WirelessHART Fieldgate SWG70 Instructions d'exploitation Page 23

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WirelessHART Fieldgate SWG70 5 Electrical Installation
Endress+Hauser 21
5.2 Connecting to power supply and grounding
There are two 24 VDC power supply terminal blocks located inside Fieldgate SWG70, allowing for
redundant power supply. Open the housing cover to access the terminal blocks.
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.
Fig. 5-2: Power supply
Connecting to 24 VDC
power supply and
grounding
Fieldgate SWG70 must be connected to a 24 VDC (20 VDC – 30 VDC) power supply
1 Connect the grounding terminal to a ground wire.
2 Unscrew the 4 screws of the housing cover (see Fig. 4-5 in Chapter 4.2) and remove the
housing cover.
3 Route the 24 VDC power cable through the second cable gland from right
The permissible cable diameter lies between 6 mm and 10 mm.
4 Connect the 24 VDC power cable to the first power supply connection "Line 1" observing
polarity (see Fig. 5-1 above).
5 If you want to connect a redundant power supply (optional), route the second 24 VDC power
cable through the cable gland on the far right of the housing.
6 Connect the second power cable to the second power supply connection "Line 2"
observing polarity .
7 Switch on the power: the green power LED should light immediately.
8 Tighten the cable gland with appropriate torque, see Chapter 5.5.
9 Switch off the power before making any more connections.
1 First power supply connection 3 Grounding terminals
2 Second (redundant) power supply
connection
1
2
KL14
KL15 KL16
KL17
+24V +24V0V 0V
LINE1
LINE2
+24V +24V0V 0V
LINE1 LINE2
A
B
SHD
RS485
T1
T2
RX–
RX+
TX–
TX+
ON
OFF
SHD
A
B
SHD
RS485
ETHERNET
3 3
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