2. Wiring and connection 
2.1.  Main circuit and peripheral device connection 
 Do not open the surface cover when connecting the power or during operation. It can cause 
electric shock.   
 Do not operate the drive when the surface cover is removed.   
It can cause electric shock because the high voltage terminal and charge part are exposed.   
 Even when the power is turned off, do not remove the surface cover unless it is for wiring or 
periodic check.   
  It can cause electric shock because the inside of the servo drive is charged.   
  Execute  the  wiring  work  and  check  more  than  10  minutes  after  the  power  has  been 
disconnected and checked of the voltage with tester etc.   
  Ground the grounding  terminal  of  the  drive  and motor both to  the  drive  side and  ground at 
once in the closest point.   
To protect electric shock and mis-operation, use at least class-3 ground (100  max.). 
 The wiring work and checking work must be executed by specialized technician.   
 The wiring must be done after the main unit is installed. It can cause electric shock or injury. 
 Do not operate the key with wet hands. It can cause electric shock or injury.   
 Make sure you do not damage the wire, apply excessive stress on the wire, put heavy object 
on top of  the wire  or  have the  wire pressed  again  an  object. It can  cause  electric  shock  or 
injury. 
 Use wiring that complies with the standard. Otherwise, the servo motor may not operate.   
 Do not install power condenser, surge absorber or radio noise filter on the output side of the 
servo drive.   
 Correctly connect the output side (Terminal U,V,W,FG), or the motor can operate abnormally. 
  When  attaching  the  DC relay  for  control  output  signal  on  the  control  output  signal  part,  be 
careful  of the diode  direction for surge absorption. The signal may not  be  outputted  due to 
problems  and  the  protection  circuit  will  not  operate  during  emergency  stop.  For  diode 
direction, refer to the user manual.