User manual

86-86000-00 B02 - Page 45

3. Operation

3.0 Scope

Operation describes EX RT 5/7/11 systems characteristics of indicators and controls, modes and specifications

and theory of operating the EX RT 5/7/11. The user procedures include performing software programming that

will maintain smooth performance. Refer to Figure 1.6 for descriptions of circled numbers.

3.1 Initial Startup

NOTE

Both AC and DC sources must be present for normal startup of EX RT 5/7/11

systems. If the system is configured for cold start, the AC and DC sources are

required for initial startup only.

1. Check that the manual bypass switch

is on Normal position.

2. Set the Normal AC source circuit breaker

to the ON position.

3. Set the battery circuit breaker

to the ON position.

The load is powered via the Bypass AC source, but not protected by the UPS.

Batteries are recharging, an eight-hours recharge period is necessary to get full back-up time.

LED

is ON.

Figure 3-1: Initial Startup Display.

OFF ON