Wiring - HPP272

HPP272 User Guide
Document code
M211972EN
Revision
G
Language
English
Product
HPP272
Document type
User guide
Use shielded cables and ground the cable shield.
Figure 1. Pins on the probe M12/5 male connector
Pin # Function Notes Wire color 1
1 Power supply

With digital output: 15 ... 30 V DC

With analog output: 15 ... 25 V DC 2

 Brown
2 RS-485- or analog output 2 Current output: 4 … 20 mA 3 White
3

Power and signal GND

RS-485 common

 Blue
4 RS-485+ or analog output 1 Current output: 4…20 mA 3 Black
5 Output control and purge trigger in analog mode Floating = RS-485

Grounded = Analog outputs

If you want to be able to trigger a purge manually in the analog mode, do not connect pin #5 permanently to ground, but instead, use a relay or similar to control the pin.

Grey
Figure 2. Wiring example for connecting the probe to a PLC in analog mode
Figure 3. Wiring example for RS-485 connection (Modbus communication)
1 Wire colors apply to the following cables: 254294SP, 254295SP, 254296SP, 254297SP, 244669SP
2 When using analog outputs, it is recommended to use a low supply voltage to minimize self-heating.
3 The ordered parameters and scaling are shown in the calibration certificate delivered with the probe.