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9 – 101
Testing the current and energy sensors
To test the current sensors and energy transducers, press the "START" button.
A lit-up LED confirms the proper operation of the corresponding sensor/converter. If an LED flashes, the corresponding sensor/converter is
not present, not properly connected, nonconforming, or a transformer without power supply is connected.
Testing the tripping function
To test the tripping function, press one of the buttons "L", "S", "I", "N" or "G".
Long-time delayed tripping Test
If the test is successful, the "ETU STATUS" LED will light up a solid green. If errors are detected (the trip unit malfunctions),
the "ETU STATUS" LED will flash. Count the number of flashes to determine the fault (all fault codes are listed on page 9-104).
1
Charge the circuit breaker
2
Close the circuit breaker
3
Press the [L] button
The circuit breaker will trip after the set long-time delay time, plus approx. 2 seconds processing time, has elapsed. If the test device has
completed a test without faults, the "ETU STATUS" LED will light up continuously green. If a fault is detected, the LED will flash. The type of
flashing indicates what type of fault is present (fault codes are listed on page 9-104).
Short-time delayed tripping Test
The short-time delayed short-circuit tripping function and the trip unit circuitry can be tested using the test device.
1
Charge the circuit breaker
2
Close the circuit breaker
3
Press the [S] button
The circuit breaker will trip after the set short-time delay time, plus approx. 2 seconds processing time, has elapsed. If the test device has
completed a test without faults, the "ETU STATUS" LED will light up continuously green. If a fault is detected, the LED will flash. The type of
flashing indicates what type of fault is present (fault codes are listed on page 9-104).
Instantaneous tripping test
The instantaneous tripping function and the trip unit circuitry can be tested using the test device.
1
Charge the circuit breaker
2
Close the circuit breaker
3
Press the [I] button
The circuit breaker will trip after approx. 2 seconds processing time. If the test device has completed a test without faults, the "ETU STATUS"
LED will light up continuously green. If a fault is detected, the LED will flash. The type of flashing indicates what type of fault is present (fault
codes are listed on page 9-104).
START
I
L
S
N
G
L
S
I
Содержание UL 489
Страница 36: ...5 21 Frame size II 3000 A Frame size III 1 Holes 14 mm 0720 1 0721_nu ...
Страница 63: ...7 2 Horizontal connectors 0733_nu top view ...
Страница 64: ...7 3 Rear vertical connectors 0734_nu top view rear view ...
Страница 65: ...7 4 Front connectors 0736_nu front view top view ...
Страница 66: ...7 5 Front connectors and pressure wire terminals 0737_nu top view front view ...
Страница 67: ...7 6 7 2 Frame size II fixed mounted version 0494 3_nu ...
Страница 68: ...7 7 Class C always 0494 5_nu top view rear view ...
Страница 69: ...7 8 2500 0738_nu LH side view front view ...
Страница 71: ...7 10 7 4 Frame size III fixed mounted version 0495 1_nu LH side view ...
Страница 72: ...7 11 0495 2_nu top view top view ...
Страница 73: ...7 12 0495 3_nu top view rear view ...
Страница 75: ...7 14 7 5 Door cut outs fixed mounted circuit breaker Frame size I 0735_nu ...
Страница 76: ...7 15 Frame size II III 0496_nu ...
Страница 77: ...7 16 7 6 Frame size I draw out version 0745_nu ...
Страница 78: ...7 17 0746_nu rear view top view ...
Страница 79: ...7 18 0747_nu bottom view ...
Страница 80: ...7 19 0748_nu ...
Страница 81: ...7 20 0749_nu ...
Страница 82: ...7 21 7 7 Frame size II draw out version 0490 1_ul ...
Страница 86: ...7 25 7 8 Frame size III draw out version ...
Страница 87: ...7 26 ...
Страница 88: ...7 27 ...
Страница 89: ...7 28 7 9 Door cut outs for draw out circuit breakers Frame size I 0750_nu ...
Страница 91: ...7 30 7 11 External sensor for neutral conductor WLNCT2 ...
Страница 92: ...7 31 WLNCT3 ...
Страница 107: ...9 5 I tripping Ground fault tripping ...
Страница 256: ...15 12 Installing FS II and FS III 1 Socket head cap screw M5 with washer and nut 1 2 3 4 6 5 7 8 Size 4 5 Nm 45 lb in ...
Страница 307: ...22 2 Installing the door sealing frame Not for use with fuse carriages Catalog No Door sealing frame WLDSF 1 2 3 ...
Страница 351: ......