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Step 4: install the new bimetal thermostat – Rockwell Automation 20P PowerFlex DC Drive - Frame C Bimetal Thermostat User Manual

Page 14

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14

PowerFlex® DC Drive - Frame C Bimetal Thermostat

Step 4: Install the New
Bimetal Thermostat

Install the new Bimetal Thermostat in reverse order of removal as detailed
in Step 3:

Remove the Existing Bimetal Thermostat on page 4

.

Apply thermal grease to the bottom of the Bimetal Thermostat before
securing it to the heatsink.

Use the following table to determine the proper tightening torque for the
screws that secure the SCR modules to the heatsink:

Use the following table to determine the proper tightening torque for the
bolts that secure the bus bars to the SCR modules:

!

ATTENTION: Thermal grease must be applied to the bottom
of the Bimetal Thermostat before securing it to the heatsink or
damage to the drive may occur.

230V AC Input
Drive Current
Rating Code

DC Amps

AC Line Amps HP

Final Torque

521

521

426

150

6 Nm (53 lb.-in.)

460V AC Input
Drive Current
Rating Code

DC Amps

AC Line Amps HP

Final Torque

495

495

404.4

300

4.5 - 5.5 Nm (40 - 48.7 lb.-in.)

667

667

544.9

400

6 Nm (53 lb.-in.)

230V AC Input
Drive Current
Rating Code

DC Amps

AC Line Amps HP

Final Torque

521

521

426

150

11 - 13 Nm (97.4 - 115 lb.-in.)

460V AC Input
Drive Current
Rating Code

DC Amps

AC Line Amps HP

Final Torque

495

495

404.4

300

11 - 13 Nm (97.4 - 115 lb.-in.)

667

667

544.9

400