III - 3
1. Maintenance Works
1.1 Instruction of Inspection Works
● The electrolytic capacitor and fan will deteriorate. Periodically change these to prevent secondary damage from faults.
Replacements can be made by our sales representative, or at the nearest service center.
● If an error occurs in the self diagnosis of the controller or servo amplifier, confirm the check details according to the
instruction manual, and restore the operation.
● If a dangerous state is predicted in case of a power failure or product failure, in order to prevent that state, use a
servomotor with electromagnetic brakes for maintenance or mount a brake mechanism externally.
● Use a double circuit construction so that the electromagnetic brake operation circuit can be operated by emergency stop
signals set externally.
● If an error occurs, remove the cause, secure the safety and then resume operation after alarm release.
● The unit may suddenly restart after a power failure is restored, so do not go near the machine.
(Design the machine so that personal safety can be ensured even if the machine restarts suddenly.)
● Confirm and adjust the program and each parameter before operation. Unpredictable movements may occur depending
on the machine.
● Extreme adjustments and changes may lead to unstable operation, so never make them.
● Do not apply a voltage other than that specified in the instruction manual on any terminal. Doing so may lead to destruction
or damage.
● Do not mistake the terminal connections, as this may lead to destruction or damage.
● Do not mistake the polarity (+ / -), as this may lead to destruction or damage.
● Do not touch the heat radiating fins of controller or servo drive unit, regenerative resistor and servomotor, etc., while the
power is ON and for a short time after the power is turned OFF. In this timing, these parts become very hot and may lead
to burns.
● Always turn the power OFF before touching the servomotor shaft or coupled machines, as these parts may lead to injuries.
● Do not go near the machine during test operations or during operations such as teaching. Doing so may lead to injuries.
● Do not bunch the control wires or communication cables with the main circuit or power wires, or lay them closely.
They should be installed 100mm (3.94inch) or more from each other. Trying to bunch or install could result in noise that
would cause operation failure.
CAUTION
MBR
EMG
Servomotor
Magnetic
brake
Shut off with the servomotor
brake control output.
Shut off with NC brake
control PLC output.
24VDC
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