Powerware 9315 User Manual Page 28

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INSTALLING THE UPS SYSTEM
EATON Powerware
®
9315 UPS (500–750 kVA) Installation and Operation Manual S 164201244 Rev E www.powerware.com
3-4
NOTE Remove the entire MBC top panel to punch conduit holes.
4. Connect phase A, B, and C power wiring from the bypass source to the
respective bypass inputs in the MBC.
5. Connect phase A, B, and C and Neutral power wiring from the MBC output to
the critical load.
6. Connect the control wiring (battery breaker open and close signals and shunt DC
disconnect) between the external battery disconnect and the UPS.
7. After wiring the UPS system to the facility power and critical load, be sure to
ground the system according to local and/or national electrical wiring codes.
8. Install the batteries according to the battery and battery rack manufacturer's
instructions and all applicable codes and regulations, including the National
Electrical Code (NEC), Article 480.
NOTE There is no DC disconnect device within the UPS.
NOTE The DC input to the UPS is protected by internal fuses F30 and F31.
3.4 Multi‐Module Installation
To install a multi‐module system using a System Bypass Module (SBM), perform the
procedures in the following paragraphs.
3.4.1 Installing UPS Internal Power and Control Wiring
NOTE The cables used in Steps 2 through 4 are coiled inside the Input/Rectifier cabinet and are attached
at the factory to the rectifier output.
To install the UPS internal power and control wiring in a multi-module system (see
Appendix A for terminal locations and wiring access information):
1. Remove the plastic shield covering the inverter input section of the
Output/Inverter cabinet.
2. Route the DC Link cables from the rectifier output (Input/Rectifier cabinet) to the
inverter input (Output/Inverter cabinet) through the knockouts in the cabinet
sides.
3. Connect the positive DC Link power wiring to the inverter input. Connect two
cables to each inverter. For tightening torque, see Table H on page A-16.
4. Connect the negative DC Link power wiring to the inverter input. Connect two
cables to each inverter. For tightening torque, see Table H on page A-16.
5. Reinstall the plastic shield to inverter input section.
6. Route the ground braid from the top of the Output/Inverter cabinet to the
Input/Rectifier cabinet through the cabinet knockouts. The ground braid is
secured at the factory to the Output/Inverter cabinet mounting stud.
7. Connect the ground braid to the Input/Rectifier cabinet mounting stud and
secure.
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