Optidrive P2 Elevator User Guide V2.30
47
Advanced Features
www.InvertekDrives.com
14.
Advanced Features
Short Floor Operation
In a normal elevator travel profile the drive will be travelling at the Run Speed when the levelling input is received (essentially, the Run Speed
input is removed). If the levelling input (run speed input removed) is received prior to the drive having reached the Run Speed (e.g. whilst still
accelerating) the Short floor operation will work to reduce the Elevator travel time by automatically adjusting the speed to reach the floor in a
shorter time.
Normal Elevator travel profile
Run Speed Input
(Levelling input)
Short Floor profile
Short floor operation is enabled by setting parameter P3-11 to 1, once set the drive will operate as follows:
If the Output Frequency is > 40% of Run Speed when levelling Input received
In this case, the drive will hold the present output frequency for the time period calculated (Line A) based on the travel distance from Run
Speed to the present output frequency, before decelerating to the levelling speed.
Run Speed Input
(Levelling input)
If the Output Frequency Output Frequency is < 40% of Run Speed when levelling Input received
In this case, the drive will accelerate to 40% of the Run Speed, and maintain this frequency for a time period calculated (Line A) based on the
travel distance from Run Speed to the present output frequency, before decelerating to the levelling speed.
Run Speed Input
(Levelling input)
Normal Run Speed
Speed
Time
Levelling Speed
Speed
Time
Levelling Speed
Speed
Time
Levelling Speed
Normal Run Speed
Normal Run Speed
A
40%
40%
A
