EMERSON BETTIS XTE3000 (01) PDF DOCUMENT

The SLEEP function on the EMERSON BETTIS XTE3000 is a feature that reduces power consumption from the electronics when the actuator is not moving. This is particularly useful when the actuator is powered by a battery and solar panel, especially in applications where valve travel events are infrequent. In such cases, the solar panels recharge the battery and power the actuator’s electronics while the motor is off. Since the motor’s run time is a small fraction of the total time, the energy needed to power the electronics during the rest phase is significant. By reducing the energy requirements when the motor is off, the SLEEP function allows for the use of a smaller solar panel.

The SLEEP function on the EMERSON BETTIS XTE3000 is activated when the following conditions are met:

• Parameter SLEEP in the “Actuator Setup” menu, “Restricted” section: ENABLED

• Firmware releases of microprocessors of BASE card:

– >= 9.00 for H8S

– >= 7.00 for PIC

• Firmware release of microprocessors of TERMINAL BOARD card:

– >= 6.0 for PIC

• Parameter SW TYPE in the “Actuator Setup” menu, “Restricted” section: XTE

• Parameter POSITIONER in the “Actuator Setup” menu, “Restricted” section: DISABLED

• Parameter HW CONFIG in the “Actuator Setup” menu, “Restricted” section: BASE

• Parameter BACKLIGHT in the “Actuator Setup” menu, “Restricted” section: AUTO

• Parameter POWER TYPE in the “Nameplate” menu, “Power Supply” section: DC

The EMERSON BETTIS XTE3000 electronics switch to SLEEP status under the following conditions:

• 30 seconds after the end of the last command (OPEN, CLOSE, ESD) via remote control

• 2 minutes after the last operation on the local interface of the actuator (local selector and push buttons)

• 30 seconds after closure of Bluetooth or RS232 communication channel (if present)

• 255 seconds after closure of IrDA communication channel (if enabled)

The EMERSON BETTIS XTE3000 electronics exit from SLEEP status when:

• A command via remote control OPEN, CLOSE, ESD is given (duration of command: > 0.7 second)

• The actuator local interface (local push buttons or selector) is operated (duration of command: >1 second)

• There is a change of position > 5% via manual operation (handwheel)

When the XTE3000 exits from SLEEP mode, all functions are restored and the actuator is available for normal operation.

When the EMERSON BETTIS XTE3000 is in SLEEP mode:

• The alphanumeric display of the actuator shows the message “SLEEP”

• Auxiliary relays AS1, AS7 do not change

• Auxiliary relay AS8 is de-energized

• Monitor Relay status is as follows:

– de-energized if parameter “MR in SLEEP” in “Actuator Setup” menu, “Restricted” section is “OFF” (with local selector in REMOTE)

– energized if parameter “MR in SLEEP” in “Actuator Setup” menu, “Restricted” section is “ON” (with local selector in REMOTE)

• Any internal heater on the electronic cards are OFF

The minimum current consumption is obtained with an actuator without a 4 – 20 mA position re-transmission card and with the parameter “MR in SLEEP” in the “Actuator Setup” menu, “Restricted” section set to “OFF”. In this configuration, the current consumption measured on an XTE3000 supplied at 24 V DC is 58 mA, which corresponds to 1.4 W.

• If the actuator is equipped with a 4 – 20 mA position transmitter module, the current consumption is 78 mA.

• If the parameter “MR in SLEEP” in the “Actuator Setup” menu, “Restricted” section is set to “ON”, the current consumption is 98 mA (2.4 W at 24 V DC).

When the actuator exits from SLEEP mode, all XTE3000 functions are restored to normal operation and the current consumption returns to normal.