70 
Find reference origin diagram: 
 
 
 
Sequential diagram of finding reference origin on forward side: 
 
Steps: 
(1) Install limit switch at forward and reverse side. At the rising edge of /SPD-A, motor runs forward at 
the speed of P4-01 to find the reference origin on forward side. 
(2) After the working table hit the limit switch, the motor stop as the mode set by parameter P0-28 
(3) Motor leaves the limit switch at the speed of P4-02. After the working table left the limit switch, the 
motor run at the Z phase signal position of No.n optical encoder. This position is considered as the 
coordinates origin, n is decided by parameter P4-00. 
 
5.3.2 Position control (external pulse command)   
P0-01 control mode selection 
Set to 6: external pulse mode 
P0-10 pulse instruction form 
P0-11 Motor pulse numbers per rotation*1 
P0-12 Motor pulse numbers per 
rotation*10000 
P0-13 Electronic gear ratio (numerator) 
P0-14 Electronic gear ratio (denominator) 
P0-92~P0-93 32-bit electronic gear ratio 
(numerator)   
P0-94~P0-95 32-bit electronic gear ratio 
Setting of command pulse number required 
for one revolution of motor 
P0-11 and P0-12=0, P0-13/P0-14 are 
effective 
P0-11~P0-14 are 0, P0-92~P0-95 are 
valid 
32-bit electronic gear ratio (numerator): 
P0-92*1 + P0-93 *10000 
Reference origin   
of forward side 
Reference origin   
of reverse side