Detection Of Output Torque (Tu Signal, Pr. 864) - Mitsubishi Electric FR-A700 Instruction Manual

Function assignment of external terminals
6.14.8

Detection of output torque (TU signal, Pr. 864)

Output the signal when the motor torque rises above the setting value. This function can be
used for electromagnetic brake operation, open signal, etc.
Pr.
Name
No.
864
Torque detection
When the output torque reaches or exceeds the detected torque value set in Pr. 864 under real
sensorless vector control, advanced magnetic flux vector control or vector control, the torque
detection signal (TU) turns on.It turns off when the torque falls below the detection torque value.
For the TU signal, set "35 (source logic) or 135 (sink logic)" in Pr. 190 to Pr. 196 (output terminal
function selection) and assign functions to the output terminal.
Fig. 6-140: Torque detection
NOTE When terminal assignment is changed using Pr. 190 to Pr. 196 "Output terminal function
selection", the other functions may be affected. Please make setting after confirming the
function of each terminal.
6 - 314
Initial Setting
Description
Value Range
Set the torque value where the TU signal
150% 0–400%
turns on.
Output torque [%]
Pr. 864
TU
Sensorless Sensorless Sensorless Magnetic flux Magnetic flux Magnetic flux
Parameters referred to
190–196 Output terminal
function selection
OFF
ON
Parameter
Vector Vector Vector
Refer to
Section
6.14.5
Time
I001597E