Quattro DC Troubleshooting
101
Name
Description
Possible Causes & Corrective Action
Comm Fault
The drive is being operated by
serial communications and one
of the following has occurred:
Communication time-out – The
drive did not receive a valid
run-time message within 40ms
while running
Bad message checksum –
Drive has detected 3
consecutive bad message
checksums
Bad Serial Connection
Remove and re-seat the RS-422 serial cable
Check car controller serial driver board
Check the serial cable connected to the drive’s
RS-422 port
The Customer I/O PCB on the drive may need
to be replaced
Possible problem with car controller serial
communication
Grounding Issue
Check grounding between car controller and
drive
Noise on serial channel due to the cable
Comm Fault
Invalid
Checksum
(operator)
The operator received four
consecutive invalid messages
Noise or Bad Connector Connection
Remove and re-seat the operator in its cradle
If re-seating the operator did not work, the
operator or the drive’s control board may need
to be replaced
Comm Fault No
Drv Handshake
(operator)
The operator lost
communications with the
drive’s control board.
Bad Connector Connection
Remove and re-seat the operator in its cradle
If re-seating the operator did not work, the
operator or the drive’s control board may need
to be replaced
Contactor Flt
Contactor confirm on TB1-1 is
opened when the regulator
release is active and the speed
reference is greater than 20%
of contract speed.
Check parameter settings and contactor
Check CONTACT FLT TIME (A1) parameter
for the correct contactor fault time.
Verify wiring to logic input 1 (CONTACT
CFIRM (C2)) is correct and Logic Input 1 (C2)
is set to CONTACT CFIRM
Verify Logic Output 1 is set to CLOSE
CONTACT (C3)
Verify N.C. Inputs are correct
Safety chain issue
Contactor hardware problem
Problem with poles or auxiliary
Cube data Flt
The cube data for the motor
side processor is invalid.
Parameters Corrupted
Re-enter parameters and power-cycle
If re-occurs, replace Drive Control board
Note: This fault cannot be reset, unit must be
powered down before fault will clear.
Cube ID Fault
The cube identification number
for the motor side is invalid.
Hardware Problem
Power cycle the drive.
Verify the Cube ID board is properly
connected and fully seated
Check MS Drive Info in submenu U6 to verify
processor is reading the correct cube id
If re-occurs, replace Drive Control board
Note: This fault cannot be reset, unit must be
powered down before fault will clear.
Содержание Quattro DC
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