81001-956-63-R | SNUBBER RESISTOR ASSEMBLY

SNUBBER RESISTOR ASSEMBLY500W10OHMThe AC Line Snubber board and Resistors are located at the top of the drive chassis behind the Control board and Control EMI Shield and Field and Pulse Transformer circuit boards. 1. Remove the signal wires from the fuse switch connectors and secure the wires in a position above the input terminals.2. Loosen the lower bolt and washer that secures the bottom of each leg fuse to the SCR module leg input terminal.3. Loosen the upper bolt and washer that secures the top of the fuse to the AC input terminal, rotate the top of the fuse out and downward, and remove the fuse from the lower terminal. 4. Disconnect the gate lead wires from the connectors mounted at the top ofeach SCR module leg assembly. Note: there are three connectors at the frontfor non-regenerative drives. There are six connectors, three in front andthree behind, for regenerative drives.5. Disconnect the wires for the bimetal thermostat from the connector mounted on the middle of the left SCR module leg assembly.6. Disconnect the wires for the capacitors and resistors from the connectors mounted at the bottom of each SCR module leg assembly