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6. Electric actuators / Common precautions
6.1 Design and selection
Warning
1. Do not apply a load in excess of the actuator specification.
A product should be selected based on the maximum pay load and allowable moment. If the
product is used outside of the operating limit, eccentric load applied to the guide will become
excessive and have adverse effects such as creating play at the guide, degraded accuracy and
shortened product life.
2. Do not use the product in applications where excessive external force or impact force is
applied to it.
This can lead to premature failure of the product..
6.2 Handling
Caution
1. INP
output
signal
1) Positioning operation
When the product comes within the set range by
step data
[In position]
, output signal will be turned
on.
Initial value: Set to [0.50] or higher.
2) Pushing operation
When the pushing force exceeds the [TriggerLV] value the INP ( In position) output signal is turned
on.
Please set the [Pushing force] and the [TriggerLV] within the specified range.
To ensure that the actuator pushes the workpiece by the inputted [pushing force], it is
recommended that the [TriggerLV] is set to the same value as the [pushing force].
2. When pushsing operation, be sure to use in "pushing operation". Also, Never hit at the
stroke end.
It causes the breakage and malfunction. The internal stopper can be broken.
3. The positioning force should be set to
LESH**：100％ / LESH**A：250％
.
If the positioning force is set below
LESH**：100％ / LESH**A：250％
, it can displace the tack time,
which causes an alarm.
4. Actual speed of the product can be changed by load.
When selecting a product, check the catalog for the instructions regarding selection and
specifications.
5. Do not apply a load, impact or resistance in addition to a transferred load during return to
origin.
Otherwise, the origin can be displaced since it is based on detected motor torque.
6. The table and guide block are made of special stainless.
There can be rust on the product in an environment exposed to water drops.
7. Do not dent, scratch or cause other damage to the body and table mounting surfaces.
It may cause a loss of parallelism in the mounting surfaces, looseness in the guide unit, an increase
in sliding resistance or other problems.
8. Do not dent, scratch or cause other damage to the surface over which the rail and guide
will move.
increased sliding resistance and Play can result.
9. When attaching work piece, do not apply strong impact or large moment.
If an external force over the allowable moment is applied, it may cause looseness in the guide unit,
an increase in sliding resistance or other problems.
10. Keep the flatness of mounting surace 0.02mm or less.
Insufficient flatness of a work piece or base mounted on the body of the product can cause play at
the guide and increased sliding resistance.
Do not place work and do not transform the clamp face
by a crowded installation etc.
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