Owner's manual

REV 2 CT-7500 S2 USER’S MANUAL

3.2.3. Timing an OPEN-CLOSE-OPEN Operation

The OPEN-CLOSE-OPEN operation requires the user to enter two time delays (in milliseconds)

between the circuit breaker operations. The first delay is from the first OPEN command to the

CLOSE command, and the second delay is from the CLOSE command to the second OPEN

command. Follow the steps below to time an OPEN-CLOSE-OPEN operation:

a. Start from the “START-UP” menu:

Press the [1] key (TIME BRKR).

b. The following screen will be displayed:

Press the [1] key (NO).

c. The following screen will be displayed:

Press the [1] key (WINDOW = 1 SEC).

d. The following screen will be displayed:

Press the [1] key (INTERNAL TRIGGER).

e. The following screen will be displayed:

Press the [5] key (O-C-O).

TIMING MODE:

1. OPEN 2. CLOSE

3. O-C 4. C-O

5. O-C-O

TRIGGER MODE:

1. INTERNAL TRIGGER

2. EXTERNAL TRIGGER

TIMING WINDOW:

1. WINDOW = 1 SEC

2. WINDOW = 10 SEC

3. WINDOW = 20 SEC

INSERTION RESISTOR?

1. NO

2. YES

1. TIME BRKR 02/26/11

2. GET RSLT 09:15:25

3. SETUP

4. DIAGNOSTICS