2.2Setting Parameters According to Host Controller
— 2-35 —
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.
Cn-13
TCRFGN
Torque Reference
Gain
Unit:
0.1 V/Rated
Torque
Setting
Range:
10 to 100
Factory
Setting:
30
For Speed/Torque
Control
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).
Cn-14
TCRLMT
Speed Limit for Torque
Control
Unit:
min
−1
Setting
Range: 0 to
Maximum
Speed
Factory
Setting:
Maximum
Speed
For Speed/Torque
Control Only
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.
Cn-03
VREFGN
Speed Reference
Gain
Unit:
(min
−1
)/V
Setting
Range: 0
to 2162
Factory
Setting:
500
For Speed/Torque
Control
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
(3000 min
−1
)/6 V = 500].
2
SG
V-REF
+12 V
Servopack
CN1-12
CN1-13
470 Ω
2kΩ
1/2 W or more
Reference torque
Rated torque
Reference
voltage (V)
Set this reference voltage.
Control Range for Torque Control
Motor speed
TCRLMT
Torque
Torque
control
range
Reference
speed
(min
−1
)
Set this
slope.
Reference
voltage (V)
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