In
the case of a deceleration to stop, i.e. during stopping or a direct landing
operation, a position controller is active. This controller continuously
compares the actual position to the set position and compensates any deviations.
This is a prerequisite for an exact landing operation. By increasing the
parameter LR, the position controller can be reinforced and position deviations
can be balanced faster. If you enter 0, the position controller is switched off
completely.
Note:
An excessive gain can result in vibrations when the elevator stops
Limitation
of maximum motor current.
Proportional current regulator gain.
Note:
Change parameters only after consultation with RST Elektronik.
I-gain current regulator. This is a
parameter set in the factory
Note:
Change parameters only after consultation with RST Elektronik.
The variable of the speed controller can be
smoothened in order to obtain a smoother behaviour.
Note:
High values can result in vibration.
In case low-pulse encoders are used, the
scanning time of the speed controller can be increased in order to obtain a
better speed resolution. If the scanning time is too long, this can result in
control vibrations.
After changing the scanning time, the unit
must be switched off and on again in order for the new setting to become
effective.
Note:
Change parameters only after consultation with us.
PWM
frequency of converter
Here,
you can adjust another controller type for load take-over
Note:
Change parameters only after consultation with RST Elektronik.
Preset
load for load equilibrium: A basic torque is preset when the brake is opened
(static load compensation). This parameter is to be set in percent.
LV
= 500 means symmetrical weight equilibration, no preset torque.
Values
< 500 mean a preset torque in down direction.
Values
< 500 mean a preset torque in up direction.
A
difference of 100 equals a preset torque of 10 %.
Example:
LV
= 400 -> a preset torque of 10% in
down direction
LV
= 700 -> a preset torque of 20% in
up direction
For
more details, please refer to the VVVF controller manual.
Version 001 / Date: 07.03.2005