Field Fail Procedure - Parker 590+ DRV Product Manual

Field Fail Procedure

If the motor field supply fails while the drive is running a motor, the drive should trip on either an OVERSPEED alarm or a FIELD FAILED alarm.
DC590+ DRV Series DC Digital Drive
Field volts missing
from motor
Check external field
supply jumper positions
(see Chapter 3)
OK
Is the field supply No
Connect wiring
connected to terminal
FL1 and FL2?
Yes
Are all wires and
No
Tighten wiring
terminals connected
and tight?
Yes
Is field supply voltage
No
Check field supply
present at terminals
wiring and protection
FL1 and FL2?
Yes
Is field supply voltage No
Disconnect all power!
present at drive
terminals D1 and D2
Check continuity between
terminals FL1 and D1
Yes
Yes
Stack bad;
Check continuity between
D1 terminals block or
terminals FL2 and D2
tracking broken
Figure 7-3 Field Power Troubleshooting Flowchart
Trips and Fault Finding
NOTE: The wires connected to terminals
FL1 and FL2 must be in phase with
L1 and L2 respectively
No
Bad 590+ DRV Chassis
No
Bad 590+ DRV Chassis
7-25