Vega WHA-GW-WIRELESSHART GATEWAY Bedienungsanleitung Seite 31

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WHA-GW-*
Installation
221981 2011-07
31
3.6 Connecting to Power Supply and Grounding
There are two 24 V dc power supply terminal blocks located inside the Gateway, allowing
for redundant power supply. Open the housing cover to access the terminal blocks.
Figure 3.12Power supply
Connecting to Power Supply and Grounding
1. Connect one of the grounding terminals to a ground wire (see Figure 3.12 on page 31).
2. Unscrew the 4 screws of the housing cover (see Figure 3.6 on page 23).
3. Remove the housing cover.
4. Ensure that appropriate power is supplied.
5. Draw the power cable through the second cable gland from right (see Figure 2.5 on
page 17). The permissible cable diameter lies between 6 ... 10 mm.
6. Connect the power cable to the first power supply connection "Line 1" observing polarity
(see Figure 3.12 on page 31).
Danger!
Explosion hazard in Zone 2 when operating powered Gateway
If the Gateway is installed in Zone 2 and connected to power, there is an explosion hazard
when operating DIP switches, buttons or connecting/disconnecting cables.
The operation of DIP switches/buttons and the connection/disconnection of any cables in
Zone 2 is only permitted in the absence of a hazardous atmosphere or if the device is
disconnected from power!
Note!
Tension relief and bending radii
Ensure sufficient relief of tension on the cables during installation and note the minimum
bending radii of the cables.
1 First power supply connection
2 Second (redundant) power supply connection
3 Grounding terminals
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