Emerson Powerdrive F300 Reference Manual page 316

Reset the trip.
If the trip persists, replace the option module.
Trip Out Phase Loss
Value 98
Short description
This trip indicates that phase loss has been detected at the drive output.
Sub-trip Reason
1 U phase detected as disconnected when drive enabled to run
2 V phase detected as disconnected when drive enabled to run
3 W phase detected as disconnected when drive enabled to run
4 Output phase loss detected when the drive is running
5
6
7
Note that if Reverse Output Phase Sequence (05.042) = 1 the physical output phases are reversed, and so sub-trip 3 refers to physical output phase V and sub-trip
2 refers to physical output phase W.
Recommended actions:
Check motor and drive connections.
To disable the trip set Output Phase Loss Detection Enable (06.059) to zero.
Trip Over Speed
Value 7
Short description
In open-loop mode, if the Output Frequency (05.001) exceeds the threshold set in Over Speed Threshold (03.008) in either direction, an Over Speed trip is
produced. In RFC-A and RFC-S modes, if the Speed Feedback (03.002) exceeds the threshold set in Over Speed Threshold (03.008) in either direction, an
Over Speed trip is produced. If Over Speed Threshold (03.008) is set to 0.0 the threshold is then equal to 1.2 x the value set in Maximum Reference Clamp
(01.006).
In RFC-A and RFC-S modes if an SSI encoder is being used and P1 SSI Incremental Mode (03.047) is set to Off, an Over Speed trip will beproduced when the
encoder passes through the boundary between its maximum position and zero.
Recommended actions:
Reduce the Speed Controller Proportional Gain Kp1 (03.010) to reduce the speed overshoot (RFC-A and RFC-S modes only).
If an SSI encoder is being used, set P1 SSI Incremental Mode (03.047) to On.
The above description relates to a standard over speed trip, however in RFC-S mode it is possible to produce an Overspeed trip with sub-trip 1. This is caused if the
speed is allowed to exceed the safe level in RFC-S mode with flux weakening. See Enable High Speed Mode (05.022) for details.
Trip Over Volts
Value 2
Short description
This trip indicates that the DC bus voltage has exceeded VM_DC_VOLTAGE[MAX] or VM_DC_VOLTAGE_SET[MAX] for 15s. The trip threshold varies depending
on voltage rating of the drive drive as shown below.
Voltage rating VM_DC_VOLTAGE[MAX]
200 415
400 830
575 990
690 1190
The exact cause of the trip can be identified by the sub-trip number.
Source xx
Control 00
system
Control 00
system
Recommended actions:
Increase deceleration ramp.
Decrease the braking resistor value (staying above the minimum value).
Check nominal AC supply level.
Check for supply disturbances which could cause the DC bus level to rise.
Check motor insulation using a Megger.
316
VM_DC_VOLTAGE_SET[MAX]
410
815
970
1175
y zz
0 01: Instantaneous trip when the d.c. link voltage exceeds
VM_DC_VOLTAGE[MAX].
0 02: Time delayed trip indicating that the d.c. link voltage is above
VM_DC_VOLTAGE_SET[MAX].
Powerdrive F300 Parameter Reference Guide
Issue: 01.15.00