Kollmorgen MMC Smart Drive

Kollmorgen - December 2011 253
MMC Smart Drive Hardware Manual - MAINTENANCE AND TROUBLESHOOTING
35
Drive Power Mod-
ule Fault
The drive’s power section
detects a fault condition.
Verify AC power is applied to
drive.
Contact Kollmorgen.
36
Drive Setup Data
Fault
The configuration data
has been corrupted.
Re-download Drive Setup Data.
41 Drive Relay Fault
The drive’s power section
relay did not function
properly during power-up.
Check the drive system connce-
tions. Adjust as necessary.
Contact Kollmorgen.
42
Drive PM2 Over
Current Fault
Current feedback ex-
ceeds the drive over cur-
rent fault limit.
Adjust the over current fault limit.
Output short circuit.
Remove all power and motor
connections, and perform a con-
tinuity check from the DC bus to
the U, V, and W motor outputs. If
a continuity exists, check for wire
fibers between terminals, con-
tact Kollmorgen.
Motor cabling wires short-
ed together.
Disconnect motor power cables
from the drive. If faults stop, re-
place cable.
Internal motor winding
short circuit.
Disconnect motor power cables
from the motor. If the motor is dif-
ficult to turn by hand, it may need
to be replaced.
43
Drive PM Over
Temperature Fault
Drive power module tem-
perature exceeds the
drive power module tem-
perature fault limit
Check to be sure that the drive is
being operated within the contin-
uous power rating.
Check for adequate enclosure
ventilation. Ensure cooling air
flow is adequate in space around
the drive.
Check for clogged vents or de-
fective fan.
Contact Kollmorgen.
44
Motor Ground
Fault
Ground fault has oc-
curred.
Make sure motor ground con-
nections are correct.
Replace defective motor ground
wires.
Check for internal motor winding
short circuits.
45
Drive AC Input
Over Voltage Fault
Incoming AC voltage is
too high.
Verify input VAC is within speci-
ficaitons.
Table 10-2: Drive Diagnostic LED Codes (Continued)
Code Description Possible Causes Possible Remedies