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1SFC101047M9701
General
GAF-Contactors are fitted with an electronic coil interface. For a given coil,
this interface allows the contactor to accept a very wide voltage range.
The Contactor can also be controlled by separate logic control signals from
for instance a PLC. Selection of control method is done with switch S1.
Control by svitching voltage on A1 and A2 requires the switch in position B
while control with logic signals requires the switch in position A. Use of the
logic control signals also requires a steady supply voltage on A1 and A2
within the rated voltage range.
Control by switching voltage on A1 and A2 (switch S1 in
position B, default factory setting).
Operation of GAF-Contactors can be done as with conventional contactors
by applying and removing voltage on A1 and A2.
Control with logic control signals (switch S1 i position a)
Use of the logic control signals also requires a steady voltage on terminals
A1 and A2 within the operational limits. Minimum pulse length for opening
and closing: 7 ms. The function of the logic control signals will no longer be
guaranteed when the voltage on A1 and A2 is removed. The logic control
signals operates with 24 V DC and consist of two control signals (ON and
OFF_N) and a common reference (COM).
+24V
Start
0V
Note: Emergency stop should disconnect A1 and A2
When used with switches the wiring can be done
according to the following diagram.
The functions are descibed with following diagram. "1" means 24 V DC
between the control signal and COM, "0" means no voltage between the
control signal and COM. The function is made so that ON and OFF_N can
be connected in parallel fo r a common ON/OFF signal. In addition to these
signals the function limits for the supply voltage are still valid (closing at
77% and opening at 55%), which is indicated in the diagram by high and
low voltage.
Supply voltage
A1
A2
X5
Contactor
ON
1
Stop
OFF_N
2
COM
3
Position
Contactor
closed
Contactor
open
77% of lower range level
55% of lower voltage range level
ON
OFF_N COM
S1
X5
1
2
3
+24V
Start
Stop_n
0V
Note: Emergency stop should disconnect A1 and A2
When used with transistor outputs the wiring can be done
according to the following diagram.
24V DC Signals:
Status "1" : U=15...33V DC
I =10mA at 24V DC
Status "0" : U=0...5V DC
1
ON
0
1
OFF_N
0
1
Supply voltage
on A1 and A2
0
Closed
Position
Open
Control
voltage
Low
High
Normal range
Operational limits
PLC
X 5
O N
1
O N
2
O F
F _
3
C O
S 1
M
A
P L
B
C
PLC
PLC
P L
C
A
B
Supply voltage
A1
A2
X5
Contactor
ON
1
OFF_N
2
COM
3
3/7
N
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