Yaskawa Matrix Converter - Manual (Page 275)

6
-110
Monitor Function
„ Inputting Torque References and Torque Reference Directions
The torque reference can be changed according to an analog input by setting H3-09 (Terminal A2 Function
Selection) or H3-05 (Terminal A3 Function Selection) to 13 (torque reference) or 14 (torque compensation).
The torque reference input methods are listed in the following table.
The direction of the torque output from the motor will be determined by the sign of the analog signal input. It
does not depend on the direction of the Run Command. The direction of torque will be as follows:
• Positive analog reference: Torque reference for forward motor rotation (counterclockwise as viewed from
the motor output axis).
• Negative analog reference: Torque reference for reverse motor rotation (clockwise as viewed from the
motor output axis).
Parameter
Number
Name
Description
Output Signal Level
During Multi-Function
Analog Output
Min.
Unit
Control Methods
Display V/f
Open
Loop
Vector
Flux
Vector
U1-09
Torque reference
Monitors internal torque reference
value for vector control. 10 V: Motor rated torque
(-10 V to +10 V possible) 0.1
%
No A A
Torque Reference
Torque Reference Input
Method
Reference Location
Selection
Method
Remarks
Voltage input (0 to ± 10 V)
Between A3 and AC
H3-04 = 1
H3-05 = 13
Set H3-04 to 0 for a 0 to 10 V torque ref-
erence.
To switch the torque reference between
positive and negative torque, set a multi-
function analog input to 78.
Between A2 and AC
(Turn off pin 2 of
SW1.)
H3-08 = 1
H3-09 = 13
Set H3-08 to 0 for a 0 to 10 V torque ref-
erence.
To switch the torque reference between
positive and negative torque, set a multi-
function analog input to 78.
The input can be used for torque compen-
sation by setting H3-09 to 14.
Current input (4 to 20 mA)
Between A2 and AC
(Turn on pin 2 of
SW1.)
H3-08 = 2
H3-09 = 13
To switch the torque reference between
positive and negative torque, set a multi-
function analog input to 78.
The input can be used for torque compen-
sation by setting H3-09 to 14.
Option card (AI-14B)
(0 to
± 10 V)
Between TC2 and TC4
F2-01 = 0
H3-08 = 1
H3-09 = 13
The input can be used for torque compen-
sation by setting H3-05 to 14.