Item
V2 Units
V1 Units
Pre-V1 Units
DC inputs
I4 to I5
Input impedance 5.2 to 5.5 kΩ
5 kΩ
ON voltage
OFF voltage
8 VDC min.
3 VDC max.
16 VDC min.
5 VDC max.
150 kΩ min.
(See note 2.)
Analog inputs Input impedance 100 kΩ min.
I4 to I5
(See note 2.)
Accuracy
±1.5% FS (at ambient operating temperature within
rated range)
±10% FS (at ambient operating temperature
within rated range)
Control
outputs
Relay outputs
8 A per output
8 A per output
Total for all outputs must be as follows:
Units with 10 I/O Points: 20 A max.
(15 A max. for Communications-type CPU Units)
Units with 20 I/O Points: 40 A max.
Transistor outputs 28.8 V max.
26.4 V max.
Timing accuracy of weekly and
calendar timers
±15 s or less per month (at 25°C)
±2 min per month
Mounting direction
Standard (vertical) installation and horizontal installation Standard (vertical) installation
Terminal block tightening torque
0.565 to 0.6 N·m (5 to 5.3 in-lb)
0.5 to 0.6 N·m
Connectable Expansion I/O Units ZEN-8E1@ (See note 3.)
Case structure No heat slits
ZEN-4E@ and ZEN-8E@
Heat slits
Note: 1. Units with 20 I/O Points: I0 to I9
2. Units with 20 I/O Points: Ia to Ib
3. Refer to page 32 for details on compatible combinations of CPU Units and Expansion I/O Units.
Expansion I/O Units
Item
8E1 type
4E/8E type
Units with 4 input, 4 output, or 8 I/O points
83 kΩ
Model
Unit with 8 I/O Points
680 kΩ
AC inputs
Input impedance
Isolation
No isolation
Photocoupler
Input common
Input voltage
Input impedance
Isolation
Internally connected to power supply terminal
Independent common terminal
20.4 to 26.4 VDC
DC inputs
10.8 to 28.8 VDC
6.5 kΩ
4.7 kΩ
ZEN-8E1DR: No isolation
ZEN-8E1DT: Photocoupler
Photocoupler
ON voltage
8 VDC min.
16 VDC min.
Input common
ZEN-8E1DR: Internally connected to power supply Independent common terminal
terminal
ZEN-8E1DT: Independent common terminal
Control output Relay outputs
8 A per output
8 A per output
Total for all outputs must be as follows:
Units with 10 I/O Points: 20 A max.
Units with 20 I/O Points: 40 A max.
Transistor outputs 28.8 V max.
26.4 V max.
Mounting screws
M3 (mounting holes on DIN Track hooks)
V2 CPU Units (See note.)
90 × 35 × 56 mm
M4 (mounting holes on Unit)
V1 or Pre-V1 CPU Units
90 × 70 × 56 mm
Heat slits
Connectable CPU Unit
Dimensions (H × W × D)
Case structure
No heat slits
Note: Refer to page 32 for details on compatible combinations of CPU Units and Expansion I/O Units.
30
Programmable Relay ZEN V2 Units
OMRON [ OMRON ELECTRONICS LLC ]
