GB-12
Start-Up Instructions
LF.30=0 must be adjusted, if the motor shall be driven without encoder.
If the load cannot be lifted with this, increase LF.37 (torque increase).
In case of error message „E.OL2“ adjust LF.38=0 (8 kHz operating
frequency).
In case of wrong travel direction (up and down exchanged) activate
the reversal of driving direction with LF.05=1.
The driving comfort can be optimized with the following parameters:
LF.50 Starting jerk in m/s
3
LF.51 Acceleration in m/s
3
LF.52 Deceleration jerk in m/s
3
LF.53 Deceleration in m/s
3
LF.54 Stopping jerk in m/s
3
The ramps becomes steeper by increasing the values, e.g. the jerk
values becomes harder.
If the cabine rolls back when releasing the brake, increase LF.33 in
steps of 500.
If the lift at the beginning of the drive runs against the brake, increase
LF.70 (brake release time) because the brake release is not fast
enough.
The brake engage time can be increased with parameter LF.79, if the
brake is not closed after stopping when the inverter switches off the
modulation.
If the lift does not reach the rated speed during
‘empty-downward-
drive’
(display LF.90), do the following:
- Set cos phi (dr.04) to 0.9
- Decrease field weakening speed (dr.19) to approx. 2/3 of the
synchronous speed (approx. 1000 rpm with 4-pole motors; approx.
680 rpm with 6-pole motors)
- decrease rated motor speed (dr.01) in steps of 20 until the rated
speed is reached during a downward drive.
Optimization
Summary of Contents for COMBIVERT F4-F
Page 29: ......
