Simons Voss Technologies SmartRelais 3 Advanced Manual page 57

SimonsVoss
Manual
SmartRelais 3 Advanced
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+
1(1)
<
1(2)
2(1)
<
2(2)
+1
-
B1
A1
+2
-
B2
Controller
A2
+3
-
B3
A3
O4
O3
O2
O1
O+
I3
I2
I1
-
I+
L
N
Power
supply unit
+
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-
+
Reader
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B
A
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+
Reader
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B
A
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Reader
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B
A
External power supply
The readers (up to three readers per controller) are connected to the
controller at the designated points. The power for readers is provided from
an own power supply unit. A common reference potential is required for
data transmission between controllers and readers. As a result, the earth
6 | Setting up 57 / 135