EPS 7000 Single and Shared Systems

Current sharing control signals allow load sharing by the UPS modules. These cables are in a loop-type configura- tion, from the APOZ PCA in the first UPS module, continuing to the APOZ PCA in the last UPS module, then back to the APOZ PCA in the first UPS module.

Ribbon and control connectors are to be plugged into corresponding receptacles located in the UPS cabinet. Verify that all connectors are locked in properly.

3.6 Finishing the Installation

Once all connections have been completed, install the kick plates at the base of all enclosures, as appropriate to your installation. Side plates must be installed first, then back and front plates. For installations flush-mounted against back or side walls, those kick plates can be left off.

3.7Start-up

Start-up presents the procedure to be used for preparation of power-up of the EPS 7000. Use this section in conjunction with the EPS 7000 User’s Manual (MGE part number S-M, 86-134004-00, which details the start-up procedures, operation, controls, and indicators utilized during start-up.

3.7.1Checks Before Start-up

Before starting the EPS 7000, read thoroughly the EPS 7000 Users Manual (MGE part number 86-134005-00-00/ 86-134004-00). Be certain that you fully understand the operation of the indicators, controls, and operational sequences.

Before starting the EPS 7000, make certain that these conditions exist (as applicable to your installation):

◗All power and control wires have been properly connected and securely tightened.

◗The upstream and downstream protective devices are not tripped, and have been sized properly for the UPS inrush and load requirements.

◗The input voltage is the same as indicated on the UPS nameplate, located inside the right door of the EPS 7000 module.

◗The air filters located inside each EPS 7000 module front door are properly installed and free of dust, dirt, and debris. Make certain that no objects block the air intake around the front bottom of the enclosures, and that the air exhaust at the top rear of the enclosures is free of obstructions.

◗The UPS module input isolation circuit breaker Q1 is in the OFF (open) position.

◗The bypass circuit breaker Q4S is in the OFF (open) position.

◗The optional maintenance bypass circuit breaker Q3BP (if present) is in the OFF (open) position.

◗The optional UPS isolation circuit breaker Q5N (if present) is in the OFF (open) position.

◗The battery disconnect circuit breaker QF1 is in the OFF (open) position.

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Installation