Omron SmartSlice GRT1-OD4G-1 Operation Manual page 89

Digital I/O Units
Component Names and Functions
(Same for GRT1-OD4, GRT1-OD4-1, GRT1-OD4G-1, GRT1-OD4G-3)
LED indicators
Indicate the Unit's status.
Terminal Block
PWR Indicator
Internal Circuits
GRT1-OD4 (NPN)
OD4
TS
0 1
2 3 Test pin
Release button
Terminal insertion hole
GRT1-OD4
GRT1-OD4-1
GRT1-OD4G-1
The PWR indicator shows the status of the power supply on the GRT1-
OD4G-3 only.
PWR Green
For information on other indicators, refer to 2-1-3 LED Indicators.
Base block
Internal circuits
LED indicators
Indicate the Unit's status.
Terminal Block
Lit I/O power and Unit power are being supplied.
Not lit I/O power or Unit power is not being supplied.
Main block
I/O LED
Voltage
step-down
Internal circuits
Section 4-6
OD4G-3
TS
PWR
0 1
Test pin
2 3
Release button
Terminal insertion hole
GRT1-OD4G-3
Terminal block
0
V
NC
3
V
NC
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