Omron G9SP-N20S - Operation for Power Supply Interruptions; Operation for Voltage Drop

146
Operation for Power Supply Interruptions Section 9-5
9-5 Operation for Power Supply Interruptions
9-5-1 Operation for Voltage Drop
The G9SP-series Controller monitors the power supply voltage to ensure safe
operation. If a voltage over the upper limit or under the lower limit is detected,
the following operations will be performed.
Operation for Voltage Errors in Internal Circuit Power Supply
If a voltage error occurs in the internal circuit power supply, the G9SP-series
Controller will stop operation and turn OFF the outputs. The G9SP-series
Controller will restart operation when the power supply voltage returns to nor-
mal.
Operation for Voltage Errors in Output Circuit Power Supply
If an error occurs in the output power supply, the G9SP-series Controller will
continue operation, but it will turn OFF the outputs. The OUT PWR indicator
on the G9SP-series Controller or the I/O power supply monitor can be used to
see if the output power supply voltage is being supplied correctly.
Checking Method 1: Using the G9SP Configurator for Monitoring
Refer to 10-1-3 Error Log and 10-1-4 Operation Log.
Checking Method 2: Using the Safety Output Power Supply Error Flag via Option Board
Communications
Refer to SECTION 7 Communications with a Standard PLC Using an Option
Board.
Checking Method 3: Using the Safety Output Power Supply Error Flag (I/O Tag) in the Program
Refer to the G9SP-N@@@ Safety Controller Instructions Reference Manual
(Cat. No. Z923).