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• The devices do not have to be connected in any particular order, maintaining the polarities indicated on the terminals. Linear type connections (figure 1), star type
connections (figure 2) or mixed connections (figure 3) are possible (the rectangle in the figures represents the power supply). The ideal configuration is the linear type with
only one power supply in the middle of the system, or two power supplies at the ends of the bus cable.
POWER SUPPLY
Fig. 1
POWER SUPPLY
Fig. 2
• For the connections use a VIMAR 01840 sheathed and twisted pair (2x0.5 mm
voltage (29 V d.c.) and the device control signals, and can be placed inside the same corrugated pipe that carries the electrical mains cables.
Bus length: general rules.
2.2
• Maximum length of the bus cable: 1000 m.
• Maximum distance between power supply and device: 350 m.
POWER SUPPLY
350 m
• Optimum position of each power supply: at the centre of the BUS line.
DEVICE
350 m
• Maximum distance between two devices: 700 m.
DEVICE
• Minimum distance between two power supplies: 40 m (loads must be balanced between the two power supplies).
It is important for the load to be well distributed between the two power supplies; the two power supplies should be placed at the ends of the one of the circuits of the system
that has the largest number of devices or branches.
DEVICE
POWER SUPPLY
250 m
• Optimum position of two power supplies: at the ends of the BUS line
• Minimum voltage on the furthest device: 23 V d.c. (at rest)
Putting the system into service.
2.3
1. Lay out the bus cable and connecting terminals, maintaining the correct polarities.
2. Lay out the cable for the electrical connections of the actuators.
3. Wire the control panel, components and power supply.
4. Power up the system.
All manuals and user guides at all-guides.com
POWER SUPPLY
DEVICE
POWER SUPPLY
350 m
700 m
500 m
POWER SUPPLY
Fig. 3
, nominal insulation voltage 300/500 V). The wire pair distributes both the power supply
2
DEVICE
DEVICE
POWER SUPPLY
DEVICE
250 m
Connection terminal
Vimar 01840 twisted pair
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