Magnetek Elevator Quattro DC - Page 119

Quattro DC Troubleshooting
117
Name Description
Possible Causes & Corrective Action
PCU data Flt
PCU parameters checksum is
invalid on the motor side.
Parameters Corrupted
 Check parameters and power cycle
 Change one parameter, then set back and
cycle power.
 Change control boards
Power On
Annunciation that the drive has
successfully powered up
No Corrective Action needed
Ready, Waiting
For Drive
(operator)
The operator is waiting to
establish communications with
the drive’s control board.
Normal, if displayed momentarily
 No action is required, if the message
disappears shortly after power-up of the
operator
Bad Connector Connection
 Remove and re-seat the operator in its cradle
 If re-seating of the operator does not work, the
operator may need to be replaced
Reverse Tach
See ENCODER FLT See ENCODER FLT
 Note: This fault cannot be reset, unit must be
powered down before fault will clear.
S-Chain Event
(alarm)
Elevator Safety Chain opened
while the drive was running.
Safety Chain Problem
 Safety Chain was opened during a run
 Verify correct Safety-Chain operation and
timing
Safe off Opn
Safe off input is located on the
customer interface board, TB2-
7 to TB2-14.
 If the “Safe-Off” input is
open and the drive is in
the ready state, but
has a run command
active, then “Safe-Off
Open” will be declared
after 1 second (But the
IGBTs will be disabled
immediately)
If the “Safe-Off” input becomes
open while the drive is in a run
condition, “Safe-Off Open” will
be declared after 50ms (But the
IGBTs will be disabled
immediately).
Check Connections
 Verify external contact between TB2-7 and
TB2-14 is closed
 Verify +24VDC is present on pin TB2-7
 Check the cable from A6JC3 to A4JP9
 Verify external contact between TB2-7 and
TB2-14 is closed during auto-tune.
Setup Fault 4
This fault is declared if the
contract motor speed (in rpm),
encoder pulses/revolution, and
encoder/motor ratio do not
satisfy the following equations:
65
1018
mult
ratio
enc
pulses
encoder
spdmtr
contract
103.6 
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70032,
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mult
ratio
enc
pulses
encoder
Check Parameters Settings:
 Check ENCODER PULSES (A1) parameter
for correct setting
 Check CONTRACT MTR SPD (A1) parameter
for correct setting
Check ENC RATIO MULT (A1) parameter for
correct setting