4.3 Trial Operation for Servomotor without Load from Host Reference
4-7
4
Tria
l Ope
ra
tio
n
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
.
