Trips and Fault Finding 7-19
DC590+ DRV Series DC Digital Drive
Trip Message and Meaning Possible Reason for Trip Corrective Action
Cable from drive/5703 unit not
plugged into drive P3 port
Check connection from drive/5703 unit to drive P3 port
on control door
5703 unit not receiving
communications from master device
Check output connections and operation of master 5703
unit
Drive incorrectly configured Check configuration
5703 RCV ERROR
Invalid data received via P3 port from
another drive/external 5703 unit
when configures as a slave device
(Alarm only operates when MODE
parameter is set to 5703 SLAVE)
5703 peer-to-peer communications
module failure
Replace 5703
Stall timer set too short for load
acceleration
Increase stall trip delay and/or install trip threshold if
STALL TRIP is being used
Field current below motor nameplate
rating (if the drive is in field current
control mode)
Confirm motor field current with DC clamp on meter or
current meter. Check drive field calibration
Field connection miswired Check motor field wiring is in accordance to motor prints
Motor unable to deliver sufficient
torque
Check motor not undersized for load requirements
Mechanical binding of the motor Check for mechanical problems which may cause motor
to stall
STALL TRIP
With motor stationary (AT ZERO
SPEED parameter shows TRUE),
current has exceeded the STALL
THRESHOLD parameter value for
longer than the STALL TRIP DELAY
parameter value
(Alarm only operates when the STALL
TRIP parameter is enabled).
Field voltage is not set correctly (if the
drive is in field voltage control mode)
Adjust the FLD.VOLTS RATIO parameter in the
Calibration section, Chapter 4.
Drive not Autotuned (unstable current
loop)
The drive AUTOTUNE procedure MUST be followed for
the motor the drive is to control. Repeat the AUTOTUNE
procedure
Drive incorrectly calibrated Check the calibration settings
Manual tuning of the drive leaves
current loop unstable
(THIS IS NOT RECOMMENDED!)
Current loop response may be manually adjusted only
AFTER AUTOTUNING is complete. Check current loop
response.
Coupling between motor and
feedback device slipping
Stop drive and isolate. Check coupling tightness
Motor armature faulty Check motor resistance to ground. Check for armature
shorts
Loss of main supply during
regeneration
Check main supply branch circuit protection and SCR
fuses (if existing)
OVER I TRIP
Armature overcurrent trip.
Armature current has exceeded 280%
of calibration value
NOTE 300% loading not exceeding
15ms or 325% not exceeding
6.6ms is acceptable)
Control Door or Power Supply PCB
faulty
Replace defective board
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