YASKAWA Sigma Mini SGMM Series User Manual page 80

Parameter Cn-03 can be used to change the voltage input range. (This is also applicable
to speed restriction.)
Example of Input Circuit:
See the figure on the right.
• For noise control, always use twisted-
pair cable.
• Example of Variable Resistor for Speed Setting:
Model 25HP-10B manufactured by Sakae Tsushin Kogyo Co., Ltd.
Parameters
Set the following parameters for torque control according to the Servo system used.
TCRFGN
Cn-13 Torque Reference
Gain
Sets the voltage range of torque reference input
T-REF according to the output form of the host
controller or external circuit.
The factory setting is 30, so the rated torque is 3 V (30 x 0.1).
TCRLMT
Speed Limit for Torque
Cn-14
Control
Sets a motor speed limit value in this constant
when torque control is selected.
This parameter is used to prevent machine over-
speed during torque control.
For torque control, set bits A and B of memory switch Cn-01.
VREFGN
Cn-03 Speed Reference
Gain
Sets the voltage range of speed reference input
V-REF according to the output form of the host
controller or external circuit.
The factory setting is 500 [rated speed
−1
(3000 min )/6 V = 500].
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2.2Setting Parameters According to Host Controller
470 Ω
+12 V
Unit: Setting
0.1 V/Rated Range:
Torque 10 to 100
Reference torque
Unit: Setting Factory
−1
min Range: 0 to Setting:
Maximum Maximum
Speed Speed
Control Range for Torque Control
Unit: Setting Factory
−1
(min )/V Range: 0 Setting:
to 2162 500
— 2-35 —
Servopack
1/2 W or more
V-REF
CN1-12
2 kΩ
SG
CN1-13
Factory For Speed/Torque
Setting: Control
30
Rated torque
Reference
voltage (V)
Set this reference voltage.
For Speed/Torque
Control Only
Motor speed
TCRLMT
Torque
control
range
Torque
For Speed/Torque
Control
Set this
Reference
slope.
speed
−1
(min )
Reference
voltage (V)
2