IAC Features, Options, Controls, and Operation
5-10
EATON
Powerware
®
9390 IAC-B and IAC-T Installation and Operation Manual
S
164201590 Rev C
powerware.com
4.
Press the
button on the System Controls screen to display System Controls
Screen 2.
5.
Press the
PM OFF
button on the System Controls menu bar.
The power module (PM) status indicates SHUTDOWN
.
The input and output
contactors open, the battery breaker or disconnect is tripped, and the power
module is turned off. The bypass source supplies the critical load.
W A R N I N G
Power is present inside the cabinets.
6.
Unfasten the IAC front door latch and swing the door open.
7.
Close the MBP.
8.
Slide the interlock plate to the left.
9.
Open the MIS.
10.
Open the BIB and RIB if installed.
11.
Close the front door and secure the latch.
5.5.3 Transferring the UPS from Maintenance Bypass
C A U T I O N
Only trained personnel familiar with the operation of this equipment should transfer loads.
Failure to follow this transfer sequence may cause loss of loss of power to loads or overload
protection devices to activate.
C A U T I O N
In Bypass mode, the critical load is not protected from commercial power interruptions and
abnormalities.
1.
Unfasten the IAC front door latch and swing the door open.
2.
Close the BIB and RIB if installed.
3.
Verify that the UPS is operating and is in Bypass mode. Refer to the applicable
Powerware 9390 Installation and Operation manual, listed in paragraph 1.5.
4.
Close the MIS.
5.
Slide the interlock plate to the right.
6.
Open the MBP.
7.
Close the front door and secure the latch.
Summary of Contents for Powerware 9390 IAC-B
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