Closed Loop Control (Pmsm And Im) - Fuji Electric Frenic lift Starting Manual

Early brake closing
DC brake reaction too
HIT AT
strong
STOPPING
Deceleration ramp too
fast
Not related to inverters
setting
Late brake closing
DC brake reaction too
soft
ROLLBACK
Insufficient torque
Not related to inverters
setting
LANDING
Incorrect slip frequency
ACCURACY
(STOPPING
DEPENDING
Insufficient torque
ON THE
LOAD)
Different landing
accuracy (braking,
driving)

14.2 Closed loop control (PMSM and IM)

ULC gains and times (ASR, APR)
ROLLBACK
Brake opening too early
Late brake opening
Due to too early start
HIT AT
STARTING
ULC gains and times (ASR, APR)
Not related to inverters setting
TROUBLESHOOTING (Stopping)
CAUSE
Increase L83
Max. L83=F22 - Brake reaction time
Reduce F21
Min. F21=50%
Increase deceleration ramp (i.e. E15)
The maximum value depends on the lift magnets
Check security chain
Check brake operation
CAUSE
Reduce L83
Increase F21
Max. F21=90%
Check F22≠0.00s
Increase P06
P06= 30~70% of P03
Increase F09
Max. F09=5.0 %
Check security chain operation (EN signal)
Check brake operation
CAUSE
Perform Auto tuning (P04=2)
Calculate slip frequency manually
P 12
=
Increase P06
P06=30~70% of P03
Stopping too early (driving mode): Increase P09
Stopping too late (driving mode): Decrease P09
TROUBLESHOOTING (Starting)
CAUSE
CAUSE
Page 31 of 35
ACTION
ACTION
ACTION
( Synchronou s _ speed ( rpm )
−
Synchronou
Make sure ULC control is active
L65 = 1
ASR Not strong enough
L68= Add 1.0 to current value (PMSM)
L68= Add 10.0 to current value (IM)
L69= Subtract 0.001 to current value (PMSM&IM)
Be careful that a value too high on L68 (P) or a value
too low on L69 (I) may cause vibrations
APR Not strong enough
L73= Add 1.0 to current value (PMSM)
L74= Add 1.0 to current value (PMSM)
Be careful that a value too high on L73 and L74 may
cause vibrations
Increase L82
Min. L82=0.2s
Max. L82=F24 – Brake reaction time
reduce L82
Min. F24=0.2 s
Increase F24
Reference value F24 = 1.0 s
ASR Too strong
L68= Subtract 1.0 to current value (PMSM)
L68= Subtract 10.0 to current value (IM)
L69= Add 0.001 to current value (PMSM&IM)
Be careful that a value too low on L68 (P) or a value too
high on L69 (I) may cause rollback
APR Too strong
L73= Subtract 1.0 to current value (PMSM)
L74= Subtract 1.0 to current value (PMSM)
Check brake operation
Check guides (oil, alignment, etc.)
Check car fixation (shoes)
Rated _ speed ( rpm )) Nom _ Frequency
×
s _ speed ( rpm )
ACTION
ACTION
Fuji Electric Europe GmbH