FISCHER DE85, Руководство по эксплуатации, Страница: 11 / 28

FISCHER Mess- und Regeltechnik GmbH Assembly | 3
BA_EN_DE85 11/28
3.3 Electrical connection
• By authorized and qualified specialized personnel only.
• When the device is connected, national and international electrotechnical
regulations must be observed.
• Disconnect the system from the mains before electrically connecting the
device.
• Do not connect the device when it is live.
Cable screw connection
Depending on the version, a 3-pin or 5-pin print terminal is fitted. All versions
except Modbus have analogue output.
The data for the connection cable is stated in the section Construction design
[
}
20] of the technical data.
Model Print terminal
2-wire 3-pin
3-wire 3-pin
Modbus RTU (RS485) 5-pin
M12 plug
Models with an M12 connector are connected ex-works to the print terminal with
a prefabricated cable. The pin assignment for the plug connector is stated in the
following wiring diagrams.
3.3.1 2-wire
+
5 6 7
+
Δp
p2
p1
+U
b
-U
b
24 V DC
7
6
Output
DE88 Auxiliary energy
-U
b
+U
b
+U
b
-U
b
1
3
2
4
Fig. 7: Electrical connection 2-wire
3.3.2 3-wire
+
+
Δp
p2
p1
+U
b
-U
b
24 V AC/DC
7
6
Output
+Aout 1
5
+Aout 1
(~)
(~)
DE85 Auxiliary energy
+U
b
-U
b
+U
b
-U
b
5 6 7
1
3
2
4
Fig. 8: Electrical connection 3-wire