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(4) Usage methods
CAUTION
Install an external emergency stop circuit so that the operation can be stopped and the power turns OFF
immediately. A contactor, etc., must be used in addition to the shutoff function in the controller.
Turn OFF the power immediately if any smoke, abnormal noise or odor is generated from the controller,
servo drive unit or servomotor.
Only a qualified technician may disassemble or repair this product.
Do not modify this product.
Use a noise filter, etc., to reduce the effect of electromagnetic disturbances. Electronic devices used near
the servo drive unit could be affected by the electromagnetic disturbances.
Use the controller, servo drive unit, servomotor and regenerative resistor in the designated combination.
Failure to observe this could result in fires or faults.
The brakes (magnetic brakes) assembled in the servomotor are used for holding, and must not be used
for normal braking.
There may be cases when the magnetic brakes cannot hold the state because of the life or machine
structure (when ball screw and servomotor are coupled via a timing belt, etc.). Install a stopping device on
the machine side so that safety can be ensured.
After maintenance or inspection, always carry out a trial operation before starting actual operation.
Do not move the machine's movable range during automatic operation. Do not place hands, feet or face
near the spindle during rotation.
Use the power (input voltage, input frequency, tolerable instantaneous power failure time) under the power
specification conditions given in the Specifications.
Turn the NC Card's power ON before turning the base I/O unit's power ON.
If the base I/O unit's power is turned ON first, the current will be led to the NC Card from the connection
cable. This will prevent the personal computer or the cards in the personal computer from starting up
properly.
(5) Measures during a fault
CAUTION
If a hazardous situation could arise during a power failure or product fault, use the servomotor with
magnetic brakes or provide an external brake mechanism for holding purposes.
Use a double circuit structure for the magnetic brake's operation circuit so that the brakes will activate
even when the external emergency stop signal is issued.
If an alarm occurs, remove the cause, and secure surrounding safety before resetting the alarm and
restarting operation.
The machine could suddenly restart when power is restored after an instantaneous power failure. Do not
near the machine in this case. (Design the machine so that operator safety can be ensured even if the
machine restarts.)