Rockwell Automation 1336-SN-SP19A Snubber Board Kit, 1336-SN-SP19A - Manual (Page 13)

1336-5.49 – August, 1999
I-13
1. Remove power from the drive.
2. Open the Enclosure door.
3. Check for zero volts at:
– +DC/-DC Brake Terminals
– terminals R-L1, S-L2, and T-L3 on TB1
4. Check for the absence of control voltage at:
– terminals V+ and V- on TB11 on the Main Control Board
– TB20 and TB21 on drives using a PLC Comm Adapter Board
– TB5, TB6, and TB7 on drives using a Standard Adapter
Board
– TB3 on drives using a Control Interface L-Option Board
5. Remove the four nuts fastening the High Voltage Guard to the
standoffs.
6. Pull the guard away from the drive.
Drive shown with door open, sides removed.