Load Test (Test 2) - BONFIGLIOLI Agile Operating Instructions Manual

If, for example, there is a short-circuit between the positive DC-link potential (P or +) and branch U
(see illustration), the test would be stopped and error "T0104 earth /P-U fault" would be displayed.
This may either be a "hard" short-circuit or a "soft" short-circuit, i.e. a short-circuit with a relatively
high resistance. Short-circuits which don't trigger a hardware overcurrent circuit break, but cause a
current which is 10 % greater than the rated current peak value are signaled as earth faults.
If an error is signaled during a test with connected load, the test should be repeated without connect-
ed load, in order to find out if the device or the load is defective.
If an error is only signaled while the load is connected, it is an earth fault in the load or - if the DC-link
terminals are assigned - possibly a short-circuit between a load branch and a DC-link potential.
If an error is also signaled while the load terminals are not assigned, there is a short-circuit in the
device or an IGBT is defective. In the case of a defective IGBT or a short-circuit in the device, the
error will be signaled in several branches while the load is connected, as the current can also flow via
the load. In this case, only the messages generated while the load is not connected may be consid-
ered.
Non-switching IGBTs or non-functioning current measurements will not be detected by this test (but
by Test 2). In this case existing errors which would normally be identified by this test might not be
detected.
Message
T0001 Stop. Test stopped by user.
T0002 Permanent error. Non-acknowledgeable error present. No (further) test possible.
T0003 Signals on digitals inputs STOA and STOB for enable missing. No enable.
T0010 At the beginning of the test an inadmissible current flows.
T0101 Earth /N-U fault. Short-circuit between branch U and the negative DC-link potential or
PE.
T0102 Earth /N-V fault. Short-circuit between branch V and the negative DC-link potential or
PE.
T0103 Earth /N-W fault. Short-circuit between branch W and the negative DC-link potential or
PE.
T0104 Earth /P-U fault. Short-circuit between branch U and the positive DC-link potential or
PE.
T0105 Earth /P-V fault. Short-circuit between branch V and the positive DC-link potential or
PE.
T0106 Earth /P-W fault. Short-circuit between branch W and the positive DC-link potential or
PE.
T0114 Soft earth /P-U fault. Short-circuit between branch U and the positive DC-link potential
or PE.
T0115 Soft earth /P-V fault. Short-circuit between branch V and the positive DC-link potential
or PE.
T0116 Soft earth /P-W fault. Short-circuit between branch W and the positive DC-link potential
or PE.
Err.S41 Internal error. Abort and restart the test.
7.2.3.2

Load test (Test 2)

WARNING
If a synchronous motor is connected: The test must not be started while the synchro-
nous motor runs.
Synchronous motors may move briefly while the test is performed. It must be checked if
there is a potential risk of personal injury or material damage. If necessary, access to
hazard areas must be safely prevented.
Test 2 checks if a direct current can be impressed in the connected load (motor) in both directions.
Test 1 should be carried out before without any error messages.
For Test 2, a three-phase choke or a three-phase motor must be connected as the load. The load may
be star or delta connected. The star point must not be connected, if applicable.
Test 2 impresses a positive and a negative direct current in each branch one after the other. If no
current can be impressed in any direction, an error will be signaled. IGBTs, the load and the current
measurement are checked.
Agile
Operating Instructions
Meaning
118
06/2013
Parameter descriptions
Machine data