Operation With Plc Interface - Levitronix LEVIFLOW LFS-SU User Manual

4.2.3 Operation with PLC Interface

Table 8 shows the standard configuration of the electrical interface (PLC). For other configurations the
®
Levitronix Service Software shall be used (see reference on title page of this manual).
Figure 21 shows an example how to connect the flow converter to a relays to control a shutoff valve by a digital
output. Note that if a protective diode is not integrated in the relay, it must be connected additionally as shown
in Figure 21. This setup additionally shows how to connect a push-button to digital input (e.g. for reset of
volume counter, which shall be configured with Levitronix
how to connect the PLC of the converter to a Levitronix
Shutoff Valve
Push-Button
Figure 21: Controlling a shutoff valve by digital output of converter
Levitronix
Pump System
Levitronix Pump System
Figure 22: Usage of PLC of flow converter with a Levitronix
PL-4509-00, Rev09, DCO# 21-230
User Manual for LEVIFLOW
®
Service Software). Figure 22 shows an example
®
pump system.
Supply +24V
Supply GND
e.g. Relay Schrack
RY211024
Protective Diode
e.g. Diode 1N4007
Supply +24V
Supply GND
20
19
2
1
10
9
®
LFS-SU Flowmeters
www.levitronix.com
1
DC24V+
2
DC24V-
6
DigOut 1+
7
DigOut 2+
8
DigOut -
Converter LFC-1C-PC
5.1k
DC24V+
9
DigIn +
10
DigIn -
DC24V-
Leviflow LFC-1C
Converter
LFC-1C-PC
®
Converter LFC-1C
pump system
23