B&R ACOPOSinverter P84, User Manual

Page: 285 / 405

Programming guidelines
ACOPOSinverter P84 User's Manual 2.10 285
2.8.11.35 Interim level
The "interim level" function is for elevator applications.
If an elevator travels between floors and interim levels, the cycle time for interim levels may be too long if the
elevator has no time to reach the full speed before passing the braking limit switch. This leads to an unnecessarily
long braking time.
The "interim level" function can be used to compensate for this by no braking being triggered before the speed
reaches a preset threshold [v- interim level] (HLS) so that the last part of the journey is the same as for a standard
floor.
The following diagrams illustrate the various operating scenarios with and without the function:
Frequency
[v-interim level]
(HLS)
Distance
Distance
Distance
Normal floor
Frequency
frequency
Frequency
[v-interim level]
(interim level speed) (HSL)
Slowdown
frequency
Slowdown
frequency
Interim level
with function
Slowdown
Interim level
without function
The function is only activated if the braking limit switch is triggered and the motor frequency remains under the
value [v-interim level] (HLS) . The acceleration is carried out before the braking until this value is attained. The
last part of the journey is identical to that of the standard floor.
[INTERIM LEVEL] (HFF-)
Code Name/Description Factory settings
HFF- [INTERIM LEVEL]
HLS [v-interim level] [No] (nO)
Activation and adjustment of the "interim level" function. This function has priority over all frequency reference functions (for example preset
frequencies) with the exception of functions generated via faults (for example, fallback frequency).
nO
[No]
(nO) : Function not active.
- 0.1 Hz to 500.0 Hz : Activation of the function by setting the motor frequency to be achieved before the braking.