Omron SmartSlice GRT1 Series - Page 89

69
Digital I/O Units Section 4-6
Component Names and Functions
(Same for GRT1-OD4, GRT1-OD4-1, GRT1-OD4G-1, GRT1-OD4G-3)
PWR Indicator The PWR indicator shows the status of the power supply on the GRT1-
OD4G-3 only.
For information on other indicators, refer to 2-1-3 LED Indicators.
Internal Circuits
GRT1-OD4 (NPN)
LED indicators
Indicate the Unit's status.
Terminal Block
OD4
TS
0
1
2 3
A1A2
A3A5
A4
A6
B1 B2
B3
B6B4
B5
Test pin
Release button
Terminal insertion hole
GRT1-OD4
GRT1-OD4-1
GRT1-OD4G-1
GRT1-OD4G-3
LED indicators
Indicate the Unit's status.
Terminal Block
OD4G-3
TS
0
1
PWR
2 3
A1A2
A3A5
A4
A6
B1 B2
B3
B6B4
B5
Test pin
Release button
Terminal insertion hole
PWR Green Lit I/O power and Unit power are being supplied.
Not lit I/O power or Unit power is not being supplied.
Base block
Main block Terminal bloc
k
0
V
NC
3
V
NC
I/O LED
Voltage
step-down
Internal circuits
Internal circuits