Magnetek Elevator HPV1000 AC User manual

HPV1000-App_Note_12
HPV1000-App_Note_12
Position Lock Guide
Guide to set up Position Lock in the HPV1000 drive

HPV1000-App_Note_12
Position Lock Guide
POSITION LOCK SETUP GUIDE
The position lock is a function that will eliminate rollback in a lift that does NOT have a load
weighing device for pre-torque installed and connected to the drive. This function is only applicable to PM motors.
Note: If pre-torque is used, position lock will be disabled.
1. Position the lift roughly in the
middle of the lift shaft to allow free
movement in either direction
2. Put the lift on to inspection control
3. Set inspection speed to 0m/s so
that when the test buttons are
pressed the lift will run at zero
speed (this will clearly display any
movement on the sheave when
the brake lifts)
4. Make sure the following
parameters are set to match the
recommended start settings as
5. documented in the Table 1
6. Press and hold the test control
buttons (either direction) and note
of how much rollback is observed.
7. Increment PosLoc Strt Time (A1)
by increments of 0.05 sec until you
see an effect on the rollback
(either there is less rollback, the
motor rolls back then rolls forward,
or it rocks back and forth):
Note: If the motor starts to vibrate
or oscillate, dampen the speed
regulator gains PosLoc P-Gain
(A1) in steps of 5 and PosLoc I-
Time (A1) by increments of 0.5
8. Next, increase PosLoc Gain 2 by
increments of 1 until the rollback is
eliminated.
9. Set PosLoc Gain Time (A1) to
0.01.
10. Set PosLoc Decay Time (A1) to
the maximum value (This
maximum value is dependent on
the values of PosLoc Strt Time
(A1) and PosLoc Gain Time (A1),
therefore will vary dependant on
the installation)
11. The inspection speed can now be
reset to its original value and the
lift testing can be completed.
Sub-menu
Parameter Name
Default
Recommended
Starting Value
C1(P6-02)
Brake Pick CNFM
None
Internal Time
C1(P1-02)
Trq Comp Cmd Src
Disable
Disable
C5(H3-02)
Analog A1 Select
None
Neither parameter
should be set to
‘Pre-Torque’, If it is,
position lock will be
disabled.
C5(H3-10)
Analog A2 Select
None
A1(P6-06)
Brake Pick Time
0.5 sec
0.5 –1 sec
A1(S1-04)
PosLoc Strt time
0.4 sec
1.4 sec
A1(C5-19)
PosLoc P-Gain
40.00
5
A1(C5-20)
PosLoc I-Time
0.100
Default
A1(S3-01)
PosLoc Gain 1
5
Default
A1(S3-02)
PosLoc Gain 2
0.00
2
A1(S3 -04)
PosLoc Max Time
0.40 sec
Default
A1(S3-42)
PosLoc Gain Time
0.00 sec
Default
A1(S3-46)
PosLoc Decay Time
0.10 sec
Default
A1(S3-41)
PosLoc Gain Mult
0.50
Default
Table 1 –Recommended Start Settings
Diagram 1 –Position Lock Sequencing