Mm Test; Maintenance Operations: Final Inspection - Allen-Bradley 140G-R Installation Instructions Manual

8.3.7.4 MM test

The test menu is available with the MM trip unit version. 2 possible option can be selected:
- Auto Test causes contacts 95s/98s to close for 1s.
- Input allows the state of inputs K14/K15 to be verifi ed: On for 15 VDC voltage values, Off for < 2 VDC voltage values.
The verifi cation and test setup are at the user's discretion and must comply with the maximum limits of the inputs and outputs.
8.3.8

Maintenance Operations: Final Inspection

- Fit all the parts back in place and reconnect the auxiliary power supply (if requires).
- Re-assemble the circuit-breaker cover and side guards as shown in fi gure 25.
Fig. 25
Manual Operation (if applicable): Check the Circuit-breaker operation; perform the operations 10 times:
- Charge the Springs - refer to 7.2.a Manual Operation for loading the closing Spring
- Close the Circuit-breaker - refer to 7.2.b Circuit-breaker closing
- Open the Circuit-breaker - refer to 7.2.d Circuit-breaker opening
- Charge the Spring - repeating the operation.
- While sequencing the Circuit-breaker check to see that the Auxiliary contacts are functioning correctly.
- Open the Circuit-breaker - Inspect and test to determine that the padlock (or key) are functioning correctly, when installed.
Remote Operation (if applicable): Installed in the circuit-breaker will be (1) spring charging motor, (1) Shunt Trip Relay and (1)
Shunt Close Relay to perform the operations of opening and closing the circuit-breaker. Using local or remote functions from the
control circuit, perform the operations 10 times:
- Charge the spring Motor - refer to 7.2.b Electrical operation for loading the closing springs.
- Close the Circuit-breaker - Using local or remote signal, energize Shunt Close Relay. Refer to 7.2.c Circuit-breaker closing.
- Open the Circuit-breaker - Using local or remote signal, energize Shunt Open Relay. Refer to 7.2.d Circuit-breaker opening.
- Repeating the operation - the spring charging motor should be continuously charging as the circuit-breaker is cycled ON-OFF.
- While sequencing the Circuit-breaker check to see that Auxiliary contacts are functioning correctly.
- Open the Circuit-breaker - Inspect and test to determine that the padlock (or key) are functioning correctly, when installed.
DIR 1000682R0002 Version 03
1
2
3
9.7 lb-in
1.1 Nm
(16)