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(4) Power supply
(a) Operate the servo amplifier to meet the requirements of the overvoltage category II set forth in
IEC664. For this purpose, a reinforced insulating transformer conforming to the IEC or EN
Standard should be used in the power inp ut section.
(b) When supplying interface power from external, use a 24VDC power supply which has been
insulation-reinforced in I/O.
(5) Grounding
(a) To prevent an electric shock, always connect the protective earth (PE) terminals (marked ) of the
servo amplifier to the protective earth (PE) of the control box.
(b) Do not connect two ground cable s to the same protec tive earth (PE) ter minal. A lways con nect th e
cables to the terminals one-to-one.
PE terminals PE terminals
(c) If a leakage current breaker is used to prevent an electric shock, the protective earth (PE) terminals
of the servo amplifier must be connected to th e c orr es pondi n g eart h te rmi nal s.
(6) Wiring
(a) The cables to be connected to the terminal block of the servo amplifier must have crimping
terminals provided with insulat ing tubes to prevent contact with adjacent terminals.
Crimping terminal
Insulating tube
Cable
(b) When the servo motor has a power supply lead, use a fixed terminal block to connect it with the
servo amplifier. Do not connect cables directly.
Terminal block