Emerson 7000 manual Controller Settings for MV ATSs, Controller Voltage Jumper Blocks

381333-395 Operation 2-2

Controller Settings for MV ATSs

Refer to the Group 5 Controller User’s Guide 381333-126for ATS status display messages, time delays, pickup & dropout settings, & adjustments.

The Group 5 Controller is factory set for medium- voltage operation. These are the special settings:

Controller Voltage Jumper Blocks

The control voltage is typically stepped down to 120V, so the eight jumper blocks are factory arranged horizontally for 120 V input.

Controller Menu Settings

ATS Information Rating is 1200, 2000, or 3000 A

The ATS information rating setting is 1200A, 2000A,

or 3000A.

ATS Information is Circuit Breaker Non Bypass

The ATS information type setting is BRKR NBPS.

What to do if a circuit breaker trips

1.Check the protective relay and determine the cause of the trip. Refer to device’s instructions. After fault is cleared, reset the protective relay.

2.Reset the Lock-Out Relay by turning it to RESET.

3.Turn the Breaker Control switch to CLOSE.

4.Press the Alarm Reset button. The circuit breaker should close if its connected source is selected by the controller to serve the load.

Lock-Out Relay (optional)

If an optional protective relay (device) is ordered for the normal and/or emergency source circuit breaker, a Lock-Out Relay (LOR) is provided on the appropriate circuit breaker compartment door. The LOR responds to a signal from a protective relay and in turn trips the appropriate circuit breaker. The LOR locks out the circuit breaker until the fault is cleared and the protective relay and LOR has been reset. A red light and orange window shows tripped.

Lock-Out Relay status lights

green=ready to respond red=trip signal sent to CB

Status window

black=ready to respond orange=trip signal sent to CB

Figure 2-3. Lock-Out Relay

Breaker Control Tripped Light (opt.)

If an optional protective relay (device) is ordered, the BREAKER CONTROL switch has a center amber TRIPPED light. This light comes on if the CB has been tripped by the LOR.

Optional circuit breaker tripped light

amber=CB tripped open

Figure 2-4. Breaker Control Tripped light