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Drive Fault Register (Continued)
Btt: 6
Hex Value: 0040H
Sug. Var. Name: FLT_FLD@
Range: N/A
Access: Read Only
UDC Error Code: 1006
LED: PM. FLT on the PMI Processor module
Description: The Field Loss Fault bit will be set when:
l
0
The field current feedback value is less than the Field Loss Trip Point parameter value entered during
configuration for 5 times the electrical time constant of the field. This assumes FLD_RUN@ (register
100/1 100, bit 4) has been turned on.
The field current feedback value dips below the Field Loss Trip Point parameter for 30 msec. after the
field has been turned on.
Bit: 7
Hex Value: 0080H
Sug. Var. Name: FLT_TAC@
Range: N/A
Access: Read Only
UDC Error Code: 1007
LED: FDBK OK on the Resolver & Drive I/O module
Description: The Speed Feedback Loss Fault bit is set when the motor’s CEMF is greater than 40%
of the rated armature voltage value entered as a configuration parameter and the speed feedback
signal is less than 5% of the motor base speed as entered as a configuration parameter. This bit is
not used if the No Speed Feedback option is selected as a configuration parameter.
Bit: 8
Hex Value: 01 OOH
Sug. Var. Name: FLT_TBW@
Range: N/A
Access: Read Only
UDC Error Code: 1008
LED: FDBK OK on the Resolver & Drive l/O module
Description: The Motor Speed Feedback Broken Wire Fault bit is set if a sine or cosine signal being
used for speed or other application feedback is missing due to a broken wire or the resolver gain
tunable (RES_GAN%)
being set too low. This bit is always tested if a resolver is used. This bit is not
set if No Speed Feedback is selected during parameter entry and register 101 /1 101, bit 10 is set.
Refer to register 101/1 101, bit 10 for more information.
Bit: 9
Hex Value: 0200H
Sug. Var. Name: FLT_RES@
Range: N/A
Access: Read Only
UDC Error Code: 1009
LED: N/A Description: The Resolver Fault bit is set when a blown fuse is detected on the Resolver &
Drive l/O module.
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