6 SD700 Series Servo Technical Manual When using a servo unit for which the dynamic brake option is available, connect the external dynamic brake resistor that corresponds to the specifications of the machine or device to the specified terminal. Otherwise, in case of emergency stop, it may cause accidental operation, resulting in damage to equipment, burnout, and injury to personnel. Attention Make sure that the (CHARGE) light is off at least 10 minutes after the power is turned off, and then proceed with wiring and inspection. Even if the power is turned off, high voltage may remain inside the servo unit. Therefore, do not touch the power terminals while the (CHARGE) light is on.
Otherwise, it may cause electric shock. Follow the precautions and procedures described in this manual for wiring and test operation. The servo unit malfunction caused by incorrect wiring of the brake circuit, application of a different voltage, etc. may cause mechanical damage or injury to persons. Make sure that the wiring is done correctly and reliably. The pin arrangement of connectors and connectors varies depending on the model. Be sure to check the pin arrangement with the technical data of the model used. Failure to do so may result in product failure or malfunction.
Make sure to tighten and securely connect the wires of the power terminal and motor connection terminal according to the specified method and torque. Failure to tighten them sufficiently may cause the wires and terminal blocks to heat up and cause a fire due to poor contact. Use shielded double-stranded stranded wire or multi-core double-stranded stranded integral shielded wire for input and output signal cables and encoder cables. When wiring the main circuit terminals of the servo unit, be sure to observe the following precautions. Turn on the power to the Servo Unit after all the wiring, including the main circuit terminal, is completed.
If the main circuit terminal is a connector type, remove the connector from the main body of the Servo Unit before wiring. Only one wire can be inserted into each wire socket of the main circuit terminal. When inserting the wires, do not short-circuit the adjacent wires by making contact with the burrs of the core wires. Install a safety device such as a circuit breaker for wiring to prevent short circuiting of external wiring. Otherwise, it may cause fire or malfunction. Notice Please use our specified cables for wiring as much as possible.
If you use a cable other than the one specified by us, use the wiring material specified by us or an equivalent product after checking the rated current of the type used and the operating environment. Make sure to tighten the fixing screws and locking mechanism of the cable connector.