n cable because the cable is easily influenced by noise.
If noise is a problem, coil the communication cable two turns around the ferrite cores on the SERVOPACK end and the controller end. Refer to the following diagram.
(c) Noise on the Reference Input Line
If the reference input line receives noise, ground the 0 V line (SG) of the reference input line. If the main circuit wiring for the motor is accommodated in a metl conduit, ground the conduit and its junction box. For all grounding, ground