Weidmuller PMX420SERIES - Display instrument for control panel - Manual (Page 19)

19
•Installation
Caution: In order to meet product safety requirements, these units
must only be installed, by qualified staff, in accordance with the
information given in this manual, using the mounting clips and terminal
blocks supplied, and all relevant national electrical wiring and safety
rules must be followed.
Locate the instrument in an area that is free from dust, moisture and
corrosive gases. Do not cover the ventilation holes at the side of the
case.
Sensorpowersupply
The 0 V rail of the V DC sensor supply is internally connected to the
input circuit 0 V rail.
Inputsignalcable
Twisted pair cable should be used for the input signals. Voltage signals
need the additional protection of shielded cable if used over any
distance.
PowerSupplyRequirements
Check the power supply against the model number before applying
power to the instrument.
Connections
For effective protection from electromagnetic noise, all signal cables
must be shielded, or located on conductive trays or in conduits.
Use 1-8 AWG Cu Wire rated for temperatures above 0 °C Only,
tighten to . lb-In. Strip wires to mm from the ends. Use a suitable
ferrule for multistranded wires (do not solder).