Burkert Type 8697 - Manual (Page 24)

24
Electrical installation
9.2.2. connection diagram
with three-wire proximity switches
(inductive limit switches)
terminal configuration external circuit
1
INI + (24 V DC)
Supply
4
3
2
1
Output 2
(24 V)
Output 1
(24 V)
GND
+24 V DC
2
INI GND
Supply
3
INI Top OUT
Output 1
4
INI Bottom OUT
Output 2
5
Valve control
0 / 24 V DC
5
6
0 / 24 V DC ± 10 %
Residual ripple 10 %
6
Valve control
GND
Tab. 3: Connection diagram with three-wire proximity switches
Screw terminals
1
2
3
Terminal No
4
5
6
Fig. 19: Position of the screw terminals
9.2.3. connection diagram
with two-wire proximity switches
(inductive namur limit switches)
terminal configuration external circuit
1 INI Top +
NAMUR-
Sensor
Explosion
protected area
Non-hazardous
area
+8,2 V DC
0 V
R
1 / 3
2 / 4
2)
2 INI Top -
3 INI Bottom +
4 INI Bottom -
5
Valve control
+
5
6
3)
6
Valve control
GND
Tab. 4: Connection diagram with two-wire proximity switches
2)
(Recommended by NAMUR) Observe the max. values of the
intrinsically safe circuits in the ATEX additional instructions.
3)
Signal from barrier see PTB 07 ATEX 2048
english
Type 8697