SOLA 4000 - Operation
5 Operating Instructions
IPR:S1
ICP:PB2
IRE:
IUG:
IB:
IRP:
5.4Switching Off / any one Unit within a Sys- tem (Parallel and
Initial UPS Operating Mode:
The UPS is in any operating mode described in the previous sections "Operating Modes". All power switches except IBY are closed, and the load is fed either through the inverter or the static bypass.
•At the bottom of the IPR pcb (if present), switch the microswitch S1 to the manual position.
•At the top of the ICP pcb, press the pushbutton PB2.
•Open the IRE switch.
•Open the IUG switch.
• NOTE: IN ORDER NOT TO AFFECT SYSTEM PERFORMANCE, IUG MUST BE
OPENED AT THIS MOMENT.
•Open the battery switch IB.
•Open the IRP switch.
The rectifier voltage will slowly discharge and all the LED(s) on the front panel will switch off. When all the LED(s) on all the internal pcbs are off, the UPS module is free from voltage except at the inputs of IRP, IRE and IBY and at the outputs of IUG and IBY and at the respective terminals.
If this UPS module has an input supply separate to the other units in the system, the input supply switch(es) to this module may now be opened.
Final UPS Operating Mode:
The UPS module is now shut down. The load is supplied by the remaining module(s) within the system.
Attention! Even when the input supply to the UPS module is isolated, there will still be voltage present at the output terminals and the output of the switches IUG and IBY (from the remaining modules within the UPS system).
JUE 401266 | 71 |