Connection and commissioning
5.3 Function test of the ETU
Air circuit breaker 3WL10
144
Manual, 11/2017, L1V30499596002-01
5.3
Function test of the ETU
WARNING
Hazardous voltage
The power supply of the ETUs through the main circuits must only be used after
commissioning.
Before first commissioning, supply the ETU with power via the TD310, TD410, or TD420
test devices.
The tests listed in the table refer to the testable functions and characteristics of the ETU.
Test
Checks
LED test
(ETU 3-series)
1.
Connect the test device TD410 or TD420 to the ETU.
2.
Press the test button of the ETU for at least 6 seconds, but for no longer than 9 seconds.
Release the key as soon as the LEDs on the ETU light up.
3.
Check whether the following LED sequence is followed correctly:
–
LEDs of S, I, and G light up.
–
LED of L changes three times between yellow and red.
–
All LEDs go out.
Battery test
The battery test is integrated into the LED test.
•
If the battery is missing or flat, the LED of L flashes yellow five times after the LED test.
•
If the battery is working normally, the LED test is passed as described above.
Protection function
test
1.
Make sure that the circuit breaker is in the CLOSED (ON) position and that the main circuits are
not carrying any current.
2.
Connect the ETU via the TD410 or TD420 test device with a laptop on which the powerlog soft-
ware is installed.
3.
Run the protection function test with powerlog and check whether all protection functions are
working correctly.
Trip test
(ETU 3-series)
1.
Make sure that the circuit breaker is in the CLOSED (ON) position and that the main circuits are
not carrying any current.
2.
Connect the test device TD410, TD420, or TD310 to the ETU.
3.
Press the test key of the ETU for at least 9 seconds.
4.
Check whether the circuit breaker has tripped or the TU reset button has moved forward.
Trip test
(ETU 6-series)
1.
Make sure that the circuit breaker is in the CLOSED (ON) position and that the main circuits are
not carrying any current.
2.
Connect the ETU via the TD410 or TD420 test device with a laptop on which the powerconfig
software is installed.
3.
Perform the trip test with powerconfig
4.
Check whether the circuit breaker has tripped or the TU reset button has moved forward.
Summary of Contents for SENTRON 3WL10
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Page 8: ...Table of contents Air circuit breaker 3WL10 6 Manual 11 2017 L1V30499596002 01 ...
Page 170: ...Operation 6 3 Troubleshooting Air circuit breaker 3WL10 168 Manual 11 2017 L1V30499596002 01 ...
Page 180: ...Technical specifications Air circuit breaker 3WL10 178 Manual 11 2017 L1V30499596002 01 ...
Page 199: ...Air circuit breaker 3WL10 Manual 11 2017 L1V30499596002 01 197 Circuit diagrams 10 ...
Page 212: ...Circuit diagrams Air circuit breaker 3WL10 210 Manual 11 2017 L1V30499596002 01 ...
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