OPERATION
Eaton 9355 UPS (10/15 kVA) User's Guide S 164201594 Rev D www.eaton.com/powerquality
89
Internal Bypass Startup
To start the UPS when load is powered by internal bypass:
1. If an optional wall-mounted bypass cabinet is installed, proceed to
Step 2; otherwise, proceed to Step 4.
2. Verify the wall mounted bypass is transfered to Bypass mode (see
“Using the Wall-Mounted Bypass Cabinet” on page 97.
3. Proceed to Step 4.
4. Verify that the maintenance bypass switch is in the SERVICE
position (see Figure 59 on page 95).
5. If an optional isolation transformer is installed, switch the input
circuit breaker to the ON position (see Figure 12 on page 21).
6. Switch on utility power where the UPS is connected.
7. Wait for the front panel LCD to illuminate.
The
indicator flashes.
The UPS starts and transfers to Bypass mode. This may take up to
1 minute.
The
indicator flashes while transfering to bypass then goes out
with the illuminating to indicate the UPS is operating in Bypass
mode. The load is now powered by utility power.
The display indicates On Manual/Maintenance Bypass.
8. To switch to Normal mode from internal Bypass mode, transfer the
wall mounted bypass to Bypass mode (see “Using the
Wall-Mounted Bypass Cabinet” on page 97 and rotate the internal
maintenance bypass switch to the UPS position.
The indicator illuminates to indicate the UPS is operating in UPS
mode. The load is now powered by UPS.
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