IS620P User Manual                                                                      Chapter 4 Running and Commissioning
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4.1 Use of the Position Control Mode
Figure 4-1 Diagram of the position control mode
Reference input 
setting
Position 
regulator
Host 
controller
Pulse input
H05-00 Position 
reference source
H05-01 Pulse reference 
input terminal selection
H05-15 Pulse reference 
form
H
05-
07 Electronic gear ratio 1 
(numerator)
H05-09 Electronic gear ratio 1 
(
denominator)
H
05-11 
Electronic gear ratio 2 
(numerator) 
H05-13 Electronic gear ratio 2 
(denominator)
H05-02 Pulses for one motor 
revolution
H05-04 First-order low-
pass filter time constant
H05-06 Filter time 
constant of average value 
of position references
H05-20 Output condition of positioning 
completed signal (COIN)
H05-
21 Threshold for positioning 
completed
Electronic gear 
ratio
Position 
reference filter
Reference direction selection
POSDirSel 
input
INHIBIT 
input
Frequency-division output
Frequency-
division pulse 
output
Pulse input forbidden
 
Position deviation cleared
COIN output
Positioning completed
Servo drive
H05-17 Encoder 
frequency-division pulses
H05-38 Servo pulse 
output source
CLR input
The position control mode is the most common mode of the servo drive. The main use 
procedure is as follows:
1.  Connect the power cables of the main circuit and control circuit of the servo drive, motor 
power cables, and encoder cables correctly. After power-on, the keypad of the servo drive 
displays "rdy", indicating that the wiring is correct.
2.  Perform trial jog running by pressing keys and ensure that the motor can run properly.
3.  Connect the signals of terminal CN1, such as the pulse direction input, reference pulse 
input, and required DI/DO signals (servo drive enabled and positioning completed) 
according to Figure 4-2.
4.  Perform the setting related to the position control mode. Set the DI/DO functions in groups 
H03 and H04 based on actual requirements. You may also need to set the home return 
and frequency-division functions based on actual requirements.
5.  Enable the servo drive. Send a position reference from the host controller to enable 
the servo motor to rotate. Make the motor rotate at a low speed and check whether the 
rotating direction and electronic gear ratio are normal. Then, adjust the gain. For details, 
see the commissioning procedure in section 4.5.