TOSHIBA P3 4750 (01) PDF Document

Installation Safety Precautions for the TOSHIBA P3 4750:

Always ground the unit to prevent electrical shock and to help reduce electrical noise. A separate ground cable should be run inside the conduit with the input, output, and control power cables. The metal of the conduit is not an acceptable ground.

Only qualified personnel should install this equipment.

Installation of drive systems should conform as a minimum, to the 1999 NEC National Electrical Code Article 110 “Requirements For Electrical Installations”, to all applicable regulations of the Occupational Safety and Health Administration, and to any other applicable national, regional or industry codes and standards.

Install in a secure and upright position in a well ventilated location that is out of direct sunlight. The ambient temperature should be between -10° C and 40° C.

Allow clearance space to insure adequate ventilation. Do not obstruct any of the ventilation openings.

Avoid installation in areas where vibration, heat, humidity, dust, fibers, steel particles, explosive mists, gasses or sources of electrical noise are present.

Adequate working space and illumination must be provided for adjustment, inspection and maintenance of the drive.

A noncombustible insulating floor or mat should be provided in the area immediately surrounding the electrical system where maintenance is required.

Use lockout/tagout procedures on branch circuit disconnect before drive installation.

Connect three phase power of the correct voltage to input terminals L1, L2, L3 (R, S, T) and connect three phase power from output terminals T1, T2, T3 (U, V, W) to a motor of the correct voltage and type for the application. Size the branch circuit conductors in accordance with Selection of Main Circuit Wiring Equipment and Standard Cable Sizes Page 4-2.

If conductors of a smaller than recommended size are used in parallel to share current then the conductors should be kept together in sets i.e. U1, V1, W1 in one conduit and U2, V2, W2 in another (see 1999 NEC Article 300-20 and Article 310-4). National and local electrical codes should be checked for possible cable derating factors if more than three power conductors are run in the same conduit.

Install a molded case circuit breaker (MCCB) between the power source and the inverter. Size the MCCB to clear the available fault current of the power source.

Use separate metal conduits for routing the input power, output power, and control circuits.

If the factory provided door or NEMA 1 enclosure is removed from the drive, then it must be provided with an alternate enclosure before operating. The alternate enclosure should be a minimum of NEMA 1.

Do not connect control circuit terminal block return connections marked CC to inverter earth ground terminals marked GND(E).

If a secondary Magnetic Contactor (MC) is used between the inverter output and the load, it should be interlocked so the ST-CC terminals are disconnected before the output contactor is opened. If the output contactor is used for bypass operation, it must also be interlocked so that commercial power is never applied to the inverter output terminals (U,V,W).

Power factor improvement capacitors or surge absorbers must not be installed on the inverter’s output.

Operating Safety Precautions for the TOSHIBA P3 4750:

Do not touch any internal part with power applied to the inverter; first remove the power supply from the drive and wait until charge LED is no longer illuminated. Charged capacitors can present a hazard even if source power is removed.

DO NOT OPERATE THIS UNIT WITH ITS CABINET DOOR OPEN.

Only qualified personnel should have access to the adjustments and operation of this equipment. They should be familiar with the drive operating instructions and with the machinery being driven.

Only properly trained and qualified personnel should be allowed to service this equipment.

Follow all warnings and precautions. Do not exceed equipment ratings.

Do not power up the inverter until this entire operation manual is reviewed.

The input voltage must be within +/-10% of the specified input Voltage. Voltages outside of this permissible tolerance range may cause internal protection devices to turn on or can cause damage to the unit. Also, the input frequency should be within +/-2 Hz of the specified input frequency.

Do not use this inverter with a motor whose rated input is greater than the rated inverter output.

This inverter is designed to operate NEMA B motors. Consult the factory before using the inverter for special applications such as an explosion proof motor or one with a repetitive type piston load.

Do not apply commercial power to the output terminals T1 (U), T2 (V), or T3 (W) even if the inverter source power is off. Disconnect the inverter from the motor before megging or applying bypass voltage to the motor.

Interface problems can occur when this drive is used in conjunction with some types of process controllers. Signal isolation may be required to prevent controller and/or drive malfunction (contact Toshiba or the process controller manufacturer for additional information about compatibility and signal isolation).

Do not open and then re-close a secondary magnetic contactor (MC) between the drive and the load unless the drive is OFF (output frequency has dropped to zero) and the motor is not rotating. Abrupt re-application of the load while drive is on or while motor is rotating can cause drive damage.

Use caution when setting output frequency. Overspeeding a motor can decrease its torque-developing ability and can result in damage to the motor and/or driven equipment.

Use caution when setting the acceleration and deceleration time. Unnecessarily short times can cause tripping of the drive and mechanical stress to loads.

Make the following final checks before applying power to the unit for the TOSHIBA P3 4750:

Confirm that source power is connected to terminals L1, L2, L3 (R, S, T). Connection of incoming source power to any other terminals will damage the drive.

The 3-phase source power should be within the correct voltage and frequency tolerances.

The motor leads must be connected to terminals T1, T2, T3 (U, V, W).

Make sure there are no short circuits or inadvertent grounds and tighten any loose connector terminal screws.

Prior to releasing an electrical drive system for regular operation after installation, the system should be given a start-up test by qualified personnel. This assures correct operation of the equipment for reasons of reliable and safe performance. It is important to make arrangements for such a check and that time is allowed for it.

When power is applied for the first time, the drive automatically starts up in the frequency monitor function of standard monitor mode with the ‘default’ parameters set as shown in the “FACTORY SETTING” column of the parameter tables. If these settings are not optimal for the application, program the desired settings before initiating a run. The drive can be operated with no motor connected. Operation with no motor connected or use with a small trial motor is recommended for initial adjustment or for learning to adjust and operate the drive.

Maintenance procedures for the TOSHIBA P3 4750:

Use power lockout/tagout procedures on the disconnecting means in accordance with applicable electrical codes before performing any drive maintenance.

Periodically check the operating drive for cleanliness.

Do not use liquid cleaning agents.

Keep the heatsink free of dust and debris.

Periodically check electrical connections for tightness (with power off, locked out, and with charge LED extinguished).

In standard monitor mode on the TOSHIBA P3 4750, the output frequency is displayed. If the drive is not running, the present output frequency (which, just after power is applied, is 0.0) is displayed. If the ST-CC terminals are not shorted, “OFF” will be displayed.

The local frequency command on the TOSHIBA P3 4750 in standard monitor mode is adjusted by pushing the Up/Down keys while in standard monitor mode. Pushing the Setup/Program/Monitor key will toggle back to the standard monitor mode. However, the ability to use this function is limited by the Fnld parameter as shown below (O=permissible, X=not permissible):

In standard monitor mode on the TOSHIBA P3 4750, switching between forward and reverse operation is done with the following key operations (only valid while in manual control mode):

Reverse run can be disabled using the parameter dISr which is described in section “Fundamental Parameters #1”.

In standard monitor mode on the TOSHIBA P3 4750, five alarm conditions can cause alarm messages to be displayed. The alarm message and the output frequency will be displayed simultaneously if possible and flashed alternately if not. The following five conditions will cause warning messages to be displayed: overload, overvoltage, overcurrent, overheat, and communication timeout. The alarm indicators will be displayed either singularly or in combination with other alarm indicators if multiple alarm conditions exist simultaneously. If the alarm condition(s) is removed, the alarm message will automatically be removed from the display.

To enter the mode selection menu from standard monitor mode on the TOSHIBA P3 4750, press the Setup/Program/Monitor (S/P/M) key. The following selections are available in the mode selection menu, selected by pressing the Read/Write (R/W) key:

The process for accessing and editing a setup parameter in Setup mode on the TOSHIBA P3 4750, starting from standard monitor mode (displaying current output frequency, 0.0):

Step 1. Press S/P/M key to display changes to the first entry in the mode selection menu, SEEP (SETUP mode).

Step 2. Press R/W key to display changes to the first entry in the setup parameter list, ACC i (Acceleration time #1).

Step 3. Use the U/D keys to scroll through the list of setup parameter titles until the desired title is displayed (e.g., UL for upper limit frequency).

Step 4. Press R/W key to select the currently displayed parameter and display its current setting value (e.g., 60.0).

Step 5. Use the Up/Down keys (press and hold) to increase the setting value (e.g., change to 70.0).

Step 6. Releasing the up key causes the setting value to stop increasing. The data will flash to indicate that the displayed value (RAM) has been changed from the non-volatile memory value.

Step 7. Press R/W key. The parameter name, UL, and the new setting value will be alternately displayed to indicate that the new setting value has been written to memory. After two alternating display cycles, the display will return to setup mode, with the parameter title UL displayed.

Pressing the S/P/M key will return the user to standard monitor mode.

To change parameter settings in Program Mode on the TOSHIBA P3 4750, perform the following process (example changing the setting for acceleration time #1 to 20s, starting from standard monitor mode (displaying current output frequency, 0.0)):

Step 1. Press S/P/M key to switch to mode selection menu.

Step 2. Press S/P/M key twice to select program mode title PROG, then press R/W key. The first program group title is displayed (e.g., Gr.F).

Step 3. Use the U/D keys to select the desired parameter group title (e.g., Gr.F).

Step 4. Press R/W key to enter the parameter group. The first parameter title in the group is displayed (e.g., ACC i).

Step 5. Use the U/D keys to select the desired parameter (e.g., ACC i).

Step 6. Press R/W key to read the parameter setting value (e.g., 0.1).

Step 7. Use the U/D keys to adjust the setting value to the desired value (e.g., 20.0).

Step 8. Press R/W key to write the new setting value to memory. The parameter title and the new setting value will flash alternately for two cycles. Then the title ACC i is displayed. The display returns to program mode (parameter title display).

Setting other parameters is possible by performing the same process. Optionally, at this point, the S/P/M key will exit back to standard monitor mode.

To view contents of the user changed parameter group (Gr.U) in Program Mode on the TOSHIBA P3 4750 (starting from standard monitor mode (0.0)):

Step 1. Press S/P/M key to switch to mode selection menu.

Step 2. Press S/P/M key twice to select program mode title PROG, then press R/W key. User changed parameter group title (Gr.U) is displayed.

Step 3. Press R/W key to enter user changed parameter group. The first user changed parameter title is displayed (e.g., FH).

Step 4. Press Down key. The display will flash Gr.U to indicate that the drive is searching for the next user changed position.

Step 5. Next user changed parameter title is displayed (e.g., RDSL).

If there are NO parameters changed from the factory default settings, the inverter will display the next parameter group title: Gr.F after flashing Gr.U.

Pressing the S/P/M button will exit from viewing the user changed parameter group back to standard monitor mode.

To adjust the output of the FM terminal to 5Vdc at base frequency in Program Mode on the TOSHIBA P3 4750 (starting from standard monitor mode (0.0)):

Step 1. Press S/P/M key to switch to mode selection menu.

Step 2. Press S/P/M key twice to select program mode title PROG, then press R/W key. User changed parameter group title (Gr.U) is displayed.

Step 3. Press S/P/M key twice to select program mode title PROG, then press R/W key. User changed parameter group title (Gr.U) is displayed.

Step 4. Press U/D keys to select AM/FM adjustment parameter group (Gr.AM/FM).

Step 5. Press R/W key to enter AM/FM adjustment parameter group. First parameter title is displayed.

Step 6. Use the U/D keys to select the FM adjustment parameter (Fn).

Step 7. Press R/W key. The current output frequency will be displayed (not the parameter setting value).

Step 8. Use the U/D keys to adjust the setting value until the analog output matches the desired level (e.g., 50.0).

Step 9. Press R/W key. The display value and parameter title will alternately flash for two cycles.

Step 10. The display will then return to program mode with the parameter title displayed (e.g., Fn).

The Retry function on the TOSHIBA P3 4750 is programmed using Item 172, RETRY SELECTION (rbt) and Item 173, RETRY TIME SETTING (rct).

Item 172 sets the number of retry attempts (0 to 10). Retry will not function if Item 191, FAULT TRIP SAVING (b-CL) is set to option “1” (on).

Item 173 adjusts the time between retry attempts in seconds.

When the retry sequence begins, the drive will display rbt “flashing” alternately with the output frequency.

A trip clear on the TOSHIBA P3 4750 can be performed after the cause of the trip has been removed by using the following procedure in standard monitor mode (displaying the flashing trip title, E):

If any key other than the STOP/RESET key is pressed at the trip clear command prompt, the trip clear command is aborted and the display returns to standard monitor mode (where the trip title will be displayed flashing). The trip clear command does not clear the recorded past faults.

Standard setting selections on the TOSHIBA P3 4750 are performed by selecting the TYP parameter in Gr.UT. When the IY P command is executed, the display will blank for a short time, after which 0.0 will be displayed. After the settings have been automatically updated, the inverter will return to standard monitor mode.

The TYP parameter has the following options:

TYP = 0: No effect

TYP = 1: 50Hz standard operation, maximum output frequency, base frequencies, upper limit frequency, all terminal input reference point #2 frequencies, and commercial power/inverter switching frequency are set for 50Hz operation.

TYP = 2: 60Hz standard operation, maximum output frequency, base frequencies, upper limit frequency, all terminal input reference point #2 frequencies, and commercial power/inverter switching frequency are set for 60Hz operation.

TYP = 3: Standard factory-shipped conditions (sets all parameters except those in Gr.RN to their factory-shipped values). THIS CLEARS ALL PAST TRIPS.

TYP = 4: Trip history clear (only past trips are cleared).

TYP = 5: Saves user-set parameters.

TYP = 6: Standard user-set conditions (sets all parameters to the user saved settings).

TYP = 7: Initialize inverter typeform (Used to reset a ECJP error.).

If the damper status input becomes 0 (meaning the damper closes) while the motor on the TOSHIBA P3 4750 is running, the drive trips and flashes “dRnp”. The damper trip is non-retriable.

The Fire speed run command on the TOSHIBA P3 4750 has the highest priority besides a drive trip. In a fire situation, the motor cannot be stopped by the STOP command from anywhere. Before the fire signal goes off, the motor can only be stopped by a drive trip. If the fire signal is not cleared, after the trip is cleared, the motor will automatically start to run again at fire speed.

The fire speed is selected by default. The default setting for fire status input on the TOSHIBA P3 4750 is input terminal S1. The fire status input can be assigned to any input terminal by setting the input terminal function to code 56.

If the user attempts to increase the parameter value above the maximum limit when setting a parameter in Program Mode on the TOSHIBA P3 4750, the alarm is displayed in the parameter data field. The warning message and the maximum limit data are alternately displayed for two cycles. Then the display returns to the setting value display mode.

If the setting value exceeds the parameter’s minimum value when setting a parameter in Program Mode on the TOSHIBA P3 4750, the warning “L0” and the minimum value will be alternately displayed for two cycles, as in the case for the maximum warning.

If the LED message “E” with a flashing trip title is displayed in Standard Monitor Mode on the TOSHIBA P3 4750, this indicates an Emergency off trip message, displayed after the STOP/RESET key has been pressed once when in auto control mode, or the STOP/RESET key pressed twice within one second in manual control mode.

The LED message “OFF” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed whenever the ST-CC connection is open.

The LED message “POFF” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when the inverter control power supply voltage is too low.

The LED message “dCFF” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when the inverter’s main DC bus voltage is low.

The LED message “rcr::l” in the Non-Trip Messages list for the TOSHIBA P3 4750 is an Auto-restart message, alternately displayed with the output frequency whenever the inverter tries to automatically restart after a non-critical trip.

The LED message “Err I” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when 2 frequency points (F-P1, F-P2, etc.) are set too close to each other.

The LED message “ECFF” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed during a pending emergency off command (after the STOP/RESET key has been pressed once when in terminal control mode).

The LED message “Ll r L” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed during a pending coast stop command (after the Local/Remote key has been pressed once when in local control mode while the inverter is running).

The LED message “HI” in the Non-Trip Messages list for the TOSHIBA P3 4750 indicates that this maximum value warning message will be alternately displayed in the data field of a parameter when an attempt is made to increase the setting value greater than the parameter’s maximum value.

The LED message “L0” in the Non-Trip Messages list for the TOSHIBA P3 4750 indicates that this minimum value warning message will be alternately displayed in the data field of a parameter when an attempt is made to decrease the setting value less than the parameter’s minimum value.

The LED message “PASS” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed if the correct pass number is entered at the pass number prompt.

The LED message “Err” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed if an incorrect pass number is entered at the pass number prompt.

The LED message “E1” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when the inverter unit attempts to display a number that exceeds four numerical digits.

The LED message “db” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when DC injection braking is being executed.

The LED message “db on” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when motor shaft stationary control is being executed.

The LED message “FJOG” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when in forward JOG mode.

The LED message “r JDJL” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when in reverse JOG mode.

The LED message “L” in the Non-Trip Messages list for the TOSHIBA P3 4750 is an Inverter/motor overload pre-alarm display.

The LED message “r L” in the Non-Trip Messages list for the TOSHIBA P3 4750 is an Overcurrent pre-alarm display.

The LED message “P” in the Non-Trip Messages list for the TOSHIBA P3 4750 is an Overvoltage pre-alarm display.

The LED message “H” in the Non-Trip Messages list for the TOSHIBA P3 4750 is an Overheat pre-alarm display.

The LED message “I:” in the Non-Trip Messages list for the TOSHIBA P3 4750 is an Option board communication alarm display.

The LED message “In II:” in the Non-Trip Messages list for the TOSHIBA P3 4750 is displayed when the inverter unit is initializing values during resetting/power-up.

The LED message “nErr” in the Inverter Trip Codes list for the TOSHIBA P3 4750 is displayed in the trip history in standard monitor mode when no trip has been recorded since the last inverter reset or trip clear.

The cause of an Overcurrent during acceleration trip (OC1) on the TOSHIBA P3 4750 is: Drive current exceeded 145% of its rated FLA (190% above 100 HP).

Comments for OC1 include checking for phase-phase short, ensuring ACCELERATION TIME 1 (ACC1) or ACC2 (ACC2) may be too small, checking if VOLTAGE BOOST 1 (UB1) or UB2 may be too high, checking if the motor/machine is jammed, checking if the mechanical brake is engaged while the drive is running, and checking Item 176, AUTO-RESTART (R-Se).

The cause of an Overcurrent during deceleration trip (OC2) on the TOSHIBA P3 4750 is: Drive current exceeded 145% of its rated FLA.

Comments for OC2 include checking for phase-phase short, ensuring DECELERATION TIME 1 (DEC1) or DEC2 (DEC2) may be too small, checking if the motor/machine is jammed, checking if the mechanical brake is engaged while the drive is running, and suggesting adding an appropriate braking resistor across “PA” and “PB” terminals.

The cause of an Overcurrent during normal (constant speed) run trip (OC3) on the TOSHIBA P3 4750 is: Drive current exceeded 145% of its rated FLA.

Comments for OC3 include checking for phase-phase short, checking if the motor/machine is jammed, checking if the mechanical brake is engaged while the drive is running, and suggesting adding appropriate dynamic braking resistor across “PA” and “PB” terminals.

The cause of an Overcurrent in DC section during acceleration trip (OC1P) on the TOSHIBA P3 4750 is: Overcurrent in DC section during acceleration trip.

The cause of an Overcurrent in DC section during deceleration trip (OC2P) on the TOSHIBA P3 4750 is: Overcurrent in DC section during deceleration trip.

The cause of an Overcurrent in DC section during normal (constant speed) run trip (OC3P) on the TOSHIBA P3 4750 is: Overcurrent in DC section during normal (constant speed) run trip.

The cause of a Load end over current trip detected at start-up (OCL) on the TOSHIBA P3 4750 is: Load end over current trip detected at start-up (output terminals, motor wiring, etc.).

The cause of a U-phase short circuit trip detected at start-up (UCL) on the TOSHIBA P3 4750 is: U-phase short circuit trip detected at start-up.

The cause of a V-phase short circuit trip detected at start-up (OC2) on the TOSHIBA P3 4750 is: V-phase short circuit trip detected at start-up.

The cause of a W-phase short circuit trip detected at start-up (OCR3) on the TOSHIBA P3 4750 is: W-phase short circuit trip detected at start-up.

The cause of an Overvoltage during acceleration trip (OP1) on the TOSHIBA P3 4750 is: Overvoltage during acceleration trip.

The cause of an Overvoltage during deceleration trip (OP2) on the TOSHIBA P3 4750 is: Overvoltage during deceleration trip.

The cause of an Overvoltage during normal (constant speed) run trip (OP3) on the TOSHIBA P3 4750 is: Overvoltage during normal (constant speed) run trip.

The cause of an Inverter overloaded trip (OLIn) on the TOSHIBA P3 4750 is: Inverter overloaded trip.

The cause of a Motor overloaded trip (OLM) on the TOSHIBA P3 4750 is: Motor overloaded trip.

The cause of a Dynamic braking resistor overcurrent trip (OLDr) on the TOSHIBA P3 4750 is: Dynamic braking resistor overcurrent trip.

The cause of a Dynamic braking resistor overload trip (OLDr) on the TOSHIBA P3 4750 is: Dynamic braking resistor overload trip.

The cause of an Inverter overheat trip (OH) on the TOSHIBA P3 4750 is: Inverter overheat trip.

The cause of an Emergency off trip message (E) on the TOSHIBA P3 4750 is: Emergency off trip message. Displayed after the STOP/RESET key has been pressed once when in auto control mode, or press STOP/RESET key twice within one second in manual control mode.

The cause of an EEPROM failure during write cycle trip (EEP1) on the TOSHIBA P3 4750 is: EEPROM failure during write cycle.

The cause of an EEPROM abnormality during initial reading trip (EEP2) on the TOSHIBA P3 4750 is: EEPROM abnormality during initial reading.

The cause of a RAM error trip (Err2) on the TOSHIBA P3 4750 is: RAM error.

The cause of a ROM error trip (Err3) on the TOSHIBA P3 4750 is: ROM error.

The cause of a CPU error trip (Err4) on the TOSHIBA P3 4750 is: CPU error.

The cause of a Communication interruption error trip (Err5) on the TOSHIBA P3 4750 is: Communication interruption error.

The cause of a Gate array error trip (Err6) on the TOSHIBA P3 4750 is: Gate array error.

The cause of an Output current detection circuit error trip (Err7) on the TOSHIBA P3 4750 is: Output current detection circuit error.

The cause of an Option PCB error trip (Err8) on the TOSHIBA P3 4750 is: Option PCB error trip.

The cause of an Option ROM error trip (Err9) on the TOSHIBA P3 4750 is: Option ROM error.

The cause of a Low operating current trip (UL) on the TOSHIBA P3 4750 is: Low operating current trip.

The cause of a Main circuit undervoltage trip (UP1) on the TOSHIBA P3 4750 is: Main circuit undervoltage trip.

The cause of an Overtorque trip (OET) on the TOSHIBA P3 4750 is: Overtorque trip.

The cause of a Software detected earth fault trip (EF1) on the TOSHIBA P3 4750 is: Software detected earth fault trip.

The cause of a Hardware detected earth fault trip (EF2) on the TOSHIBA P3 4750 is: Hardware detected earth fault trip.

The cause of an Auto-tuning error trip (Etn) on the TOSHIBA P3 4750 is: Auto-tuning error.

The cause of an Inverter typeform and EEPROM typeform mismatch error trip (EClP) on the TOSHIBA P3 4750 is: Inverter typeform and EEPROM typeform mismatch error.

The cause of a Damper trip (drnp) on the TOSHIBA P3 4750 is: Damper trip. When damper function is selected, and damper is closed while the motor is running.

The cause of an IV analog input loss trip (L055) on the TOSHIBA P3 4750 is: IV analog input loss. Valid when LR IS =3 and frequency command is selected from IV analog input terminal.

DBR OVERCURRENT (OLDr) on the TOSHIBA P3 4750: Cause: IGBT7 (dynamic braking transistor) is damaged. Comments: Check ohm value connected to “PA” and “PB” terminals. If using multiple resistors, make sure parallel-series combination is wired correctly. Check IGBT7. Check DC bus fuse for continuity; if open, check output transistors. Consult your Toshiba distributor for authorized service.

DBR OVERLOAD (OLDr) on the TOSHIBA P3 4750: Cause: Dynamic braking resistor is in danger of overheating (as determined by drive). Comments: Check that the values entered into Item 162, BRAKING RESISTOR VALUE (Pbr) and Item 163, BRAKING RESISTOR CAPACITY (PbCP) are correct.

The cause of the OVERHEAT (OH) fault on the TOSHIBA P3 4750 is: Drive’s heatsink exceeded 90° C.

Comments: Check drive’s muffin fans (if any). Clear heatsinks of anything blocking airflow. The enclosure that the drive is installed in may be too small or there may be too many heat sources in the same enclosure. Drive may not have been properly sized for operating altitude. Thermistor on heatsink may be bad.

The cause of the EMERGENCY OFF (E) fault on the TOSHIBA P3 4750 is: Drive received one of the following ESTOP commands: 1. Drive was receiving STOP/RUN command via terminal strip when STOP button on keypad was pressed. 2. One of the drive’s input terminal’s function is set to “10” and terminal is being opened/closed to command ESTOP.

The cause of the EEPROM WRITE FAILURE (EEP1) or EEPROM READ FAILURE (EEP2) on the TOSHIBA P3 4750 is: EEPROM was unable to read/write to peripherals.

Comments: Check for miswiring that may be causing noise (such as “CC” connected to ground, an external 10 volt source connected to “PP” etc.) Control board may need to be replaced.

The cause of RAM ERROR or ROM ERROR trip (Err2, Err3, Err4) on the TOSHIBA P3 4750 is: Check for miswiring that may be causing noise (such as “CC” connected to ground, an external 10 volt source connected to “PP” etc.). Replace control board.

The cause of the OPTION ROM ERROR trip (Err6) on the TOSHIBA P3 4750 is: Check for miswiring that may be causing noise (such as “CC” connected to ground, an external 10 volt source connected to “PP” etc.). If drive is energized with option ROM installed and is later energized without option ROM installed, this fault will appear. Reset in normal fashion.

The cause of the CPU ERROR trip (Err4) on the TOSHIBA P3 4750 is: If option ROM or option board is installed or removed when drive is powered, this fault will appear. Reset like any fault. Check for miswiring that may be causing noise (such as “CC” connected to ground, an external 10 volt source connected to “PP” etc.). If the CPU is truly damaged, the fault will not reset and replacement of the control board is necessary.

The cause of the COMMUNICATION ERROR trip (Err5) on the TOSHIBA P3 4750 is: RS232 or RS485 timer did not respond.

Comments: Check wiring to RS232 or RS485 ports. Check setting of Item 286, COMMUNICATION SELECTION (OPt) (should be option “1” for RS485). Check jumpers J1, J2, and J3 on RS485 option board.

The cause of the OPTION PCB ERROR trip (Err8) on the TOSHIBA P3 4750 is: If drive is energized with an option board installed and is later energized without the board installed, this fault will appear.

Comments: Check connectors between control board and option board. Check settings of Item 99, FREQUENCY PRIORITY SELECTION #1 (FC1), Item 100, FREQUENCY PRIORITY SELECTION #2 (FC2), and Item 286, COMMUNICATION SELECTION (OPC). Use stand-offs to secure board.

The cause of the LOW CURRENT TRIP (UC) on the TOSHIBA P3 4750 is: The drive’s output current went below the current value entered in Item 186, LOW CURRENT DETECT LEVEL (LLPC) for at least the amount of time entered in Item 187, LOW CURRENT DETECTION TIME (LLPe).

The cause of the UNDERVOLTAGE TRIP (UP1) on the TOSHIBA P3 4750 is: The drive’s DC bus voltage went below 413 VDC (460 V P3), for at least the time entered in Item 184, UNDERVOLTAGE DETECT TIME (UPe).

Comments: Item 183, UNDERVOLTAGE TRIP SELECTION (UPSL) turns the ability to undervoltage trip on/off. On some models, turning on Item 174, REGENERATION POWER RIDE-THROUGH (ULIC) and adjusting Item 175, REGENERATION RIDE-THROUGH TIME (ULCC) may keep bus up during brown out if there is sufficient regen energy from the load.

The cause of the OVERTORQUE TRIP (Ot) on the TOSHIBA P3 4750 is: The drive’s torque current went above the current value programmed in Item 190, OVERTORQUE TRIP LEVEL (OtL). The drive can be programmed to torque current limit; contact your Toshiba distributor and request the torque limit application guideline.

The cause of the EARTH FAULT (SOFT) (EF1) or EARTH FAULT (HARD) (EF2) on the TOSHIBA P3 4750 is: Drive detected some current to ground. Depending on rating, drive senses ground fault via ZCT (hard fault) or HCT (soft fault).

Comments: With leads disconnected from drive, meg motor and leads. Look for any moisture that may provide current path to ground. Make sure that control wiring is separated from power wiring. Adding noise suppressors on coils of starters on same line as drive may snub noise picked up by ZCT. RF/EMI filter may help remove noise generated by SCR rectifiers in the vicinity. Make sure drive chassis and motor are grounded.

The cause of the AUTO-TUNING ERROR (Etn) on the TOSHIBA P3 4750 is: Motor’s physical characteristics are not within the window of allowable values for modeling.

Comments: Try a different inertia setting in Item 353, LOAD MOMENT OF INERTIA (nIH). Motor must be at rest to perform auto-tuning. Motor must be one HP size within the drive’s HP size. Auto-tuning is best done with motor at full-load temperature (if temperature is very cold, auto-tune error may appear).

The cause of the GATE ARRAY FAULT (Err5) on the TOSHIBA P3 4750 is: Replace control board.

The cause of the CURRENT DETECT ERROR (Err1) on the TOSHIBA P3 4750 is: Occurs when drive is stopped but CPU detects current flowing.

Comments: This fault could be caused by plugging in RS232 cable with drive powered (resulting in damage to control board). Adding a RF/EMI filter may remove noise spikes from nearby SCR rectifiers. If the control board is damaged, the drive must be serviced.

The cause of the INV TYPEFORM ERROR (EClp) on the TOSHIBA P3 4750 is: Control board is not configured to drive’s rating.

Comments: Enter option “7” into Item 310, STANDARD SETTING MODE SELECTION (c’::JP).

The cause of the DAMPER TRIP (drnp) warning display on the TOSHIBA P3 4750 is: Damper function is selected (one input terminal is assigned to 56 and one output terminal is assigned to 64). Every time a run command is issued, the output terminal will output a signal to open damper. Then waiting for the damper open full signal from the input terminal. After getting the damper open full signal from the input terminal, the motor will start to run. If the damper is closed while the motor is running, go damper trip.

Comments: Check the input damper status signal.

The cause of the IV ANALOG INPUT LOSS TRIP (L055) warning display on the TOSHIBA P3 4750 is: LR :5 = 3 and IV input voltage is less than 1 volt.

Comments: Check IV input voltage.

The cause of the DC BUS UNDERVOLTAGE (nOFF) warning display on the TOSHIBA P3 4750 is: The drive’s DC bus voltage went below approximately 413 VDC (460 volt drive), for at least the time entered in Item 184, UNDERVOLTAGE DETECT TIME (UPe).

Comments: Item 183, UNDERVOLTAGE TRIP SELECTION (UPSL) turns the ability to undervoltage trip on/off.

A flashing overcurrent display on the TOSHIBA P3 4750 means that the drive is outputting more than 110% of its rated current. If Item 14, OVERLOAD SELECTION (OLn) is set to “1” or “3” (soft stall on), the drive’s output frequency will automatically decrease in an effort to reduce current. See suggestions for remedying an inverter overload trip. Setting one of the monitor’s functions (Items 319-322) to “10” will give an indication of how close a drive is to tripping.

A flashing overcurrent display on the TOSHIBA P3 4750 means that the drive is stalling. (Stall level is set by Item 13, STALL PROTECTION CURRENT LEVEL (SEL1)). The drive’s output frequency will automatically decrease.

A flashing overvoltage display on the TOSHIBA P3 4750 means that the drive’s DC bus has exceeded 720 VDC (460 volt drive).

A flashing overheat display on the TOSHIBA P3 4750 means that the drive’s heat sink temperature has exceeded 84°C. Display disappears when heatsink temperature reaches 80°C.

A flashing comm display on the TOSHIBA P3 4750 means that the drive has momentarily lost communications. Display will clear when follower receives valid reference. Cycling power or reinitializing drive will clear warning.

The eleven input terminals on the TOSHIBA P3 4750 correspond to the following bits:

‘A’ group (input terminals 1 to 5) decoding:

• Input terminal 5 (S4): Always : (OFF) when ON
• Input terminal 4 (S3): : when ON
• Input terminal 3 (S2): : when OFF
• Input terminal 2 (S1): (upper half blank)
• Input terminal 1 (R)

‘B’ group (input terminals 6 to 11) decoding:

• Input terminal 10 (S7): : when ON
• Input terminal 10 (S6): : when OFF
• Input terminal 9 (S5): (upper half blank)
• Input terminal 8 (ST)
• Input terminal 7 (RES)
• Input terminal 6 (F)

The four output terminals on the TOSHIBA P3 4750 correspond to the following bits (Including status display of cooling fan and main contactor for initial charging circuit):

• Output terminal 4 (OUT): Option PCB
• Output terminal 3 (FL): : when ON
• Output terminal 2 (LOW): : when OFF
• Output terminal 1 (RCH): (upper half blank)

The status display of the cooling fan and main contactor for the initial charging circuit are also displayed.

The function code for Reverse direction command for an input terminal on the TOSHIBA P3 4750 is 0 (default for “R” terminal function).

The function code for Forward direction command for an input terminal on the TOSHIBA P3 4750 is 5 (default for “F” terminal function).

The function code for Drive enable for an input terminal on the TOSHIBA P3 4750 is 7 (default for “ST” terminal function).

Binary coding for number of preset speed desired on the TOSHIBA P3 4750 is achieved using function codes 1 through 4:

• Value: +1 is code 1
• Value: +2 is code 2
• Value: +4 is code 3 (default for “S3” terminal function)
• Value: +8 is code 4

The function code for Emergency stop for an input terminal on the TOSHIBA P3 4750 is 10. This setting is also subject to Item 170, EMERGENCY STOP SELECTION (ESfP).

The function code for DC injection for an input terminal on the TOSHIBA P3 4750 is 11. When outputting a frequency under DC INJECTION START FREQUENCY (dbF), short the terminal to “CC” to inject. This works in remote mode only.

The function code to Activate GROUP: FUNDAMENTAL PARAMETERS #1 (Gr.F) (open) or GROUP: FUNDAMENTAL PARAMETERS #2 (Gr.F2) (closed to “CC”) for an input terminal on the TOSHIBA P3 4750 is 12.

The function code for PID off (closed to “CC”) or on (open) for an input terminal on the TOSHIBA P3 4750 is 13.

The function codes for selecting Pattern Run on the TOSHIBA P3 4750 input terminals are:

• Select Pattern Run #1: Code 14
• Select Pattern Run #2: Code 15
• Select Pattern Run #3: Code 16
• Select Pattern Run #4: Code 17

The function code for Pattern Run continue signal on the TOSHIBA P3 4750 input terminals is 18.

The function code for Pattern Run step signal on the TOSHIBA P3 4750 input terminals is 19.

The function codes for Jog on the TOSHIBA P3 4750 input terminals are:

• Jog forward (includes forward command): Code 20. See items 127 and 128.
• Jog reverse (includes reverse command): Code 21. See items 127 and 128.

Bit numbers for binary speed reference on the TOSHIBA P3 4750 input terminals correspond to fractions of the MAXIMUM OUTPUT FREQUENCY (FH) as follows:

• Bit #0: Code 22 (value of FH/2048)
• Bit #1: Code 23 (value of FH/1024)
• Bit #2: Code 24 (value of FH/512)
• Bit #3: Code 25 (value of FH/256)
• Bit #4: Code 26 (value of FH/128)
• Bit #5: Code 27 (value of FH/64)
• Bit #6: Code 28 (value of FH/32)
• Bit #7: Code 29 (value of FH/16)
• Bit #8: Code 30 (value of FH/8)
• Bit #9: Code 31 (value of FH/4)
• Bit #10: Code 32 (value of FH/2)

The function codes related to Motor operated pot for input terminals on the TOSHIBA P3 4750 are:

• Motor operated pot: increase frequency reference: Code 34
• Motor operated pot: decrease frequency reference: Code 35
• Motor operated pot: clear frequency reference: Code 36

The function codes for Three wire control on the TOSHIBA P3 4750 input terminals are:

• Three wire control: NO momentary start push button: Code 37
• Three wire control: NO momentary stop push button: Code 38. Contact factory for information on how to realize stop with a NC contact.

The function codes for mode selection and run commands on the TOSHIBA P3 4750 input terminals are:

• emulate local/remote mode selection: Code 39
• Forward (open) or reverse (closed to “CC”) command: Code 40
• Run (use in conjunction with code 40 above): Code 41

The function codes for emulating keypad operations on the TOSHIBA P3 4750 input terminals are:

• emulate LOCAL/REMOTE key: Code 43
• emulate MANUAL/AUTO key: Code 44
• emulate SETUP/PROGRAM/MONITOR key: Code 45
• emulate UP key: Code 46
• emulate DOWN key: Code 47
• emulate READ/WRITE key: Code 48
• emulate RUN key: Code 49
• emulate STOP key: Code 50

The function codes for specific signals/priorities on the TOSHIBA P3 4750 input terminals are:

• Drive/bypass switching signal: Code 51
• give “RR” priority over “IV” and “RX”: Code 53
• give “IV” priority over “RR” and “RX”: Code 54

The function codes for damper status input and Firespeed ON/OFF on the TOSHIBA P3 4750 input terminals are:

• damper status input (1: damper open, 0: damper closes): Code 55
• Firespeed ON/OFF: Code 56

The function code for Inverter Overload (OLIn) ENABLE/DISABLE for an input terminal on the TOSHIBA P3 4750 is 57.

The function selection codes for the output terminals on the TOSHIBA P3 4750, as determined by Item 67 (RCH), Item 70 (LOW), Item 73 (FL), and Item 76 (OUT):

For Potentiometer Operation on the TOSHIBA P3 4750, the drive must have:

1) Drive enable (“ST” to “CC” made).

2) No emergency off command (“S4” to “CC” made).

3) Direction command (“F” or “R” to “CC” made).

4) Frequency reference (wiper from pot is read via “RR” terminal).

5) MANUAL LED off (puts drive in remote mode).

To turn LOCAL LED off (with drive stopped), toggle the LOCAL/REMOTE button on keypad.

Notes for this setup:

1) Use a 3K ohm pot (1 to 10 K ohms will work).

2) The drive will accel to commanded frequency when “F” or “R” to “CC” is made.

3) The drive will decel to 0.0 Hz when “F” or “R” to “CC” is broken.

4) Motor will coast to a stop if “ST” to “CC” is broken.

5) “E” trip if “S4” to “CC” is broken.

The above information applies to a drive with factory default programming.

To follow a 4-20 mA signal on the TOSHIBA P3 4750, the drive must have:

1) “IV” dipswitch to the right of phone jack on control board (immediately under keypad) set to “I” position. “5/10” dipswitch has no effect in this scenario.

2) No emergency off command (“S4” to “CC” made).

3) Drive enable (“ST”-“CC” made).

4) Direction command (“F” or “R” to “CC” made).

5) Frequency reference (4-20 mA signal at “IV” terminal).

6) MANUAL LED off (puts drive in remote mode).

To turn LOCAL LED off, toggle the LOCAL/REMOTE button on keypad.

Notes for this setup:

1) The drive will accel to the commanded frequency when “F” or “R” to “CC” is made.

2) The drive will decel to 0.0 Hz when “F” or “R” to “CC” is broken.

3) Motor will coast to a stop if “ST” to “CC” is broken.

4) “E” trip if “S4” to “CC” is broken.

5) The above information applies to a drive with factory default programming.

6) Do not connect “CC” to ground.

To follow a local (keypad) frequency reference with an auto stop/run on the TOSHIBA P3 4750, the drive must have:

1) Drive enable (“ST”-“CC” jumpered).

2) No emergency off command (“S4” to “CC” made).

3) Direction command (“F” or “R” to “CC” jumpered).

4) Frequency reference: Adjust on keypad with arrows. Press READ/WRITE to enter.

5) AUTO LED on (puts drive in auto mode).

6) Toggle the LOCAL/REMOTE button on keypad to turn LOCAL LED “on” or Programming: Set Item 312, FREQUENCY MODE SELECTION (FllOd) to Option 2.

Notes for this setup:

1) The drive will accel to the commanded frequency when “F” or “R” to “CC” is made.

2) The drive will decel to 0.0 Hz when “F” or “R” to “CC” is broken.

3) Motor will coast to a stop if “ST” to “CC” is broken.

4) “E” trip if “S4” to “CC” is broken.

RS232 Port connection details for the TOSHIBA P3 4750 (using a Pinout for DB-9 on computer and Pinout for E3 RJ11 RS232 port):

Computer DB9 Pin to RJ11 Pin:

• Connect DB9 pin 5 to RJ11 pin 3
• Connect DB9 pin 3 to RJ11 pin 4
• Connect DB9 pin 2 to RJ11 pin 2
• Connect DB9 pin 7 to RJ11 pin 6
• Connect DB9 pin 8 to RJ11 pin 1
• Short DB9 pin 6 to DB9 pin 4
• DB9 pin 1 and 9 and RJ11 pin 5 not used

Notes for RS232 Port:

1) Free RS232 programming/monitoring software is available from Toshiba.

2) Do not insert/remove the phone plug into/from the P3 port when drive is powered.

3) Common 6 conductor phone cord can be used with an adaptor (6 conductor RJ11 female to DB9 female). The adapter is available from your Toshiba distributor or local electrical supply house.

4) “ST”-“CC” must be made.

5) “S4”-“CC” must be made.

To run from a 0-10 V reference on the TOSHIBA P3 4750, the drive must have:

1) Drive enable (“ST”-“CC” made).

2) No emergency off command (“S4” to “CC” made).

3) Direction command (“F” or “R” to “CC” made).

4) Frequency reference (0-10 V signal applied to “RR” terminal).

5) MANUAL LED off (puts drive in remote mode).

To turn LOCAL LED off, toggle the LOCAL/REMOTE button on keypad.

Notes for this setup:

1) The drive will accel to commanded frequency when “F” or “R” to “CC” is made.

2) The drive will decel to 0.0 Hz when “F” or “R” to “CC” is broken.

3) Motor will coast to a stop if “ST” to “CC” is broken.

4) The above information applies to a drive with factory default programming.

5) Do not connect “CC” to ground.

6) “E” trip if “S4” to “CC” is broken.

The objective for Programming Example 1 for the TOSHIBA P3 4750 is to Set ACCELERATION TIME #1 (ACC1) to 23.4 seconds.

This can be done in SETUP mode or in group FUNDAMENTAL PARAMETERS #1 (Gr.F).

Steps to set ACCELERATION TIME #1 to 23.4 seconds in SETUP mode on the TOSHIBA P3 4750:

Step 1. Press S/P/M key and then R/W key to enter SETUP mode.

Step 2. The first parameter is ACCELERATION TIME #1 (ACC1) . Press up or down key to adjust the value to 23.4.

Step 3. Press the R/W key to write the new value to EEPROM memory.

Toshiba employs “blinded” parameters and “blinded” groups on the TOSHIBA P3 4750 to make the many parameters more manageable.

Blinded parameters are identified by gray shading in the parameter charts. A blinded parameter is preceded by a parameter that has a shaded choice in the Adjustment Range column. For example, Item 13, STALL PROTECTION LEVEL #1 (SEL1), is visible only if Item 12, STALL PROTECTION ENABLE #1 (SEC1) has the Option set to 0.

Of the twenty groups available in the drive, ten are accessible when the drive is programmed with factory defaults and ten are blinded. To adjust a parameter that is not in one of the visible groups, that parameter’s group must first be added to the group list. This is done by turning “on” or “off” the BLIND FUNCTION SELECTION (bLnd) parameter located in group UTILITY PARAMETERS (Gr.Ut), which is an always visible group.

When GROUP: PARAMETERS CHANGED FROM FACTORY DEFAULT (Gr.U) is displayed and READ/WRITE is pressed on the TOSHIBA P3 4750, the drive will flash Gr.U and display any parameters that have been changed to a value different from the Toshiba factory set defaults. Press READ/WRITE to see the value of the parameter. The parameter can be modified with the up/down arrows. Pressing READ/WRITE again resumes the drive’s search.

The following programming on the TOSHIBA P3 4750 uses “S1” and “S2” terminals to access three preset speeds of 11.0 Hz (close “S1”-“CC”), 55.0 Hz (close “S2”-“CC”), and 33.7 Hz (close “S1” and “S2” to “CC”). “F”-“CC” and “ST”-“CC” must be made on the drive’s terminal strip. This assumes Input terminal 1 (I1) = 1 and Input terminal 2 (I2) = 2 prior to performing the following programming:

The Trim Pot Example programming for the TOSHIBA P3 4750 uses the “RX” terminal to trim a reference (i.e. a 4-20 mA input) +/-5 Hz:

The following programming on the TOSHIBA P3 4750 allows a drive to emulate motor operated pot control. Momentarily shorting “S1”-“CC” increases frequency reference. Momentarily shorting “S2”-“CC” decreases frequency reference. Momentarily shorting “S3”-“CC” erases frequency reference. “F”-“CC” and “ST”-“CC” must be made on the drive’s terminal strip. This example assumes drive is defaulted to factory settings prior to the following programming is done.

The following parameters must be adjusted to use TTC with a TOSHIBA/HOUSTON motor on the TOSHIBA P3 4750:

* Enter appropriate value from motor’s nameplate. KW = 0.746 X HP.

** Enter “0” for an EQPIII or “1” for a high efficiency motor.

*** The drive will auto tune the next time a run is initiated. This parameter is then reset to “0” by the drive.

The following parameters must be adjusted to use TTC for a GENERIC motor on the TOSHIBA P3 4750:

* Enter appropriate value from motor’s nameplate.

** Enter “0” for an EQPIII or “1” for a high efficiency motor.

**** The drive will auto tune the next time a run is initiated. This parameter is then reset to “0” by the drive.

The standard ratings for the 460 Volt NEMA Type 1 Chassis for the TOSHIBA P3 4750 model are: