Trips and Fault Finding 7-5
DC590+ DRV Series DC Digital Drive
Adaptor Board Current Calibration Switch (Frame 3)
NO POWER IS CONNECTED AT THIS STAGE
View the switch with the terminal cover removed:
IA CAL - Armature Current Calibration Switch
This switch should be set to "1" (ON) for armature current scaling greater than 128A.
Set to OFF for other values.
NOTE This switch must only be operated with the drive powered-down.
Power Board Current Calibration Switches (Frames 4 & 5)
NO POWER IS CONNECTED AT THIS STAGE
View the switches with the drive door open:
IA CAL – Armature Current Calibration Switch (SW1)
This switch is always set to LO on Frame 4 & 5 drives of 500A or less, and HI for drives greater than 500A.
IF CAL – Field Current Calibration Switch (SW2)
This switch is always set to HI for Frame 4 & 5 drives. The maximum field current calibration is 30A.
Power Board
SW2
SW1
HI
LO
HI
LO
IF CAL
IA CAL
1
OFF
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