Omron GRT1 - 11-2007 Operation Manual page 297

GRT1-PD2 and GRT1-PD2G I/O Power Feed Units
Component Names
and Functions
LED Indicators
I/O PWR Indicator
ERR Indicator
276
Item
Reset terminals ---
Reset V (R) termi- ---
nals
There are three methods that can be used to reset the overcurrent status of
GRT1-PD2G.
• Short the RESET terminal to the V (R) terminal. The overcurrent protec-
tion function will be automatically reset.
• Connect the RESET terminal to an output terminal of a Transistor Output
Unit (e.g., the GRT1-OD4-1 (PNP)) and turn ON the output signal for at
least 100 ms. If the Output Unit and I/O Power Feed Unit are connected to
different I/O power sources, ground them to the same point.
• Turn the power supply OFF and ON. The overcurrent protection function
will be automatically reset.
LED Indicators
PD2
Indicate the status of
I/O PWR
the power supply.
Terminal block
GRT1-PD2
The I/O PWR indicator shows the status of the I/O power supply.
The ERR indicator shows the status of the overcurrent protection function.
Name Color Status
I/O PWR Green Lit
--- Not lit
ERR Red Lit
--- Not lit
Specification
1
1
LED Indicators
PD2G
These indicators show
I/O PWR
the power supply status ERR
and the overcurrent status.
Terminal block
GRT1-PD2G
Meaning
Normal status I/O power is being supplied nor-
mally.
Error status or I/O power is not being supplied
no power or an overcurrent occurred.
Error status An overcurrent occurred.
Normal status I/O power is being supplied nor-
or no power mally or I/O power is not being
supplied.
Section 8-3