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PARAMETER SETTING MANUAL
VARMECA 20
Variable speed motors and geared motors
WIRING DIAGRAMS
LEROY-SOMER
3532 - 05.2004 / f
4.8 - Configuration 5: Regulation of a pressure with the integrated PI loop - PI
reference using local or external reference - 2 running directions (VMA A20 only)
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
Analogue input = pressure sensor feedback
0-10V or 4-20mA
3
24VDC, 30mA - Sensor power supply
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
Selection of preset analogue reference or digital
reference logic input
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
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
0V
+10V
+24V
0/10V or
Stop/Reverse
Stop/Forward
Selection of preset
pressure VP5 or
analogue reference
Fault relay
VARMECA 20
QS
KM1
SB2
KM1
SB1
AU
Remote control
power supply
Mains
power supply
KM1
Braking
resistor
(Optional)
S1
SA4
SA3
PI input
PI ref
RP1
Enable
Pressure
sensor
4-20mA
Associated parameter setting (other indications Page 34)
For other parameter settings see sections 2 and 3.
CDC-VMA 20
PEGASE VMA 20
P14 = Config. 5
Terminal block configuration = Config. 5
P21 = PI - K PROPOR.
PI = K PROPOR.
P22 = PI - K INTEGR.
PI = K INTEGR.
P50 = T1 - P min
T1 pump draining
P51 = P - min
P1 pump draining
P52 = T2-F - min
T2 pump stop on Fmin
P54 = PI DECAL
Instability
P55 = REF.PI
Sensor reference
P56 = INPUT PI
Sensor feedback
P57 = ALARM
Alarm
P58 = VP5
VP5
P59 = BAR FACTOR
K
Sensor feedback
Mini Dip K2
0 -10V
ON
4 -20mA
OFF
Analogue reference
K1
0 -10V
ON
4 -20mA
OFF
Reference selection
S1
Analogue
ON
Digital VP5
OFF
