zen-20c2dt-d-v2 Omron Corporation, zen-20c2dt-d-v2 Datasheet - Page 12

• Manufacturer Part Number: zen-20c2dt-d-v2
• Description: Programmable Relay
• Manufacturer: Omron Corporation

Connections
■ Input Connections
Units with AC Power Supply
Note: 1. Supply power to both the CPU Unit and Expansion I/O Units from the same power supply and turn them ON and OFF at the same time.
CPU Units with 10 I/O Points and Expansion I/O Units
CPU Units with 20 I/O Points and Expansion I/O Units
Connecting Expansion I/O Units with DC Inputs
Note: When connecting Expansion I/O Units with DC inputs to a CPU Unit with an AC power supply, the burst noise immunity will be 1 kV
100 to 240 VAC, 50/60 Hz
Circuit
protector
100 to 240 VAC, 50/60 Hz
Circuit
protector
Circuit
protector
2. The input circuit commons for CPU Units with AC power supply are internally connected to the N terminal of the power supply circuit.
3. The input circuit commons for Expansion I/O Units with AC power supply are internally connected to the N terminal of the power supply
(IEC 61000-4-4).
CPU Unit with 10 I/O points
L
L
L
L
Wire the L terminal to the power supply of the input device.
circuit. Wire the L terminal to the power supply of the input device.
L
L
100 to 240 VAC, 50/60 Hz
CPU Unit with 10 I/O points
N
N
N
N
N
N
NC
NC
NC
I0
I0
I0
CPU Unit with 20 I/O points
I1
I1
I1
I2
I2
I2
I3
I3
I3
I4
I4
I4
I5
I5
I5
NC
I6
ZEN-8E1DR
Expansion I/O Unit
(DC inputs and
relay outputs)
DC power supply
ZEN-8E1AR Expansion
I/O Unit (AC input type)
I7
L
COM IN0 IN1 IN2 IN3
I8
N
I9
IN0 IN1 IN2 IN3
Input device
Ia
Ib
Input
device
Input device
ZEN-8E1DT
Expansion I/O Unit
(DC inputs and
transistor outputs)
ZEN-8E1AR
Expansion I/O Unit
(AC input type)
L
N
COM IN0 IN1 IN2 IN3
IN0 IN1 IN2 IN3
Input
device
ZEN V2 Units
12