YASKAWA Varispeed G7 Series Instruction Manual page 365

Inputting Torque References and Torque Reference Directions
The torque reference can be changed according to an analog input by setting H3-09 (Multi-function analog
input terminal A2 selection) or H3-05 (Multi-function analog input terminal A3 selection) to 13 (torque refer-
ence) or 14 (torque compensation). The torque reference input methods are listed in the following table.
Torque Reference Input
Voltage input (-10 to 10 V)
Current input (4 to 20 mA)
Option board (AI-14B)
(-10 to 10 V)
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).
Application Precautions
If the analog signal input level is 0 to 10 V or 4 to 20 mA, a forward torque reference will not be applied. To
apply reverse torque, use an input level of -10 V to 10 V or switch the direction using a multi-function input
set to 78 (polarity Reverse Command for external torque reference).
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Reference Location
Method
Between A3 and AC
Between A2 and AC
(Turn OFF pin 2 of
SW1.)
Between A2 and AC
(Turn ON pin 2 of
SW1.)
Between TC2 and TC4
Selection
Method
Set H3-04 to 0 for a 0 to 10-V torque ref-
erence.
H3-04 = 1
To switch the torque reference between
H3-05 = 13
positive and negative torque, set a multi-
function analog input to 78.
Set H3-08 to 0 for a 0 to 10-V torque ref-
erence.
To switch the torque reference between
H3-08 = 1
positive and negative torque, set a multi-
H3-09 = 13
function analog input to 78.
The input can be used for torque compen-
sation by setting H3-09 to 14.
To switch the torque reference between
positive and negative torque, set a multi-
H3-08 = 2
function analog input to 78.
H3-09 = 13
The input can be used for torque compen-
sation by setting H3-09 to 14.
F2-01 = 0
The input can be used for torque compen-
H3-08 = 1
sation by setting H3-05 to 14.
H3-09 = 13
Remarks