Unified Controller Vm series Controller typeS / typeL Virtualization Functional Manual 
 
2.    Safety Precautions in Wiring 
 
Turn off the power when connecting 
cables. 
Otherwise, it may cause electric shock or 
mechanical failure. 
Use crimping terminal for wiring the 
module, or cover the wire with tape. 
Exposed conductive part may cause an 
electric shock. 
Install the terminal block cover 
securely to the terminal block. 
Exposed conducting parts may cause 
electric shock. 
Connect an external power supply 
that matches the rating. 
Otherwise, it may cause explosion or 
fire. 
Wiring work must be done by 
qualified experts. 
Wrong wiring may cause fire, electric 
shock or mechanical failure. 
Install a fuse that matches the 
current capacity to the external 
circuit for overload protection of the 
relay output module. 
Otherwise, a load short-circuit may 
cause an accident or damage to the 
machine. 
Construct the emergency stop circuit 
and interlock circuit outside the Vm 
series. 
Otherwise, failure or malfunction of Vm 
series may cause injury or damage to 
the equipment.