YASKAWA SGD7S-*A20**F62 Series Product Manual

Contents

xxi Troubleshooting Precautions Disposal PrecautionsDANGER If the safety device (molded-case circuit breaker or fuse) installed in the power supply line oper-ates, remove the cause before you supply power to the SERVOPACK again. If necessary, repairor replace the SERVOPACK, check the wiring, and remove the factor that caused the safetydevice to operate.There is a risk of fire, electric shock, or injury.WARNING The product may suddenly start to operate when the power supply is recovered after a momen-tary power interruption. Design the machine to ensure human safety when operation restarts.There is a risk of injury.CAUTION When an alarm occurs, remove the cause of the alarm and ensure safety. Then reset the alarmor turn the power supply OFF and ON again to restart operation.There is a risk of injury or machine damage. If the Servo ON signal is input to the SERVOPACK and an alarm is reset, the Servomotor maysuddenly restart operation. Confirm that the servo is OFF and ensure safety before you reset analarm.There is a risk of injury or machine damage. Always insert a magnetic contactor in the line between the main circuit power supply and themain circuit power supply terminals on the SERVOPACK so that the power supply can be shutOFF at the main circuit power supply.If a magnetic contactor is not connected when the SERVOPACK fails, a large current may flow,possibly resulting in fire. If an alarm occurs, shut OFF the main circuit power supply.There is a risk of fire due to a regenerative resistor overheating as the result of regenerative transis-tor failure. Install a ground fault detector against overloads and short-circuiting or install a molded-casecircuit breaker combined with a ground fault detector.There is a risk of SERVOPACK failure or fire if a ground fault occurs. The holding brake on a Servomotor will not ensure safety if there is the possibility that an exter-nal force (including gravity) may move the current position and create a hazardous situationwhen power is interrupted or an error occurs. If an external force may cause movement, installan external braking mechanism that ensures safety. When disposing of the product, treat it as ordinary industrial waste. However, local ordinancesand national laws must be observed. Implement all labeling and warnings as a final product asrequired.