ZEN V2 Units
18
■ LED-type CPU Units without Display (ZEN-@C2@@-@-V2)
■ Expansion I/O Units (ZEN-8E1@@)
Precaution when Using Expansion I/O Units:
Up to three Expansion I/O Units can be connected.
When removing the Expansion Unit connector cover from the side of the CPU Unit, use a
Phillips screwdriver to remove the cover screw, and then insert a flat-blade screw driver in
the cover gap to remove the cover, as shown at the right.
Left side Front Right side
LED indicators
Power supply
terminals
Input
terminals
Output terminals
Battery Unit connector
(Remove the seal to connect
the Battery Unit.)
ZEN Support Software connector
(also used for Memory Cassette.)
Expansion Unit connector
cover
Do not remove this cover until
connecting an Expansion Unit.
LED indicators
Front
Left side Right side
Power supply
terminals
Input terminals
Output terminals
Battery Unit connector
(Remove the seal to
connect the Battery Unit.)
ZEN Support Software connector
(also used for Memory Cassette.)
Expansion Unit connector cover
Do not remove this cover until
connecting an Expansion I/O
Unit.
I
6
I
7
I
8
I
9
I
a
I
b
20C2AR-A-V2
Q
4
Q
6
Q
5
Q
7
CPU Units with 10 I/O Points
CPU Units with 20 I/O Points
LED Indicators
Name LED Status
POWER Green Lit Power is ON.
Not lit Power is OFF.
RUN Green Lit Operating
(RUN)
Not lit Stopped
(STOP)
ERROR Red Lit Error
occurred.
Not lit Normal
Left side Front Right side
Input terminals
Power supply terminals
Output terminals
Expansion I/O Unit connector
Expansion I/O Unit connector cover
Do not remove this cover until connecting
an Expansion
I/O Unit.
Phillips screwdriver
Flat-blade screwdriver
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