Page 7/28
Installation
4
Installation
When installing and operating the VISY-Command central unit, the requirements
of the Explosion Protection Regulations, the Industrial Health and Safety Regula-
tions and the Equipment Safety Regulations as well as generally accepted rules of
engineering and these operating instructions must be observed.
Observe also the local safety and accident prevention regulations, which are not
stated in these operating instructions.
Wiring work may only be performed with the power disconnected.
4.1
Assembly
The VISY-Command central unit must be securely mounted on a wall inside a building.
The VISY-Command central unit is not suitable for outdoor installation.
For mounting the case, the VISY-Command contains the relevant drilling tem-
plate.
4.1.1
Sensor connections
4.1.2
VISY-Command
–
wired version (standard)
Connect the filling level and environmental sensors to the sensor terminal block on the VP-…
board (see Figure 1 and Figure 2). To feed in the cable, please use the blue cable gland for
intrinsically safe circuits.
The maximum permitted external inductance must not exceed 40 mH and the
maximum permitted capacitance must not exceed 680 nF including the cable (see
data sheet of the used cable).
The connection cable between the sensors and VISY-Command must have the following
characteristics:
•
4-core unshielded, oil-resistant cable
•
Cable cross-section (4 x 0.5 mm² up to 100 m or 4 x 1.0 mm² up to 200 m)
•
Colour blue or marked blue (cable for intrinsically safe power circuits)
•
Maximum diameter of 10 mm to fit through the cable glands in the VISY-Command.
