Omron G3ZA Manual page 6

■ Connection Configuration
Single-phase SSR
R phase
S phase
T phase
Load power
supply
Trigger
signal
Host device
G3ZA
Control
power
supply
CT (4-channel model only)
Example for Connecting Two SSRs
Note: Connect a power supply with the same phase as the SSRs to
the load power supply terminals on the G3ZA.
■ Host Device Connection Example
Example of Connection to EJ1 Modular Temperature Controller
PWR
RUN
ERR
ALM
SW1
SW2
G3ZA
Connection port
READY
SD/RD
SW1
OCC
SW2
ERROR
Eight SSRs
G3ZA
Example of Connection to PLC
PLC
RS-485
6
Multi-channel Power Controller
SSR SSR
Load
(e.g., heater) (e.g., heater)
EJ1N-TC4
or
EJ1C-EDU
EJ1N-TC2
COM1 PWR COM1 PWR COM1
EJ1-TC4 COM2 RUN EJ1-TC4 COM2 RUN EJ1-TC4 COM2
COM3 ERR COM3 ERR COM3
ALM ALM
SW1 SW1
ON ON ON
SW2 SW2
G3ZA
Connection port
READY READY
SD/RD SD/RD
SW1
OCC OCC
SW2
ERROR ERROR
Eight SSRs
G3ZA G3ZA
G3ZA
Alarm output
Load power supply
Power supply for
(for zero-cross detection)
Multi-channel
Power Controller
G3ZA
Three-phase SSR
R phase
S phase
T phase
Load power
supply
Host device
Control
power
supply
Load
Note: Connect to one of the three phases on the load power supply
input terminals of the G3ZA.
Port A (connector): USB connection possible
using a E58-CIFQ1 (sold separately)
Port B: RS-485 (CompoWay/F)
G3ZA
Connection port
SW1
SW2
Eight SSRs
Heater
SSR
V2
Trigger signal
SSR
G3ZA
(three-
phase)
CT (4-channel model only)
CX-Thermo for setup
PC
Host Devices
PLC PT
Load
PC