Siemens SENTRON 3WL10 - Alarms and Troubleshooting

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129) 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 powercon󹪝g software.
2. Check whether there are any alarm messages and evaluate them (see Chapter Alarms
(Page191)).
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 powercon󹪝g.
4. After the tests, remove the TD410 Breaker Data Adapter or TD420 test device from the ETU
and the PC.
7.6 Final tests
1. Mount all removed parts and covers on the circuit breaker again.
Proceed as shown in the Section Removing the front plate and accessories (Page 202) in the
reverse order.
2. Reconnect the terminals for auxiliary supply connection (if required).
3. Withdrawable breaker only: Move the circuit breaker into the TEST position.
Service and maintenance
7.6Final tests
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
204 Equipment Manual, 10/2023, L1V30499596002-03