150 Rockwell Automation Publication 750-UM006C-EN-P - March 2022
Chapter 5 Drive Maintenance
Replace the Surge
Suppressor AC Source Brake
(1SUP270)
1. Follow the procedure to Remove Power on page 146.
2. Follow the instructions to Remove the Front Cover
on page 148.
3. Use a Phillips screwdriver to disconnect wires T1 and T2 from the
brake contactor.
4. Use a T20 torque bit to remove the two torque screws that hold the
surge suppressor in place.
5. Remove the surge suppressor.
6. Unpack and inspect the new surge suppressor AC source brake.
7. Connect the wires to terminals T1 and T2 on the brake contactor.
Torque screws to 15 lb•in.
8. Use the two existing screws and the T20 torque bit to secure the surge
suppressor to the enclosure.
Torque screws to 15 lb•in.
9. Follow the instruction to Attach the Front Cover
on page 169.
TIP The AC source brake surge suppressor is only available in the 400/480V AC
source brake option. It is not available in the 24V DC brake option.
Contactor
Surge Supressor AC
Source Brake (1SUP270)
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