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PARAMETER SETTING MANUAL
VARMECA 20
Variable speed motors and geared motors
WIRING DIAGRAMS
LEROY-SOMER
3532 - 05.2004 / f
en
4.6 - Configuration 3: Correction of an external reference using the speed control
knob or Local/Remote command
Marking
Functions - Characteristics
Connection of protected mains supply phases
L1, L2 or 200V to 240V ± 10% 50-60Hz in single-phase
L1, L2, L3 220V to 480V ± 10%, 50-60Hz in three-phase
PE
Earth connection
R1, R2
Connection of the braking resistor (optional)
VMA21 - min. resistance value = 200 Ohms
VMA22 - min. resistance value = 200 Ohms
1
Locking logic input
Terminals 1 and 3 not connected: drive disabled
Terminals 1 and 3 connected: drive enabled
2
External reference analogue input
0-10V, 4-20mA
3
24VDC, 30mA
Common at terminal 10
4
10V, 10mA
5
0 V
6
Reference input 0 to +10V or 4-20mA
0-10V: input impedance = 100kOhms
4-20mA: input impedance = 0.5kOhms
7
Reverse/Stop logic input
8
Forward/Stop logic input
9
Logic input - Enable/Disable - Correction
S1 open: correction possible
S1 closed: no correction
10
24VDC, 30mA
Common at terminal 3
11, 12
Fault relay - volt-free contact 250V 1A
Contact open: switched off or faulty
Contact closed: running
1
2
B
A
3
4
L1
L2
L3
R1
R2
PE
5
6
7
8
9
10
+24V
11
12
QS : Fused isolator
AU : Emergency stop
SB1 : Off button
SB2 : On button
Local
control
knob
0V
0V
+10V
+24V
Run reverse
Run forward
Enable/Disable
local control knob
Fault relay
VARMECA 20
QS
KM1
SB2
KM1
SB1
AU
Remote control
power supply
Mains
power supply
KM1
Potentiometer or
external reference
0-10V/4-20mA
Braking
resistor
(Optional)
S1
Correction of an external reference via the local control knob
1
2
3
4
5
6
7
8
9
10
+24V
11
12
Local
control
knob
0V
+10V
+24V
S2
Run reverse
Remote
reference
Local/Remote
Run forward
Enable/Disable
local control knob
Fault relay
S1
Local/Remote speed control
Type of operation
S1
S2
Correction
Correction possible
0
of a reference
No correction
1
Local/
Local control
0
B
Remote
Remote control
1
A
Associated parameter setting
For other parameter settings see sections 2 and 3.
CDC-VMA 20
PEGASE VMA 20
P14 = Config. 3
Terminal block configuration = Config. 3
Reference
Mini Dip K2
0 -10V
ON
4 -20mA
OFF
