Filter
Top Products
Quattro DC Troubleshooting
Name Description
Possible Causes & Corrective Action
Extrn Fault 2
User defined external logic
fault input
...Closure of this contact will
cause the drive to declare the
fault
Check Parameter Settings and External Fault
Signal Wiring
Check the correct logic input is configured for
the correct TB1 terminal and set to EXTRN
FAULT 2 (C2)
Verify the source of the external fault signal.
Extrn Fault 3
User defined external logic
fault input
...Closure of this contact will
cause the drive to declare the
fault
Check Parameter Settings and External Fault
Signal Wiring
Check the correct logic input is configured for
the correct TB1 terminal and set to EXTRN
FAULT 3 (C2)
Verify the source of the external fault signal.
Extrn / Fault 4
User defined external logic
fault input
...Opening of this contact will
cause the drive to declare the
fault
Check Parameter Settings and External Fault
Signal Wiring
Check the correct logic input is configured for
the correct TB1 terminal and set to EXTRN
/FLT 4 (C2)
Verify the source of the external fault signal.
Field Ground
The hardware has detected a
ground fault in the field circuit.
The current going into the field
coil F1 does not match the
current returning from the field
coil F2.
Check Motor Field wiring
Check motor field wiring and motor field for
insulation breakdown, unintentional contact to
other objects, or shorts
Ensure proper connection of shield drain wires
to chassis
Possible bad current sensor
Field I REG
Measured field current does
not match commanded field
current. OR no data update
between processor PCBs.
Check Parameter Settings
Verify parameter settings for motor field control
Check Motor Field Current Sensing
Verify accuracy of motor field current sensing
with a separate DC current ammeter
Replace Field Control Module if there are
significant differences
If re-occurs or there are not significant
differences increase stand-by field current
setting to reduce current decay time
Replace main processor PCBs if data updates
to operator do not occur
External Relay Timing
Check for improper external relay timing
Check Wiring
Missing jumper wire at Customer Interface
Board PCB, TB2
Field IGBT
A de-saturation condition has
been detected on a field
power bridge IGBT.
Check motor field and wiring
Verify motor field and motor wirings are not
shorted
If re-occurs and the motor field and wirings are
okay, suspect a defective field module IGBT
Field LOSS
The field voltage has been
above 25% of rated and the
field current below 2% of rated
for 1.5 seconds
Check motor field and wiring
Verify motor field and motor wirings are not
open
84