Powerware 9315 Installation & Operation Manual page 27

Parallel redundant uninterruptible power supply

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Figure 8 points out the connection areas of the two UPS modules and the parallel

cabinet. The A connection is the power input connections from UPS 1 and UPS 2 to

the parallel cabinet. It is recommended that the UPS modules are labeled in

accordance with Module Output Breaker (MOB) labeling (e.g., the MOB 1 terminals E9

through E11 should be wired with UPS 1, terminals E9 through E11, E12 is the

neutral). The MOBs have already been designated as MOB 1 and MOB 2. See

Table A---2 in Appendix A of this manual for power terminations of the parallel cabinet

and the UPS modules. For power wiring requirements and recommendations, see

Tables A---3 and A---4 in Appendix A of this manual. For power wiring connections or

terminal strip locations, refer to Figure 13 in Appendix A of this manual.

The B connection is the control wiring connection between the communication panels

of the UPS modules and the parallel cabinet. In the UPS module, the TB3 terminal

strip is located on the left side of the UPS cabinet and to the left of the TB1 terminal

strip on its communication panel. For control wiring requirements and

recommendations, see Table A---1 in Appendix A in this manual. For control wiring

connections and terminal strip locations, refer to Figure 13 in Appendix A of this

manual.

For the UPS Module connections, please refer to the PowerwareÒ 9315 Installation

manual provided with the UPS system for protection and wiring requirements and

recommendations.

For the C connections, make sure the bypass feeds originate from the same power

source. Means for separate isolation (circuit breaker or disconnect) are

recommended. Refer to the PowerwareÒ 9315 Installation manual provided with the

UPS system for bypass power wiring.

For the D connection, make sure input feeds originate from the same power source.

Means for separate isolation (circuit breaker or disconnect) are recommended. Refer

to the PowerwareÒ 9315 Installation manual provided with the UPS system for input

feeds to the UPS module.

Powerware 9315 Parallel Redundant System I & O

164202013 Rev. D 041599

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