Rockwell Automation 140G-Rx Installation Instruction-140G-R - Manual (Page 16)

DIR 1000682R0002 (L5757)
(16)
8.4.6. Electrical and mechanical accessories
- Make sure that the accessories are securely fixed to the circuit-breaker.
- Make sure that the electrical accessories are correctly connected to the circuit-breaker.
- Gearmotor: after every 10000 operations, check the brushes for wear and replace the gearmotor if necessary.
- Make sure that the releases ( opening/undervoltage/closing ) are in good conditions (absence of excessive wear, overheating,
breakages) Fig. 28.
- Make sure that the mechanical operation counter functions correctly (if applicable) by operating the circuit-breaker.
17.7 lb-in
2 Nm
2
Warning
lever
1
1
Fig. 28
8.4.7. Protection releases
- -Power the protection release with a battery unit.
- Make sure that the protection release functions correctly: release test with the “Trip Test”.
- Make sure that the front leds do not indicate the presence of alarms.
- Make sure that the cables are correctly connected to the release modules and to the release itself (if applicable).
- Remove the battery unit from the relay upon termination.
8.4.8. Maintenance operations; final inspections
- Fit all the parts back in place and re-connect the auxiliary power supply if necessary.
- Re-assemble the escutcheon plate as shown in figure 30.
9.7 lb-in
1.1 Nm
Fig. 29
- Using the different auxiliaries in succession, perform the operations 10 times:
- Opening (in both the local and remote modes, if applicable)
- Closing (in both the local and remote modes, if applicable)
- Release by means of the trip test via relay
- Check the operations in accordance with the following sequence:
- Open - Springs unloaded
- Open - Springs loaded
- Closed - Springs unloaded
- Closed - Springs loaded
- Make sure that the accessories (if installed) function correctly
- Make sure that the gearmotor (if installed) functions correctly
- Make sure that the undervoltage release functions correctly (if installed)
- Make sure that the shunt opening release functions correctly (if installed)
- Make sure that the shunt closing release functions correctly (if installed)
- Make sure that the circuit-breaker's auxiliary contacts function correctly (if installed)
- Make sure that the lock for circuit-breaker in open position (key or padlock) functions correctly (if installed)
WARNING: warning lever has to be activated only in case of coils set substitution. Do not operate it in other
conditions