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External Connection Diagram (1) (8-point inputs, 16-point outputs)
Pin number
L
L
A17,B17,A18
+
-
B18,A19
DC12/24V
(12/24VDC)
*1: A fuse-blown error will also be displayed when the external supply power
switches off.
*2: The fuse in the output unit is provided to prevent the external wiring from
burning out if the outputs of the unit are shorted.
Therefore, it may not protect the output elements.
The fuse may not be blown if the output elements are damaged in the fault
mode other than a short circuit.
R R
B4
XD0
A4
XD1
B3
XD2
A3
XD3
B2
XD4
A2
XD5
B1
XD6
A1
XD7
B8
XSCN0
A8
XSCN1
B7
XSCN2
A7
XSCN3
B6
XSCN4
A6
XSCN5
B5
XSCN6
A5
XSCN7
B16
YD0
A16
YD1
B15
YD2
A15
YD3
B14
YD4
A14
YD5
B13
YD6
A13
YD7
B12
YD8
A12
YD9
B11
YD10
A11
YD11
B10
YD12
A10
YD13
B9
YD14
A9
YD15
Internal
control
circuit
R
Internal
control
circuit
R
Internal
control
circuit
Fuse-blown
detector
circuit
5
Internal
scan is
made at
1/8 duty.
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