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Caution
(1) Maintenance should be performed according to the procedure indicated in the Operating
Manual.
Incorrect handling can cause injury, damage or malfunction of equipment and machinery.
(2) Removal of product.
When equipment is serviced, first confirm that measures are in place to prevent dropping of work pieces
and run-away of equipment, etc., and then cut the power supply to the system. When machinery is
restarted, check that operation is normal with electric actuators in the proper positions.
(3) When moving the electric actuator slider manually by hand, please disconnect the actuator
cable.
The electric actuator cannot be moved smoothly by the induced voltage of the motor goes to the
controller when electric actuator slider is moved with the electric actuator connected with the controller.
Moreover, the controller might break down by the induced voltage when moving the electric actuator
slider at high frequency.
[Lubrication]
Caution
(1) The product has been lubricated for life at manufacturer, and does not require lubrication in
service.
Contact SMC if lubrication will be applied.
18.6 Precautions for electric actuator with lock
Warning
(1) Do not use the lock as a safety lock or a control that requires a locking force.
The lock used for the product with a lock is designed to prevent dropping of work piece.
(2) For vertical mounting, use the product with a lock.
If the product is not equipped with a lock, the product will move and drop the work piece when the power
is removed.
(3)
“Measures against drops” means preventing a work piece from dropping due to its weight when
the product operation is stopped and the power supply is turned off.
(4) Do not apply an impact load or strong vibration while the lock is activated.
If an external impact load or strong vibration is applied to the product, the lock will lose it’s holding
force and damage to the sliding part of the lock or reduced lifetime can result. The same situations will
happen when the lock slips due to a force over the thurst of the product, as this accelerates the wear to
the lock.
(5) Do not apply liquid or oil and grease to the lock or its surrounding.
When liquid or oil and grease is applied to the sliding part of the lock, its holding force will reduce
significantly.
(6) Take measures against drops and check that safety is assured before mounting, adjustment and
inspection of the product.
If the lock is released with the product mounted vertically, a work piece can drop due to its weight.
(7) When the electric actuator is operated manually (when SVRE output signal is off), supply 24 DCV
to the [BK RLS] terminal of the power supply connector.
If the product is operated without releasing the lock, wearing of the lock sliding surface will be
accelerated, causing reduction in the holding force and the life of the locking mechanism.
(8) Do not supply 24 VDC power supply constantly to the [BK RLS (Lock release)] terminal.
Stop supplying 24VDC power supply to the [BK RLS (Lock release)
]
terminal during normal operation. If
power is supplied to the [BK RLS] terminal continuously, the lock will be released, and work pieces may
be dropped at stop (EMG).
