YASKAWA SGD7S series Product Manual page 217

Setting the Speed Reference Input Gain (Pn300)
The reference voltage for the rated motor speed is set for the speed reference input gain
(Pn300) to define the relationship between the position reference voltage and the motor speed.
Speed Reference Input Gain
Setting Range
Pn300
150 to 3,000
Rated motor peed
Minimum input voltage (12 V)
- 0 -12
Adjusting the Speed Reference Offset
With speed control, the Servomotor may sometimes rotate at a very low speed for a speed ref-
erence of 0 V (with a reference speed of 0 or when the speed reference is stopped). This
occurs because the internal reference in the SERVOPACK has a slight offset.
If the Servomotor moves at a very low speed, the offset needs to be eliminated by adjusting the
offset.
You can adjust the speed reference offset either automatically or manually.
Motor peed
Off et
peed
reference
voltage
Setting Unit Default Setting
600 (rated speed
0.01 V
-1
Motor peed [min ]
Default etting
-6
1.5 6
etting range (1.50 V to 0.00 V)
Input range (0 V to 12 V)
Motor peed
Off et
adju tment
6.5.1 Basic Settings for Speed Control
Speed
When Enabled
Immediately
for 6.00 V)
Maximum input voltage (+12 V)
12 0
The off et i adju ted in the
ERVOPACK.
Off et adju tment range:
peed
15,000 ( peed reference: 879 mV)
reference
voltage
Off et etting unit: 8
( peed reference: 0.47 mV)
6.5 Speed Control
Position Torque
Classification
Setup
peed reference
voltage [V]
6-19
6