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

SECTION 4: CONTROLS AND INDICATORS

KEYSWITCH

1The keyswitch, when set to the NORMAL position allows the contactor to operate normally as described in Section 3 Para 2. When set to the OPEN position the contactor control is overridden and the contactor is de-energised.

LVD PCA LED

2LED1 on the LVD PCA is lit when the input voltage to the PCA is greater than the low voltage disconnection (LVD) setting, 42.5 V. During normal operation the LED is lit.

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

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American Power Conversion LVD300, LVD400, LVD500, LVD600, LVD1000 manual Controls and Indicators, Keyswitch, Lvd Pca Led

Contents

Equipment Handbook for LOW Voltage Disconnectors Contents Issue Description Date Issue Record Before using the units, carry out the following Safety Instructions Specification Circuit Description Keyswitch Controls and IndicatorsLVD PCA LED Voltage Monitor Settings Installation and CommissioningPRE Installation Test Stage 3 Remote loop connections Stage 2 Input connections Stage 3 Output connections Stage 2 Power up sequenceCommissioning Stage 1 Preparation SIX Monthly Check Routine MaintenanceAnnual Check Field Replaceable Units Fault Diagnosis and Repair Fuse Failure Fuse Removal and Replacement LVD PCA Failure LVD PCA Removal and ReplacementContactor Failure Contactor Removal and Replacement Preparation Manual HandlingMethod Date Service LOG Action Actioned by Name Signature Appendix a Service LOG Blank Drawing Appendix B System Drawings Rear