Mitsubishi Electric MR-J4-10A(-RJ) Instruction Manual page 826

APPENDIX
App. 4.3 Installation direction and clearances
CAUTION
To adapt your machine using MR-J4-03A6 or MR-J4W2-0303B6 to IEC/EN 60950-1, either supply the
amplifier with a power supply complying with the requirement of 2.5 stated in IEC/EN 60950-1 (Limited
Power Source), or cover the amplifier and motors connected to the outputs with a fire enclosure.
The devices must be installed in the specified direction. Not doing so may cause
a malfunction.
Mount the servo amplifier on a cabinet which meets IP54 in the correct direction
to maintain pollution degree 2.
The regenerative resistor supplied with 11 kW to 22 kW servo amplifiers does not
have a protective cover. Touching the resistor (including wiring/screw hole area)
may cause a burn injury and electric shock. Even if the power was shut-off, be
careful until the bus voltage discharged and the temperature decreased because
of the following reasons.
It may cause a burn injury due to very high temperature without cooling.
It may cause an electric shock due to charged capacitor of the servo amplifier.
10 mm or
more
(Note 2)
Note 1. For 11 kW to 22 kW servo amplifiers, the clearance between the bottom and
ground will be 120 mm or more.
2. When mounting MR-J4-500_, maintain a minimum clearance of 25 mm on the left
side.
Cabinet Top
40 mm or
more
10 mm or
more
40 mm or
more
(Note 1)
Bottom
App. - 11
Cabinet
80 mm or longer
for wiring
Servo amplifier