Chapter 4 Operation
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4.7.2 Torque Reference Input
By applying a torque reference determined by the analog voltage reference to the servodrive, the
servomotor torque can be controlled in proportion with the input voltage.
■Checking the internal torque reference
1.Checking the internal torque reference with the panel operator.
Use the Monitor Mode(Un003). Refer to
5.1.6
5.1.6
5.1.6
5.1.6 Operation
Operation
Operation
Operation in
in
in
in Monitor
Monitor
Monitor
Monitor Mode.
Mode.
Mode.
Mode.
2.Checking the internal torque reference with an analog monitor.
The internal torque reference can also be checked with an analog monitor.
Type
Type
Type
Type
Signal
Signal
Signal
Signal
Name
Name
Name
Name
Connector
Connector
Connector
Connector Pin
Pin
Pin
Pin
Number
Number
Number
Number
Meaning
Meaning
Meaning
Meaning
Input
T-REF+
CN1-26
Torque Reference Input
T-REF-
CN1-27
AGND
CN1-28
Signal Ground for Torque Reference Input
Used during torque control (analog voltage reference)
(Pn005.1=2
，
6
，
8
，
9)
The torque reference input gain is set in Pn400. For
setting details, refer to
4.7.1
4.7.1
4.7.1
4.7.1 Setting
Setting
Setting
Setting Parameters
Parameters
Parameters
Parameters
.
■Input specifications
· Input range:DC±1V
～
±10V/rated torque
· Max. allowable input voltage:DC±12V
· Factory setting
Pn400=30
：
Rated torque at 3V
+3V input
：
Rated torque in forward direction
+9V input
：
300% rated torque in forward direction
-0.3V input
：
10% rated torque in reverse direction
The voltage input range can be changed with parameter Pn400.
■Input circuit example
Use twisted-pair wires as a countermeasure against noise.
1 0 0
1 0 0
1 0 0
1 0 0
2 0 0
2 0 0
2 0 0
2 0 0
3 0 0
3 0 0
3 0 0
3 0 0
Reference torque
Reference torque
Reference torque
Reference torque
（
%
%
%
%
）
0
0
0
0
3
3
3
3
4
4
4
4
8
8
8
8
1 2
1 2
1 2
1 2
In p u t volt age
In p u t volt age
In p u t volt age
In p u t volt age((((V
V
V
V))))
----1 0 0
1 0 0
1 0 0
1 0 0
----2 0 0
2 0 0
2 0 0
2 0 0
----3 0 0
3 0 0
3 0 0
3 0 0
S e t th e slop e with Pn
S e t th e slop e with Pn
S e t th e slop e with Pn
S e t th e slop e with Pn 4 0 0
4 0 0
4 0 0
4 0 0 ....
----4
4
4
4
----8
8
8
8
----1 2
1 2
1 2
1 2
Fac tor y se ttin g
Fac tor y se ttin g
Fac tor y se ttin g
Fac tor y se ttin g
