User`s manual

90 • Vacon apfiff09 marine
Tel. +358
6
P2.2.9.6 Torque Select ID1278 Torque Select
This parameter defines the speed limiting mode in torque control mode. This parameter
can be used as single motor control mode selection when no change is made between
open loop and closed loop controls.
- Speed control mode
The drive is forced to operate in speed control mode while the motor control mode
parameter is set to torque control mode thus allowing selection of speed control and
torque control mode with single parameter e.g. from Fieldbus.
1= - Positive and negative frequency limits
Speed is not limited by speed reference, only maximum frequency or Positive and
Negative frequency limit if set lower than maximum frequency parameter.
speed controller active
speed controller active
P Pos Freq Limit
P Neg Freq Limit
Time
Drive in Torque Control
Drive in Torque Control
Speed
[RPM]
2= Ramp output for both directions
Speed is limited by reference after ramp generator, thus speed will increase with set
ramp time until actual torque is equal to reference torque. If speed is below reference
when load is removed from the shaft the speed will increase without ramp.
This is the default selection. For master follower system it is recommended to use
selection that allows a little higher reference for torque follower that load will be
balanced equally e.g. window control.
speed controller active
Speed controller active
P
Neg Speed Limit
t
R FreqRampOut
Speed controller active
Speed
[RPM]
Drive in Torque Control
Drive in Torque Control
P Pos Freq Limit
FW FreqRampOut
Ramp Generator Out
Speed controller active