Installation Warnings - Carel pCO5 Betriebsanleitung

INSTALLATION WARNINGS

Intended environments and connection
Avoid installing the boards in environments with the following characteristics:
• relative humidity greater than 90%;
• strong vibrations or knocks;
• exposure to continuous water sprays;
• exposure to aggressive and polluting atmospheres(e.g.: sulphur and ammonia fumes, saline mist, smoke) so as to avoid corrosion
and/or oxidation;
• strong magnetic and/or radio frequency interference (there avoid installing the units near transmitting antennae);
• exposure of the pCO5 to direct sunlight and to the elements in general;
• large and rapid fl uctuations in the room temperature;
• environments where explosives or mixes of fl ammable gases are present;
• exposure to dust (formation of corrosive patina with possible oxidation and reduction of insulation).
For connection, the following warnings must be heeded:
• power supplies other than those specifi ed may seriously damage the system;
• use cable ends suitable for the corresponding terminals. Loosen each screw and insert the cable ends, then tighten the screws
When the operation is completed, slightly tug the cables to check they are suffi ciently tight;
• separate as much as possible the probe signal and digital input cables from the inductive load and power cables to avoid possible
electromagnetic disturbance. ever run power cables (including the electrical cables) and probe signal cables in the same conduits.
Do not install the probe cables in the immediate vicinity of power devices (contactors, circuit breakers or similar);
• reduce the path of the sensor cables as much as possible, and avoid spiral paths that enclose power devices.
• avoid touching or nearly touching the electronic components fi tted on the boards to avoid electrostatic discharges (extremely
damaging) from the operator to the components;
• separate the power supply to the digital outputs from the pCO
• disconnect the controller from the power supply before performing any maintenance or assembly operations;
• if the device is used in a manner not specifi ed by the manufacturer, the rated protection of the device may be compromised.
pCO 5 does not provide protection against short-circuits and overloads, consequently suitable protection devices (2.5 AT fuses) must
be installed on the power supply lines and on the 230 Vac digital input lines (500 mAT fuse)
pCO 5 is not a device that guarantees electrical safety, but rather suitable operation: to prevent short-circuits from causing fi re in the
electrical panels, the customer must install appropriate electromechanical protection devices on the lines in question (fuses or the
like). In addition, the type of software does not guarantee electrical safety.
+0500040ML - 1.2 - 07.06.2011
5 power supply;
15
ENG