Testing The Etu - Siemens SENTRON 3WL10 Manual

Service and maintenance
7.5 Basic unit and accessories
7.5.4

Testing the ETU

Test with the TD310 Activation & Trip Box
1. Connect the TD310 Activation & Trip Box to the ETU.
2. Perform the trip test (see Chapter Application planning (Page 137) and Operating
Instructions).
3. Check the correct cable connection to the tripping modules and to the release.
4. ETUs of the 6-series only: Call up the wear indicator on the contacts of the circuit breaker
on the display.
5. After the work, remove the TD310 Activation & Trip Box from the ETU.
Check the TD410 Breaker Data Adapter and the TD420 test device.
1. Connect the TD 410 or TD420 to the ETU and to a PC with the powerconfig software.
2. Check whether there are any alarm messages and evaluate them (see Chapter Alarms
(Page 203)).
3. If there are no alarm messages, perform the trip tests and self-tests with the test button
on the ETU or with the corresponding software functions of powerconfig.
4. After the tests, remove the TD410 Breaker Data Adapter or TD420 test device from the
ETU and the PC.
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3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01