UPS MAINTENANCE
EATON
Powerware
®
BladeUPS
®
(12 kVA) User's Guide
S
164201649 Rev 3
www.powerware.com
109
Replacing the Electronics Module
The electronics module can be replaced easily without turning the UPS
off or disconnecting the load. Battery mode is not available and your
equipment is not protected; however, the utility power continues to be
passively filtered by the UPS.
If you prefer to remove input power to change the electronics module,
see “Individual UPS Shutdown” on page 83.
NOTE
DO NOT DISCONNECT the electronics module while the UPS is in Battery mode.
To replace the electronics module:
1.
Standalone UPS configurations only.
Transfer the UPS to Bypass
mode.
Parallel for capacity configurations only.
Transfer the UPS to Bypass
mode. The CAN bus remains energized.
Parallel for redundancy configurations only.
No mode transfer is
necessary. If the UPS is operating in a parallel for redundancy
configuration when its electronics module is removed, the load
automatically transfers to the remaining UPSs. The CAN bus
remains energized.
NOTE
Disconnecting the control panel from the electronics module automatically transfers
the UPS to Bypass mode. However, transferring the UPS to Bypass mode manually BEFORE
disconnecting the control panel provides extra protection to the electronics module and is
recommended.
2.
Parallel configurations only.
Disconnect the redundant signal cable(s)
from the UPS. For the location of the redundant signal cable, see
Figure 36 on page 53.