Unidrive M702 User Guide
249
Issue Number: 3
13.4 Trips, Sub-trip numbers
Table 13-4 Trip indications
Trip
Diagnosis
An Input 1 Loss
Analog input 1 current loss
28
An
Input 1 Loss
trip indicates that a current loss was detected in current mode on Analog input 1 (Terminal 5, 6). In 4-20 mA
and 20-4 mA modes loss of input is detected if the current falls below 3 mA.
Recommended actions:
•
Check control wiring is correct
•
Check control wiring is undamaged
•
Check the
Analog Input 1 Mode
(07.007)
•
Current signal is present and greater than 3 mA
An Input 2 Loss
Analog input 2 current loss
29
An Input 2 Loss
indicates that a current loss was detected in current mode on Analog input 2 (Terminal 7). In 4-20 mA and
20-4 mA modes loss of input is detected if the current falls below 3 mA.
Recommended actions:
•
Check control wiring is correct
•
Check control wiring is undamaged
•
Check the
Analog Input 2 Mode
(07.011)
•
Current signal is present and greater than 3 mA
An Output Calib
Analog output calibration failed
219
The
An output Calib
trip indicates that one or both of the Analog outputs have failed during the zero offset calibration
.
The
failed output can be identified by the sub-trip number.
Recommended actions:
•
Check the wiring associated with analog outputs
•
Remove all the wiring that is connected to analog outputs
and perform the calibration
•
If trip persists replace the drive
App Menu Changed
Customization table for an application module has changed
217
The
App Menu Changed
trip indicates that the customization table for an application menu has changed. The menu that
has been changed can be identified by the sub-trip number.
Recommended actions:
•
Reset the trip and perform a parameter save to accept the new settings
Autotune 1
Position feedback did not change or required speed could not be reached
11
The drive has tripped during an autotune. The cause of the trip can be identified from the sub-trip number.
Recommended actions:
•
Ensure the motor is free to turn i.e. mechanical brake was released
•
Ensure Pr
03.026
and Pr
03.038
are set correctly (or appropriate 2
nd
motor map parameters)
•
Check feedback device wiring is correct
•
Check encoder mechanical coupling to the motor
Sub-trip
Reason
1
Output 1 failed (Terminal 9)
2
Output 2 failed (Terminal 10)
Sub-trip
Reason
1
Menu 18
2
Menu 19
3
Menu 20
Sub-trip
Reason
1
The position feedback did not change when position feedback is being used during rotating autotune.
2
The motor did not reach the required speed during rotating autotune or mechanical load measurement.
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