4.3  Trial Operation for Servomotor without Load from Host Reference
4-7
4.3.3 Trial Operation under Position Control from the Host Controller with the Multi-
Winding Drive Unit Used for Speed Control
To operate the multi-winding drive unit in speed control under the position control from the host controller, 
check the operation of the servomotor after finishing the trial operation explained in 4.3.2 Trial Operation in 
Speed Control
.
4.3.4 Trial Operation in Position Control
Perform the following steps for trial operation in position control. The steps are specified on the condition that 
input signal wiring for the position control has been completed according to 
4.3.1 Inspecting Connection and Sta-
tus of Input Signals.
Step Operation Reference
1
Recheck the power supply and the input signal circuits, and turn ON the control 
power supply to the multi-winding drive system.
3.3.3 Example of I/O Sig-
nal Connections in Speed 
Control
2 Adjust the speed reference input gain (Pn300).
5.3.1  Basic Settings for 
Speed Control
3 Set the encoder output pulses (Pn212).
5.3.7  Setting Encoder 
Output Pulse
4 Turn ON the main circuit power supply of the SERVOPACK and converter. −
5
Check that speed reference input (the voltage between V-REF and SG) is 0 V, and 
turn ON the servo ON (/S-ON) input signal.
Note: If the servomotor rotates at a very low speed with the speed reference input at 
0 V, adjust the reference offset so that the servomotor will not rotate.
5.3.2  Reference Offset 
Adjustment
6
To check the speed of the servomotor, execute a constant speed reference at a low 
speed through the host controller. 
Example: Visually check that the servomotor rotates once per second with a speed 
reference of 60 min
-1
.
Note: If the speed of the servomotor is not correct, check the reference sent by the 
host controller.
8.1  List of Monitor Dis-
plays
7
To check the rotation of the servomotor, execute a simple positioning reference 
through the host controller.
Example: Input a reference that is equivalent to a single rotation of the servomotor. 
To confirm that the servomotor moved a single rotation, do a visual check 
or check the rotational angle 1 (Un003 [pulse]).
Note: If the rotation of the servomotor is not correct, check the reference sent by the 
host controller.
8.1  List of Monitor Dis-
plays
8 Return the speed reference input to 0 V. −
9 Turn OFF the servo ON signal (/S-ON). −
Step Operation Reference
1
Recheck the power supply and the input signal circuits, and turn ON the control 
power supply to the multi-winding drive system.
3.3.4 Example of I/O Sig-
nal Connections in Posi-
tion Control
2
Set the reference pulse form with Pn200.0 according to the output pulse form of the 
host pulse reference form.
5.4.1  Basic Settings for 
Position Control
3
Set the reference unit, and then set the electronic gear ratio according to the host con-
troller. The electronic gear ratio is set in Pn20E and Pn210.
5.4.4  Electronic Gear
4 Turn ON the main circuit power supply of the SERVOPACK and converter. −
5 Turn ON the servo ON (/S-ON) input signal. −
6
Output a low-speed pulse reference for an easy-to-check number of rotations (e.g., 
one rotation) from the host controller.
−
7
Check the number of reference pulses input to the SERVOPACK from the changes in 
the input reference pulse monitor before and after the reference.
The input reference pulse can be checked with Un00C.
−
Note: To ensure safety, set the reference pulse speed so that the motor speed will be 
around 100 min
-1
.