Burkert Type 8690 - Manual (Page 23)

23
Electricalinstallation
9.2.2 connection diagram
with three-wire proximity switches
(inductive limit switches)
terminal configuration external circuit
1
INI - (GND)
Supply
2
1
3
4
Output 1 (24 V)
GND
Output 2 (24 V)
+24 V DC
2
INI 1 OUT
Output
3
INI 2 OUT
Output
4
INI + (24 V DC)
Supply
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
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
3)
2 INI Top -
3 INI Bottom +
4 INI Bottom -
5
Valve control
+
5
6
4)
6
Valve control
GND
Tab. 4: Connection diagram with two-wire proximity switches
3)
(recommended by NAMUR) Also observe the type-examination certificate
from Turck KEMA 02 ATEX 1090X
4)
Signal from barrier see PTB 07 ATEX 2048
english
Type 8690