3 Wiring and Connection3.1.3 Typical Main Circuit Wiring Examples3-143.1.3 Typical Main Circuit Wiring ExamplesNote the following points when designing the power ON sequence.• Design the power ON sequence so that main power is turned OFF when a servo alarm signal (ALM) is output.• The ALM signal is output for a maximum of five seconds when the control power is turned ON. Take this into consid-eration when designing the power ON sequence. Design the sequence so the ALM signal is activated and the alarmdetection relay (1Ry) is turned OFF to stop the main circuit’s power supply to the SERVOPACK and converter.• Select the power supply specifications for the parts in accordance with the input power supply.The typical main circuit wiring examples are shown below.• When turning ON the control power supply and the main circuit power supply, turnthem ON at the same time or turn the main circuit power supply after the controlpower supply. When turning OFF the power supplies, first turn the power for the maincircuit OFF and then turn OFF the control power supply.WARNING• Do not touch the power supply terminals after turning OFF the power. High voltage may still remain in theSERVOPACK and the converter, resulting in electric shock. When the voltage is discharged, the chargeindicator will turn OFF. Make sure the charge indicator is OFF before starting wiring or inspections.Control power supplyALM signal5.0 s max.
