American Power Conversion LVD300, LVD400, LVD500, LVD600, LVD1000 manual

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CONTACTOR REMOVAL AND REPLACEMENT

Caution

This procedure requires the system to be powered down.

11To remove and replace the contactor, proceed as follows:

11.1Switch off and isolate the external power system and check that the contactor is de- energised.

11.2Disconnect the output cable at the battery end and wrap with two layers of insulating tape.

11.3Open the door, remove five screws and washers on the plastic plate and lift off the plate.

11.4Remove two nuts on FS1 and lift off the fuse.

11.5Remove five nuts and washers holding the contactor to the two adjacent copper bars and remove the curved copper bar.

11.6Remove the eight push-on connectors on the contactor (four on the top and four on the side), noting the locations and the polarity of the diode.

11.7Remove four nuts and washers on the base of the bracket and lift the bracket and contactor out of the unit.

11.8Remove three nuts and washers on the bracket and lift off the contactor.

11.9Fit a replacement contactor to the bracket using three nuts and washers.

11.10Secure the contactor and bracket in the unit using four nuts and washers.

11.11Refit the eight push-on connectors to the contactor observing correct locations and correct polarity of the diode.

11.12Refit the curved copper bar and the contactor to the adjacent copper bars using five screws and washers.

11.13Refit FS1 using two nuts and washers.

11.14Refit the plastic plate using five screws and washers and close the door.

11.15Remove the insulating tape from the output cable and connect to the battery negative terminal.

11.16Power up the system as detailed in Section 5 Para 8.

Text artwork 990-9030 Rev. A. Equipment Handbook for the Low Voltage Disconnectors series

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Contents Equipment Handbook for LOW Voltage Disconnectors Contents Issue Description Date Issue RecordBefore using the units, carry out the following Safety InstructionsSpecification Circuit Description Controls and Indicators KeyswitchLVD PCA LED Installation and Commissioning Voltage Monitor SettingsPRE Installation Test Stage 3 Remote loop connections Stage 2 Input connectionsStage 3 Output connections Stage 2 Power up sequenceCommissioning Stage 1 PreparationRoutine Maintenance SIX Monthly CheckAnnual Check Field Replaceable Units Fault Diagnosis and RepairFuse Failure Fuse Removal and ReplacementLVD PCA Removal and Replacement LVD PCA FailureContactor Failure Contactor Removal and Replacement Manual Handling PreparationMethod Date Service LOG Action Actioned by Name Signature Appendix a Service LOGBlank Drawing Appendix B System DrawingsRear