Magnetek Quattro DC Elevator Drive Benutzerhandbuch

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Quattro DC Troubleshooting 
 
Name Description 
Possible Causes & Corrective Action 
Brk Pick Flt 
 
The brake pick command and 
the brake feedback did not 
match for the time specified 
with Brake Pick Time 
parameter.   
 
Check Parameter Settings 
 
 
Check the correct logic input is configured for 
the correct TB1 terminal and set to MECH 
BRK PICK (C2) 
 
Check BRAKE PICK SRC (C1) parameter for 
the correct source of brake pick feedback 
 
Check BRAKE PICK TIME (A1) parameter for 
the correct brake hold time 
 
Wrong assignment of Normally Closed contact 
mask (C2) 
 
Increase BRAKE PICK TIME (A1) 
Verify Brake Settings 
 
If drive is controlling brake, verify a logic output 
is set to BRAKE PICK (C3) 
 
Check for an open circuit between the brake 
pick pilot relay and the logic output assigned to 
brake pick control 
Mechanical Brake Pick Signal Wiring 
 
Defective Brake Pick Coil 
 
Defective Brake Pick Auxiliary contactor used 
for sensing the brake state 
If nuisance fault, the fault can be disabled by BRK 
PICK FLT ENA (C1) parameter. 
Check Setup 
This fault is logged when a 
new program is loaded to the 
motor side processor, and the 
default data is loaded for the 
parameter values. 
Invalid Parameter Setup 
 
This is an advisory fault indicating that the user 
should verify the drive’s parameters 
 
Or upload a valid parameter set using 
Magnetek Explorer 
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 in the 
allowed time while running 
Bad message checksum – 
Drive has detected too many 
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. 
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 
Connector Off 
The power interface board has 
detected a missing or loose 
connector on the motor side. 
Missing Connector 
 
Verify connectors are connected 
 
Verify connectors are properly seated 
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