Siemens SIRIUS 3RW51 Equipment Manual page 147

Requirements
• 3RW51 soft starter is in a fault-free condition.
• Perform the test with the motor switched off.
Activation options
• Using the RESET / TEST key on the 3RW51 soft starter
• 3RW5 HMI High Feature (accessory)
Menu: "Diagnosis > Soft Starter > Self-test"
The 3RW5 HMI High Feature (LOCAL) has master control. Access protection to 3RW5 HMI
High Feature is not active or has been reset.
Here the self-test (user-test) is run through completely.
Procedure
Depending on how long the RESET / TEST keys are held pressed, the following tests are
performed in the specified sequence. Thus, if the key is held pressed for longer than 5 s, all 3 tests
are performed:
Operating time
0.15 s ... 2 s
2 s ... 5 s
> 5 s
Note
To avoid faults, perform the tests with the motor switched off.
If the 3RW51 soft starter does not respond as shown in the tables during the function test, check
the connections and the supply to the 3RW51 soft starter. If the fault persists even though the
connections are correct, the device must be replaced.
SIRIUS 3RW51 Soft Starter
Equipment Manual, 09/2020, A5E37108631002A/RS-AC/003
9.7 Diagnostics via the 3RW5 HMI High Feature module
Explanation
LED test
All LEDs are activated.
Current detection test
The current detection is tested in all 3 phases.
Motor overload protection test
The entire control circuit is tested, including the contact blocks and the
error signaling output.
If the 3RW51 soft starter responds correctly, no overload trip occurs. This
can be reset immediately without a cooling-down period by pressing
theTEST / RESET key again.
Messages & diagnostics
147