Harsh Environment - Honeywell temaline TK C21P Installation Manual

Harsh environment

In the harsh environment where the electromagnetic noise is very
High the connections have to be:
- LON cable = unshielded or shielded with the shield connected to
Earth in an only point and separate to the internal Ground
- Power input cable = shielded with the shield connected to Earth
in an only point and separate to the internal Ground
- Inputs cable = shielded as in the Figure 3
- Output = use direct outs only if the load is at a distance less
than 3 mt with an unshielded cable well separate to others
cables.
If the load distance is more than 3 mt use the external relays to
mount close to the RTUA01P at a distance less than 3 mt,
connected with an unshielded cable well separate to others cables.
See Figure 7
INSTALLATION Page 17