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FCP manual
Code +030220391 – rel 1.1 07/11/06 9
3. Installation
To install the controller, proceed as follows, with reference to the connection diagrams shown at the end of the manual.
Important: 230 Vac mains voltage present on the board
.
The controller may be installed outside but paying attention to the following instructions:
•
Connect the power supply:
Fit a 10A T (or lower rating) fuse in the power supply line (live L), based on the maximum current expected.
•
Connect the probes and control signals: the probes can be installed at a maximum distance of 10 m from the controller, as long as cables with a minimum
cross-section of 1 mm 2 are used. To improve immunity to disturbance, use shielded cables (connect just one end of the shield to the earth).
•
Program the instrument: for a more detailed description see the chapter “Programming the instruments”.
• Connect the load: the load should only be connected after having programmed the controller. In this regard, the maximum current indicated in the “technical
specifications” must be considered. The load may be made up of multiple fans in parallel, as long as the maximum capacity is not exceeded.
If the controller is used in residential environments (IEC-EN55014-1) a shielded cable must be used.
•
Connect to the serial network: the controller is fitted with a connector for housing a serial interface board, FCSER00000, for connection to the supervisor
network. Use a shielded cable with the shield connected to GNX.
WARNINGS:
The controller must be installed so as to ensure normal cooling, according to the flow of air. Normally, if there are no cooling fans, it is installed vertically, with the
cable outlets downwards.
The temperature of the surface the control is mounted on must not exceed 70° C.
The index of protection is guaranteed only if the following precautions are heeded:
•
make sure that the cable glands are fitted with the conical part on the inside
•
only use one cable with a diameter between 7 and 10 mm in each cable gland.
•
pass the cable through the cable gland as shown in Figure 3.a
• if the installation requires a cable with a diameter of less than 7 mm, or more than one cable in the same cable gland, it is the installer’s responsibility to
guarantee the appropriate index of protection; for example, using a sheath to increase the thickness or to hold the cables together, making sure there are
not gaps.
1) Perforate the membrane with the cable or with a
screwdriver and push the cable through the hole 2) Pull the cable slightly backwards to secure it
Fig. 3.a
The power supplies of the FCPM082A10 (power expansion) and the corresponding control device must be connected to the same phases.
Do not use the terminals on the controller to connect the power supply to other devices.
The maximum length of the connection cables is 10m except where specified otherwise.
Size the cross-section of the power wires based on the current input of the load and the length of the cables.
If a shielded cable is used to connect the load, both ends of the shield should be earthed.
On the controller side, the shield should be earthed using a metal cable clamp screwed to the earth bar before the terminals (Fig.3.b).
Fig. 3.b