9.2.2. Connection diagram
with three-wire proximity switches
(inductive limit switches)
Terminal Configuration
INI + (24 V DC)
1
Supply
INI GND
2
Supply
INI Top
OUT
3
Output 1
INI Bottom OUT
4
Output 2
Valve control
5
0 / 24 V DC
Valve control
6
GND
Tab. 3:
Connection diagram with three-wire proximity switches
Screw terminals
Fig. 20: Position of the screw terminals
24
External circuit
3
Output 1
(24 V)
4
Output 2
(24 V)
2
GND
1
+24 V DC
5
0 / 24 V DC ± 10 %
Residual ripple 10 %
6
1
2
3
4
5
6
english
Type 8697
Electricalinstallation
9.2.3. Connection diagram
with two-wire proximity switches
(inductive NAMUR limit switches)
Terminal Configuration External circuit
1
INI Top +
protected area
2
INI Top -
3
INI Bottom +
4
INI Bottom -
Valve control
5
+
protected area
Valve control
6
GND
Tab. 4:
Connection diagram with two-wire proximity switches
(Recommended by NAMUR) Observe the max. values of the intrinsically
4)
safe circuits in the ATEX additional instructions.
Signal from barrier see PTB 07 ATEX 2048
5)
Explosion
Non-hazardous
area
1 / 3
+8,2 V DC
2 / 4
NAMUR-
Sensor
R
0 V
Explosion
Non-hazardous
area
Safety barrier
5
+
6
PA
4)
5)