Fanuc IC693ALG390 PLC

The primary power source for the module is the isolated +24 VDC power supplied by the PLC power supply. Two terminals are provided on the module’s terminal connector for user supplied +24 volts. This allows you to provide a standby power supply, so that the outputs can continue to hold their value if the internal supply is lost and Hold Last State is selected. Additionally, you can also supply the module voltage to reduce the load on the PLC isolated +24 VDC power supply. The user supply must be used when the applied voltage is 0.7 volts higher than the isolated +24 VDC supply, which can range from 21.5 volts to 26.5 volts. An LED at the top of the module’s faceplate is ON when the module’s power supply is operating. To minimize capacitive loading and noise, all field connections should be wired using a good grade of twisted, shielded instrumentation cable. The shields should be connected to GND on the user terminal connector block. The GND connection provides access to the baseplate (frame ground) resulting in superior rejection of noise caused by any shield drain currents. The module provides electrical isolation of externally generated noise between field wiring and the backplane through the use of optical isolation. This module can be installed in any I/O slot of a 5 or 10-slot baseplate in a Series 90-30 PLC system.