2. INSTALLATION
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(3) When installing the cabinet in a place where toxic gas, dirt and dust exist, conduct an air purge (force
clean air into the cabinet from outside to make the internal pressure higher than the external
pressure) to prevent such materials from entering the cabinet.
2.3 Encoder cable stress
(1) The way of clamping the cable must be fully examined so that bending 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, and
lock) 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 bending life range.
Use the power supply and lock wiring cables within the bending 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 moves, the bending radius should be made as
large as possible. Refer to section 10.4 for the bending life.
(5) The minimum bending radius : Min. 45mm.
2.4 Inspection items
Before starting maintenance and/or inspection, turn off the power and wait for 15
minutes or more 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, when confirming whether the charge lamp is off or
not, always confirm it from the front of the driver.
To avoid an electric shock, only qualified personnel should attempt inspections.
For repair and parts replacement, contact your local sales office.
Do not perform insulation resistance test on the driver. Otherwise, it may cause a
malfunction.
Do not disassemble and/or repair the equipment on customer side.
It is recommended that the following points periodically be checked.
(1) Check for loose terminal block screws. Retighten any loose screws.
(2) Check the cables and the like for scratches or cracks. Inspect them periodically according to
operating conditions especially when the servo motor is movable.
(3) Check that the connector is securely connected to the driver.
(4) Check that the wires are not coming out from the connector.
(5) Check for dust accumulation on the driver.
(6) Check for unusual noise generated from the driver.
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