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(3) Environment
Operate the servo amplifier at or above the contamination level 2 set forth in IEC60664-1. For this purpose,
install the servo amplifier in a control box which is protected against water, oil, carbon, dust, dirt, etc. (IP54).
(4) Power supply
(a) This servo amplifier can be supplied from star-connected supply with earthed neutral point of
overvoltage category III set forth in IEC60664-1. However, when using the neutral point of 400V system
for single phasesupply, a reinforced reinforced insulating transformer is required in the power input
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
servo amplifier to the protective earth (PE) of the control box.
(b) Do not connect two ground cables to the same protective earth (PE) terminal. Always connect the
cables to the terminals one-to-one.
(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 the corresponding earth terminals.
(6) Wiring
(a) The cables to be connected to the terminal block of the servo amplifier must have crimping terminals
provided with insulating tubes to prevent contact with adjacent terminals.
(b) Use the servo motor side power connector which complies with the EN Standard. The EN Standard
compliant power connector sets are available from us as options. (Refer to section 14.1)
PE terminals
Crimping terminal
Insulating tube
Cable
A - 9
PE terminals
) of the
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