Discrete input wiring connections – Hach-Lange POLYMETRON 9500 User Manual User Manual
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Discrete input wiring connections
W A R N I N G
Potential Electrocution Hazard. Always disconnect power to the instrument when making electrical connections.
W A R N I N G
Potential electrocution hazard. In order to maintain the NEMA/IP environmental ratings of the enclosure, use only
conduit fittings and cable glands rated for at least NEMA 4X/IP66 to route cables in to the instrument.
Three discrete inputs are provided for switch closure inputs or logic level voltage inputs. Make wiring
connections and configure jumper settings to the controller as shown in
and
.
shows the back of the controller cover and not the inside of the main controller compartment.
Figure 9 Discrete input wiring connections
Table 4 Input connections
Discrete inputs
Connector position - Switch input
Connector position - Voltage
input
Input 1+
3
2
Input 1-
2
3
Input 2+
6
5
Input 2-
5
6
Input 3+
8
7
Input 3-
7
8
18 English