Emerson unidrive m200 - Page 257

Check brake resistor wiring.
Check braking resistor value is greater than or equal to the minimum resistance value.
Check braking resistor insulation.
Trip OI.E1
Value 228
Short description Over current on U phase
On enabling of the drive it switches the negative DC bus to each motor terminal in turn to detect an earth fault. If current is detected in any of the motor windings the drive will
trip OI.E1, OI.E2 or OI.E3 depending on which terminal the fault is detected (U, V, or W respectively).
Recommended actions:
Check motor and connection to motor
Trip OI.E2
Value 229
Short description Over current on V phase
See OutputphaseU.
Trip OI.E3
Value 230
Short description Over current on W phase
See OutputphaseU.
Trip OI.Sn
Value 92
Short description Over current in snubber components (size 5 and above)
This trip indicates that an over-current condition has been detected in the rectifier snubbing circuit on sizes 5 and above. The exact cause of the trip can be identified by the sub-trip
number.
Sub-trip Reason
1010 Rectifier snubber over-current trip detected.
Recommended actions:
Ensure the internal EMC filter is installed.
Ensure the motor cable length does not exceed the maximum for selected switching frequency.
Check for supply voltage imbalance.
Check for supply disturbance such as notching from a DC drive.
Check the motor and motor cable insulation with an insulation tester.
Fit an output line reactor or sinusoidal filter
Trip Out.P
Value 98
Short description One of the motor windings is not drawing current
Output phase loss detected. A test can be made for output phase loss when the drive is enabled or the output phase loss condition can be detected while the drive is running as
defined by OutputPhaseLossDetectionEnable (06.059).
Sub-trip Reason
1 Phase U is not connected when drive is enabled
2 Phase V is not connected when drive is enabled
3 Phase W is not connected when drive is enabled
4 The drive output frequency is above 4Hz and a phase is disconnected for the time specified by OutputPhaseLossDetectionTime (06.058)
Recommended actions:
Check motor and drive connections.
To disable the trip set OutputPhaseLossDetectionEnable (06.059) to Off.
Trip OV
Value 2
Short description DC Bus voltage is high
This trip indicates the the DC bus voltage has exceeded a maximum value instantaneously or VM_DC_VOLTAGE_SET[MAX] for 15s. The trip threshold varies depending on voltage
rating of the drive as shown below.
Voltage rating Threshold
200 415
400 830
575 (size 5 and above) 990
690V (size 7 and above) 1192
The exact cause of the trip can be identified by the sub-trip number.
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
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