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LECSN2-T□ Series / Driver 
1. Safety Instructions 
 
These safety instructions are intended to prevent hazardous situations and/or equipment damage. 
These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” 
They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC), 
*1) and other safety regulations. 
*1) ISO 4414: Pneumatic fluid power -- General rules relating to systems 
 ISO 4413: Hydraulic fluid power -- General rules relating to systems 
 IEC 60204-1: Safety of machinery -- Electrical equipment of machines (Part 1: General requirements) 
 ISO 10218: Manipulating industrial robots -- Safety 
. 
1. The compatibility of the product is the responsibility of the person who designs the equipment or 
decides its specifications. 
Since the product specified here is used under  various  operating conditions, its compatibility with specific 
equipment must be decided by the person who designs the equipment or decides its specifications based on 
necessary analysis and test results.  
The expected performance and safety assurance of the equipment will be the responsibility of the person who 
has determined its compatibility with the product.  
This  person  should  also  continuously review all  specifications of the product  referring to  its  latest  catalog 
information, with a view to giving due consideration to any possibility of equipment failure when configuring 
the equipment. 
2. Only personnel with appropriate training should operate machinery and equipment. 
The product specified here may become unsafe if handled incorrectly. 
The  assembly,  operation  and  maintenance  of  machines  or  equipment  including  our  products  must  be 
performed by an operator who is appropriately trained and experienced. 
3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed. 
The  inspection  and  maintenance  of  machinery/equipment  should  only  be  performed  after  measures  to 
prevent falling or runaway of the driven objects have been confirmed. 
When the product is to be removed, confirm that the safety measures as mentioned above are implemented 
and the power from any appropriate source is cut, and read and understand the specific product precautions 
of all relevant products carefully. 
Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction. 
4. Contact SMC beforehand and take special consideration of safety measures if the product is to be 
used in any of the following conditions. 
1) Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to 
direct sunlight. 
2)  Installation  on  equipment  in  conjunction  with  atomic  energy,  railways,  air  navigation,  space,  shipping, 
vehicles, military, medical treatment,  combustion  and recreation, or equipment in contact  with food  and 
beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or 
other applications unsuitable for the standard specifications described in the product catalog. 
3) An application which could have negative effects on people, property, or animals requiring special safety 
analysis. 
4) Use in an interlock circuit, which requires the provision of double interlock for possible failure by using a 
mechanical protective function, and periodical checks to confirm proper operation.