YASKAWA SGDV SERVOPACK - Trial Operation under Position Control from the Host Controller; With the SERVOPACK Used for Speed Control

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4.3 Trial Operation for Servomotor without Load from Host Reference
4-7
4
Trial Operation
4.3.3 Trial Operation under Position Control from the Host Controller with the
SERVOPACK Used for Speed Control
To operate the SERVOPACK 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 Con-
trol
.
Step Operation Reference
1
Recheck the power supply and the input signal circuits, and turn
ON the SERVO-
PACK control power supply.
3.2.3 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 resolution (Pn281).
5.3.7 Setting Encoder
Output Pulse
4 Turn ON the main circuit power supply of the SERVOPACK. 
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 moves at a very low speed with the speed reference
input at
0 V, adjust the reference offset so that the servomotor will not move.
5.3.2 Reference Offset
Adjustment
6
To check the speed of the servomotor, execut
e a constant speed reference at a low
speed through the host controller.
Example: Visually check that the servomotor
moves once per second with a speed
reference of 60 mm/s.
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 movement of the servomotor
, execute a simple positioning reference
through the host controller.
Example: Input a reference that is equivalent to
100 mm of movement for the servo-
motor. To confirm that the servomotor
moved 100 mm, do a visual check or
check the feedback pulse counter (Un00D [pulse])
Note: If the movement 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). 