LEROY-SOMER
Variable speed motors and geared motors
4.10.1 - Description of operation of the faster/slower command: Configuration 7
This function is used to stabilise the speed at all levels between min. speed and max. speed.
The command operates by means of two contacts:
- a Run/Stop, Forward or Reverse contact which is used for starting up to a min. speed, and for maintaining intermediate speeds
- an acceleration contact which is used to reach the max. speed.
An additional input on terminal 2 is used to reduce the max. speed. The faster/slower function can be used at any point down to
min. speed.
Diagram:
Max.
speed
Min.
speed
1
S2 or S3
maintain
speed input
0
1
S1 acceleration
input
0
Parameter settings:
Enable dynamic control
Configuration
Min. speed
Max. speed
Acceleration ramps
Deceleration ramp
Reduction of max. speed
PARAMETER SETTING MANUAL
VARMECA 20
WIRING DIAGRAMS
CDC - VMA 20 parameters
P60 = ON
P14 = Config. 7
P01 Fmin
P02 Ref 0V
P03 Fmax
P04 Ref 10V
P05 accel ramp
P06 decel ramp
P15 VP1-1
Speed
PEGASE VMA 20
Dynamic control
Terminal block configuration = config. 7
Fmin
Min. reference calibration
Fmax
Max. reference calibration
Accel
Decel
VP1 option 1-4
3532 - 05.2004 / f
Time
Setting
ON / OFF
6 to Fmax
0 to Fmin
32 to 100 Hz
Equals Fmax
0 to 40s
0 to 40s
6 to Fmax
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