Precautions For Electric Actuator With Lock; Controller And Its Peripheral Devices / Specific Product Precautions; Design And Selection - SMC Networks LECP6 Series Supplementary Operation Manual

9.6 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 24DCV 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 24VDC 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).
/ Refer to the operation manual of LEC (controller) for details of wiring.

10. Controller and its peripheral devices / Specific product precautions

10.1 Design and selection

Warning
(1) Be sure to apply the specified voltage.
Otherwise, a malfunction and breakage of the controller may be caused.
If the applied voltage is lower than the specified, it is possible that the load cannot be moved due to an
internal voltage drop. Please check the operating voltage before use.
(2) Do not operate beyond the specifications.
It may cause a fire; malfunction or the electric actuator damage can result. Please check the specifications
before use.
(3) Install an emergency stop circuit.
Please install an emergency stop outside of the enclosure so that it can stop the system operation
immediately and intercept the power supply.
(4) In order to prevent danger and damage due to the breakdown and the malfunction of this product,
which may occur at a certain probability, a backup system should be established previously by
giving a multiple-layered structure or a fail-safe design to the equipment, etc.
(5) If a fire or danger against the personnel is expected due to an abnormal heat generation, ignition,
smoking of the product, etc., cut off the power supply for this product and the system immediately.
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