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(3) Environment
Operate MELSERVO-J2M at or above the contamination level 2 set forth in IEC60664-1 For this
purpose, install MELSERVO-J2M in a control box which is protected against water, oil, carbon, dust,
dirt, etc. (IP54).
(4) Power supply
(a) Operate MELSERVO-J2M to meet the requirements of the overvoltage category II set forth in
IEC60664-1 For this purpose, a reinforced insulating transformer conforming to the IEC or EN
standard should be used 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
) of the
base unit 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 base unit must be connected to the corresponding earth terminals.
(d) The protective earth (PE) of the servo motor is connected to the protective earth of the base unit via
the screw which fastens the drive unit to the base unit. When fixing the drive unit to the base unit,
therefore, tighten the accessory screw securely.
(6) Auxiliary equipment and options
(a) The no-fuse breaker and magnetic contactor used should be the EN or IEC standard-compliant
products of the models described in Section 12.2.2.
(b) The sizes of the cables described in Section 12.2.1 meet the following requirements. To meet the
other requirements, follow Table 5 and Appendix C in EN60204-1.
Ambient temperature: 40 (104) [ ( )]
Sheath: PVC (polyvinyl chloride)
Installed on wall surface or open table tray
(c) Use the EMC filter for noise reduction.
(7) Performing EMC tests
When EMC tests are run on a machine/device into which MELSERVO-J2M has been installed, it must
conform to the electromagnetic compatibility (immunity/emission) standards after it has satisfied the
operating environment/electrical equipment specifications.
For the other EMC directive guidelines on MELSERVO-J2M, refer to the EMC Installation
Guidelines(IB(NA)67310).