Invertek Optidrive Elevator Quick Start Up Manual page 4

Optimising & improving travel comfort
Possible Control
Symptom Possible Corrective Actions
Cause Modes
Brake P4-01 = Increase P3-07 (Brake Release time)
release time 0-3
maybe too
short.
P4-01 = Increase P4-03 (Speed Controller
0,1,2 P-Gain)/ decrease P4-04 (Speed
1 –
Controller I-Gain)
Rollback
During
P4-01 = If Modifying PP4-03/P4-04 is not
starting
0,1,2 successful use Closed loop (With
Encoder)
P4-01 = 2 If Modifying P4-03/P4-04 is not
successful Increase value in parameter
P1-11 (V/F Mode Voltage Boost).
Brake not P4-01 = Reduce P3-07 (Brake Release time)
releasing 0,1,2
1 –
quick
Jerk Felt
enough
During
Acceleration P4-01 = Increase P3-01 (Acceleration S-Ramp
starting
time too 0,1,2 1 duration)
short
Speed Loop P4-01 = Reduce P4-03 (Speed Controller
2 – gains need 0,1 Proportional gain) & Adjust
adjusting P4-04 (Speed Controller Integral
Vibration
during gain) to reduce steady state speed
speed error.
transition
Brake P4-01 = Decrease P3-09 (brake apply speed).
coming on 0,1,2 or
3 –
too early Use motor Brake control option 2, see
Jerk Felt
10.6.2
During
Deceleration P4-01 = Increase P3-01 (Acceleration S-Ramp
stopping
time too 0,1,2 1 duration)
short
Notes
P2-02 (HighSpeed)
Higher value=faster
response/ Eliminates
steady state speed
3 –
error. Floor
Levelling-
Short
Take care when
modifying Increasing
too high could
overheat the motor
Notes
If proportional gain is
set to low the system
response will be
slow, if too high the
system could become
unstable and show
as Vibration.
Drive is P4-01 = Check drive current rating matches
reaching 0,1,2 system requirements.
current Increase P4-07(Motoring Torque
limit and Limit)/
extending P4-09 (Regen current limit)
ramp time
Speed Loop P4-01 = Increase P4-03 (Speed Controller
gains need 0,1 Proportional gain) to achieve faster
adjusting response & Adjust P4-04 (Speed
Controller Integral gain) to reduce
steady state speed error.
Motor data P4-01 = • Check that the motor nameplate
incorrect 0,1 data (P1-09, P1-10) are correct
causing Open and that an autotune has been
error Loop successful.
between • Adjust Motor rated speed
commanded (P1-10) to increase/decrease slip
and actual amount.
speed
Levelling P4-01 = Increase P3-05 (Levelling S-ramp
time too 0,1,2 duration)
short
OPTIDRIVE elevator | Quick Start-up Guide | Version 1.0
Check that
increasing P4-07/
P4-09 is in line with
the capability for the
connected motor.
If proportional gain is
set to low the system
response will be
slow, if too high the
system could become
unstable and show
as Vibration.