Powerware Uninterruptible Power Supply SOLA 4000 - Manual (Page 67)

SOLA 4000 - Operation
JUE 401266 67
5 Operating Instructions
5 OPERATING INSTRUCTIONS
5.1 Switching On the UPS System / from
Maintenance Bypass
Initial UPS Operating Mode:
The UPS is switched off, the load may or may not be supplied by
maintenance bypass, IBY and all other power switches are open.
Operating Steps:
A: • Switch on the external mains supply for the UPS; both the
rectifier input and the bypass input when separate supplies are
provided.
• Open the UPS front door or the part necessary to allow access
to the switches IRP, IRE, IUG and IBY.
IBY:
If the b ypass switch IBY, is not already on, close it now (for
parallel systems with internal maintenance bypasses see Note
1 page11) The load is now supplied by the maintenance by-
pass.
IRP: • Close the IRP switch.
The rectifier starts and the UPS performs a self-test.
The UPS operating panel will beep 3 times and test all the
LEDs. The audible alarm may continue beeping and can be
muted by pressing "RESET" once.
IUG: • Close the IUG switch.
IRE: • Close the IRE switch.
IB: • Close the battery switch IB.
Repeat A above, for all units within the system (Hot-standby and
Parallel systems).
B: • Check that the LEDs for the bypass and the output are illumi-
nated.
IBY: • Open the IBY switch inside all units (or within the External
Maintenance Bypass cabinet if installed).
RESET: • Press the pushbutton "RESET" on the operating panel of any
unit.
START: • Press the pushbutton "START" on the operating panel of all
units within the system. The inverter(s) will start and will switch
over to take the load when ready (SSI closes).
Note: The pushbuttons "START" and "RESET" must be depressed
for about 1 sec.