Mitsumi electronic MR-J3- A Manual De Usuario

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2. INSTALLATION 
 
2.3 Cable stress 
(1) The way of clamping the cable must be fully examined so that flexing stress and cable's own weight stress 
are not applied to the cable connection. 
 
(2) For use in any application where the servo motor moves, fix the cables (encoder, power supply, brake) with 
having some slack from the connector connection part of the servo motor to avoid putting stress on the 
connector connection part. Use the optional encoder cable within the flexing life range. Use the power 
supply and brake wiring cables within the flexing life of the cables. 
 
(3) Avoid any probability that the cable sheath might be cut by sharp chips, rubbed by a machine corner or 
stamped by workers or vehicles. 
 
(4) For installation on a machine where the servo motor will move, the flexing radius should be made as large 
as possible. Refer to section 11.4 for the flexing life. 
 
2.4 Inspection items 
WARNING 
Before starting maintenance and/or inspection, turn off the power and wait for 15 
minutes or longer until the charge lamp turns off. Then, confirm that the voltage 
between P( ) and N( ) is safe with a voltage tester and others. Otherwise, an 
electric shock may occur. In addition, always confirm from the front of the servo 
amplifier whether the charge lamp is off or not. 
Any person who is involved in inspection should be fully competent to do the work. 
Otherwise, you may get an electric shock. For repair and parts replacement, contact 
your local sales office. 
 
 
POINT 
 
Do not test the servo amplifier with a megger (measure insulation resistance), or 
it may become faulty. 
Do not disassemble and/or repair the equipment on customer side. 
 
 
It is recommended to make the following checks periodically. 
 
(1) Check for loose terminal block screws. Retighten any loose screws. 
 
(2) Check the cables and the wires for scratches and cracks. Perform periodic inspection according to 
operating conditions.