TOSHIBA P3 420K (01) PDF Document

The TOSHIBA P3 420K is a 460 Volt NEMA Type 1 Chassis drive with the following standard specifications:

The TOSHIBA P3 420K requires specific components and cable sizes for safe operation:

Molded case circuit breaker (MCCB) Amp rating: 350A

Ampacity (FLA x 1.25): 314A

Main power and motor load typical cable size: #400 AWG

Input/Output Lug Wire Capacity: 6-4/0 / 6-4/0 AWG

Frequency command input, frequency meter, and ammeter circuits: 3-core shield cable (speed reference) or 2-core shield cable, size #20 AWG

Other signal circuits: #18 AWG

Always ground the unit to prevent electrical shock and 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.

Install in a secure and upright position in a well-ventilated location out of direct sunlight, with ambient temperatures between -10 degrees Celsius and 40 degrees Celsius.

Allow enough clearance space to ensure adequate ventilation and do not obstruct any ventilation openings.

Avoid installation in areas with vibration, heat, humidity, dust, fibers, steel particles, explosive mists, gases, or sources of electrical noise.

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

Use lockout and tagout procedures on branch circuit disconnects 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.

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

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

The keypad on the TOSHIBA P3 420K features the following keys and functions:

Local/Remote (SPEED CTRL): Switches the source of frequency command information between the panel and the terminal block.

Manual/Auto (RUN MODE): Switches the source of the run/stop command information between the panel and the terminal block.

Setup/Program/Monitor (S/P/M): Toggles between Setup, Program, Monitor, and Frequency Mode.

Read/Write (R/W): Used to select or enter a parameter value, frequency command, or group name.

Up/Down (U/D): Scrolls up or down through the settings of the currently displayed parameter or toggles through function group entries.

Run: Used to start a RUN command when the drive is in manual control mode.

Stop/Reset: Functions as the stop key and emergency stop key during local operation. It also functions as the reset key when an inverter trip occurs. In other modes, pressing this key twice engages emergency off.

To change the frequency command on the TOSHIBA P3 420K from 0 Hz to 60 Hz:

Step 1. Ensure the drive is in standard monitor mode with the current output frequency (0.0) displayed.

Step 2. Press and hold the UP key. The display will change to show the frequency command setting, and the value will gradually increase.

Step 3. Release the UP key when the display reaches 60.0. The data will begin blinking to indicate that the RAM value has changed but has not yet been saved to the EEPROM.

Step 4. Press the Read/Write key. The parameter name (FC) and the new setting value (60.0) will alternately display, indicating the value has been written to memory.

Step 5. The display will return to standard monitor mode showing the output frequency.

In auto mode on the TOSHIBA P3 420K:

Step 1. Press the STOP/RESET key once. The prompt “EOFF” will display and flash.

Step 2. Within two seconds, press the STOP/RESET key a second time. The emergency off command is issued, and “E” will be displayed and continue flashing.

In manual mode on the TOSHIBA P3 420K:

Step 1. Press the STOP/RESET key once. This will be treated as a regular stop command.

Step 2. Press the STOP/RESET key a second time within one second. The emergency off command is engaged, and “E” will flash continuously on the display.

A trip clear can be performed on the TOSHIBA P3 420K after the cause of the trip has been removed using one of the following methods:

1. Switch off the power to the inverter.

2. While the trip title is flashing on the display, press the STOP/RESET key. The prompt “CLr” will appear. Press the STOP/RESET key again to clear the trip and return the display to standard monitor mode.

3. Close the “RES” to “CC” connection on the terminal strip (using default programming).

The TYP parameter on the TOSHIBA P3 420K allows for the following automatic configurations:

TYP 1: Sets parameters for 50Hz standard operation.

TYP 2: Sets parameters for 60Hz standard operation.

TYP 3: Restores standard factory-shipped conditions (clears all past trips).

TYP 4: Clears trip history only.

TYP 5: Saves user-set parameters.

TYP 6: Restores standard user-set conditions.

TYP 7: Initializes inverter typeform to reset a typeform mismatch error.

The TOSHIBA P3 420K display provides automatic warning indicators for several conditions:

C: Indicates an overcurrent condition.

P: Indicates an overvoltage condition.

L: Indicates an overload condition.

H: Indicates an overheat condition.

t: Indicates a communication timeout condition.

LC: Indicates a combined overload and overcurrent condition.

LCH: Indicates combined overload, overcurrent, and overheat conditions.

The Damper Function on the TOSHIBA P3 420K is used to turn on a damper before the motor runs and turn it off after the motor stops. It requires assigning code 55 (damper status input) to an input terminal and assigning code 64 or 65 (open damper) to an output terminal.

When a run command is issued, the “open damper” signal is sent. The motor will wait to turn on until the “damper status” changes to 1 (damper full open). If the “damper status” input becomes 0 while the motor is running, the drive trips and flashes “dAnP”.

Perform the following maintenance tasks for the TOSHIBA P3 420K:

1. Use power lockout and tagout procedures on the disconnecting means before performing maintenance.

2. Periodically check the drive for cleanliness.

3. Do not use liquid cleaning agents.

4. Keep the heatsink free of dust and debris.

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

If the TOSHIBA P3 420K trips due to overvoltage, consider the following causes and solutions:

Cause: The DC bus exceeded 787 VDC.

Solutions: Incoming AC power may have spiked; a line reactor or a lower tap on the transformer may help. If the motor is being mechanically forced to run faster than the command, install a dynamic braking resistor. During deceleration (OP2), the deceleration time may be too short; increasing this time or enabling Overvoltage Stall Protection (Item 164) can help prevent trips.

Common trip codes for the TOSHIBA P3 420K include:

To scale the motor overload protection for the TOSHIBA P3 420K to a specific motor’s amp rating, use Item 11 (Electronic Thermal Protect Level #1). This value can be entered in amps or as a percentage. To set it as a percentage, divide the motor full load amps by the drive full load amps and multiply by 100.

The Fire Speed function on the TOSHIBA P3 420K automatically starts the motor at a preset speed and in the forward direction when fire is detected. This command has the highest priority and cannot be stopped by a standard STOP command. The motor can only be stopped by a drive trip or when the fire signal is cleared. The default speed for this function is set via Item 131 (FSor).

For a 460V TOSHIBA P3 420K, the suggested maximum output lead distances are based on the PWM Carrier Frequency:

Carrier Frequency less than or equal to 5 kHz: 600 feet for NEMA MG-1-1998 Section IV Part 31 Compliant Motors.

Carrier Frequency greater than or equal to 5 kHz: 200 feet for NEMA MG-1-1998 Section IV Part 31 Compliant Motors.