Emerson Unidrive M200 Parameter Reference Manual page 276

This trip indicates a fault with a thermistor in the Power stage (i.e. open circuit or short circuit).
Sub-trip Reason
0 Thermistor failure in the main power stage
1010 Thermistor failure in the rectifier module
Recommended actions:
Hardware fault - contact the supplier of the drive.
Trip thS
Value 25
Short description Motor thermistor short circuit
This trip indicates that the motor thermistor is short circuited or has a low impedance.
Digital input 5 mode (08.035) is set to 1 and the resistance of the thermistor connected to DI 5 is less than 50ohms.
Recommended actions:
Check thermistor continuity.
Replace motor / motor thermistor
Trip Tun.1
Value 11
Short description Autotune trip 1
The drive has tripped during an Autotune. The cause of the trip can be identified by the sub-trip number.
Sub-trip Reason
1 Reserved
2 The motor did not reach the required speed during a rotating auto-tune or mechanical load measurement.
Recommended actions:
Ensure the motor is free to run e.g. mechanical brake is released.
Trip Tun.3
Value 13
Short description Autotune trip 3
The drive has tripped during a rotating auto-tune or mechanical load measurement. The cause of the trip can be identified from the associated sub-trip number.
Sub-trip Reason
1 Measured inertia has exceeded the parameter range during a mechanical load measurement.
2 Reserved
3 The mechanical load test has been unable to identify the motor inertia.
Recommended actions:
Check motor cable wiring is correct.
Recommended actions for sub-trip 3:
Increase the test level.
If the test was carried out at standstill repeat the test with the motor rotating within the recommended speed range.
Trip Tun.S
Value 18
Short description The Autotune was interrupted
The drive was prevented from completing an auto-tune, because either the Final drive enable or the Final drive run were removed.
Recommended actions:
Check the drive enable signal (terminal 11) is active during the auto-tune ( Digital I/O 2 State (08.002) and User Enable (06.038) are both at 1.
Check that there is either a Run Forward command (Digital Input 3 State (08.003) and Run Forward (06.030) are both at 1), or a Run Reverse command
( Digital Input 4 State (08.004) and Run Reverse (06.032) are both at 1) during the auto-tune. If Enable Sequencer Latching (06.040) = 1, check also that Digital I/O 2 State
(08.002) and Not Stop (06.039) are both at 1.
Trip U.OI
Value 8
Short description User defined motor Over current trip
Motor current has exceeded the User defined limit set in User Over Current Trip Level (04.041).
276
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10