7-18
Trips and Fault Finding
DC590+ DRV Series DC Digital Drive
Trip Message and Meaning
Possible Reason for Trip
Corrective Action
Open circuit motor field
Check connection and measure field resistance
Faulty operation of field controller
Where an ac supply feeds the onboard field regulator,
check connections FL1 & FL2 for line-to-line voltage
(rather than line-to-neutral) - L1 into FL1, L2 into FL2.
The 3-phase supply must be present for mains
synchronisation purposes
FIELD FAIL
Field current is less than 6% of rated
current when in Current Control
mode
Field current is less than 50mA when
in Voltage Control mode (with default
current burden of 15K)
Alarm time delay : 1 second
Refer to Field Fail Procedure, page 7-
25
No field supply required
For loads where no field supply is required, e.g. a
permanent magnet motor, set the FIELD ENABLE
parameter to disable to suspend this alarm.
Mains voltage incorrect
Check the mains voltage of the drive (refer to Product
Code). This alarm may not operate properly if the
voltage is incorrect, i.e. wrong unit or drive
Supply voltage low or missing
Check auxiliary/control or main supply power
Blown fuse
Check external branch circuit protection.
Check auxiliary/control fuse F1
Check that armature current calibration does not exceed
drive rating
Loose wiring. AC contactor not
engaging
Check all power wiring for tightness
3-PHASE FAILED
3-phase supply failure
Defective power supply pcb
Replace power supply pcb
One or more phase of supply low,
too high or missing
Check all three phases of the supply, other equipment
on the same supply may be unbalancing the phases.
Check fuses F1, F2, F3, FS4, FS5 and FS6
Supply waveform badly distorted
Install line chokes and/or isolation transformers if not
present with drive
Power supply pcb or control door
defective
Replace the power supply board
PHASE LOCK
Drive SCR firing phase lock loop
unable to lock to supply waveform
Supply frequency outside 46-65Hz
range
Change supply for one within the 45 to 65Hz range
Summary of Contents for 590+ DRV
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Page 126: ...3 88 Installing the Drive DC590 DRV Series DC Digital Drive...
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Page 166: ...5 8 Control Loops DC590 DRV Series DC Digital Drive...
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Page 274: ...A 30 Serial Communications DC590 DRV Series DC Digital Drive...
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Page 292: ...B 16 Certification DC590 DRV Series DC Digital Drive...
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Page 330: ...C 36 Parameter Specification Tables DC590 DRV Series DC Digital Drive...
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Page 368: ...D 20 Programming DC590 DRV Series DC Digital Drive Functional Description...
Page 496: ...D 148 Programming DC590 DRV Series DC Digital Drive Programming Block Diagram Sheet 1...
Page 497: ...Programming D 149 DC590 DRV Series DC Digital Drive Programming Block Diagram Sheet 2...
Page 498: ...D 150 Programming DC590 DRV Series DC Digital Drive Programming Block Diagram Sheet 3...
Page 499: ...Programming D 151 DC590 DRV Series DC Digital Drive Programming Block Diagram Sheet 4...
Page 504: ...D 156 Programming DC590 DRV Series DC Digital Drive...
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