5.5 Torque Control
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5.5
Torque Control
This section describes operation with torque control.
Input the torque reference to the multi-winding drive unit using an analog reference and control the servomo-
tor operation with the torque in proportion to the input voltage.
Select the torque control with parameter Pn000.1.
5.5.1
Basic Settings for Torque Control
This section describes the basic settings for torque control.
(1) Signal Setting
Set the following input signals.
Maximum input voltage:
±
12 VDC
Input Circuit Example
Example
Pn400 = 0003.0 : Motor rated torque at 3.0 V [Factory setting]
Note: The value is 30, but it will be displayed on the operator as 0003.0.
Connect the pins for the T-REF signal and SG to the analog reference output terminal on the host controller
when using a host controller, such as a programmable controller, for torque control.
Note: Always use twisted-pair cables to control noise.
Parameter
Meaning
When Enabled Classification
Pn000
n.
2
Torque control
After restart
Setup
Type
Signal Name
Connector
Pin Number
Name
Input
T-REF
CN1-9
Torque reference input
SG
CN1-10
Signal ground for torque reference input
Speed Reference Input
Rotation Direction
Torque
+3 V
Forward
Rated torque
+1 V
Forward
1/3 rated torque
-1.5 V
Reverse
1/2 rated torque
SG
CN1
10
T-REF
9
D/A
0 V
Multi-winding drive unit
Host
controller
Approx.
14 k
Ω
