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PARAMETER SETTING MANUAL
VARMECA 20
Variable speed motors and geared motors
WIRING DIAGRAMS
LEROY-SOMER
3532 - 05.2004 / f
en
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:
Parameter settings:
CDC - VMA 20 parameters
PEGASE VMA 20
Setting
Enable dynamic control
P60 = ON
Dynamic control
ON / OFF
Configuration
P14 = Config. 7
Terminal block configuration = config. 7
Min. speed
P01 Fmin
Fmin
6 to Fmax
P02 Ref 0V
Min. reference calibration
0 to Fmin
Max. speed
P03 Fmax
Fmax
32 to 100 Hz
P04 Ref 10V
Max. reference calibration
Equals Fmax
Acceleration ramps
P05 accel ramp
Accel
0 to 40s
Deceleration ramp
P06 decel ramp
Decel
0 to 40s
Reduction of max. speed
P15 VP1-1
VP1 option 1-4
6 to Fmax
Max.
speed
Min.
speed
S1 acceleration
input
S2 or S3
maintain
speed input
Time
Speed
0
1
0
1