■ LED-type CPU Units without Display (ZEN-@C2@@-@-V2)
CPU Units with 10 I/O Points
Left side
Front
Right side
Power supply
terminals
Input
terminals
LED indicators
LED Indicators
Name
LED
Status
Power is ON.
Expansion Unit connector
cover
Do not remove this cover until
connecting an Expansion Unit.
Output terminals
POWER
Green Lit
Battery Unit connector
(Remove the seal to connect
the Battery Unit.)
ZEN Support Software connector
(also used for Memory Cassette.)
Not lit
Green Lit
Power is OFF.
RUN
Operating
(RUN)
CPU Units with 20 I/O Points
Not lit
Lit
Not lit
Stopped
(STOP)
Left side
Front
Right side
Power supply
terminals
Input terminals
ERROR
Red
Error
occurred.
I
6
I
7
I
8
I
9
I
a
I b
Normal
20C2AR-A-V2
Q
4
Q
5
Q
6
Q7
Output terminals
Expansion Unit connector cover
Do not remove this cover until
connecting an Expansion I/O Unit.
Battery Unit connector
(Remove the seal to
connect the Battery Unit.)
ZEN Support Software connector
(also used for Memory Cassette.)
LED indicators
■ Expansion I/O Units (ZEN-8E1@@)
Left side
Front
Right side
Power supply terminals
Input terminals
Output terminals
Expansion I/O Unit connector cover
Do not remove this cover until connecting
an Expansion I/O Unit.
Expansion I/O Unit connector
Precaution when Using Expansion I/O Units:
Up to three Expansion I/O Units can be connected.
Phillips screwdriver
Flat-blade screwdriver
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.
18
Programmable Relay ZEN V2 Units
OMRON [ OMRON ELECTRONICS LLC ]
