Magnetek Elevator HPV1000 AC Technical Manual page 47

Fault Code/Name
The torque reference and acceleration are
dv3 in opposite directions and the speed
reference and actual motor speed differ by
Reverse Tach over 30% for 10 times. Contact Magnetek
for more details.
Pulses indicate that the motor is rotating
in the opposite direction of the speed
reference for 128 pulses.
Note: It is possible to disable
dv4
Direction Flt
Contact Magnetek for details.
dv6 The acceleration/deceleration of the
elevator car exceeds the overacceleration
Over Accel Flt detection level
MAGNETEK HPV1000 AC Elevator Drive Technical Manual
Description
inverses detection in
applications where the
motor may rotate in
the opposite direction
of the speed reference.
Causes and Solutions
The encoder offset is not set properly.
• Set the Enc Z-Pulse Offs (A5) as specified on the motor nameplate.
Replacing the encoder or changing the motor/encoder rotation direction
requires readjustment of the encoder offset. Perform an alignment in U9
sub-menu.
An external force on the load side has caused the motor to move.
• Make sure the motor is rotating in the right direction.
• Look for any problems on the load side that might cause the motor to rotate
in the opposite direction.
Noise interference along the encoder cable is disturbing the encoder signals.
• Properly rewire the encoder and connect all lines including shielded line.
Encoder is disconnected, not wired properly, or the PG option card or the
encoder itself is damaged.
• Properly rewire the encoder and connect all lines including shielded line.
Rotational direction for the encoder is the opposite of the order of the motor
lines.
• Properly connect the motor lines for each phase (U/T1, V/T2, W/T3).
Swap the Motor Rotation (C1), and then perform an alignment in the U9
menu.
• Swap the Encoder connect (C1), and then perform an alignment in the U9
sub-menu.
The encoder offset is not set properly.
• Set the Enc Z-Pulse Offs (A5) as specified on the motor nameplate.
• Perform an encoder alignment in the U9 sub-menu.
• If the problem continues after cycling power, then replace either the PG
option card or the encoder itself. Replacing the encoder or changing the
motor/encoder rotation direction requires readjustment of the encoder
offset or an encoder alignment in the U9 sub-menu.
Noise interference along the encoder cable is disturbing the encoder signals.
• Make sure the motor is rotating in the correct direction.
• Look for any problems on the load side that might be causing the motor to
rotate in the opposite direction.
Encoder is disconnected, not wired properly, or the PG option card or the
encoder itself is damaged.
• Rewire the encoder and make sure all lines including shielded line are
properly connected.
• If the problem continues after cycling power, replace the PG option card or
the encoder.
The encoder offset is incorrect.
• Perform an encoder alignment in the U9 sub-menu for PM motors.
Noise along the encoder cable.
• Check the encoder wiring for any loose connections. Make sure that the
shielded line is properly grounded.
Cables for the motor encoder are not wired properly, or the PG option card (or
the encoder itself) is damaged.
• Check the encoder wiring for any loose connections. Make sure that the
shielded line is properly grounded.
Incorrect motor data has been set.
• Check the parameters in the A5 sub-menu to make sure they match the
information on the motor nameplate.
The acceleration is too fast.
• Check and adjust the acceleration rate and the jerk at acceleration start set
in the A2 sub-menu.
Incorrect setting for overacceleration
• Check and adjust the setting of PM Accel Limit (A1) so the fault is not too
sensitive.
7 Troubleshooting
45