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VS-616PS5 Programming Manual
L6
Torque Detection
The overtorque detection circuit activates when the motor load causes the motor cur-
rent (or torque during vector control) to exceed the overtorque detection level
(L6-02)
.
When an overtorque condition is detected, an “OL3” indication is generated on the
digital operator.
To output an overtorque detection signal, select torque detection 1 at either of the
multi-function contact outputs (
H2-XX
= “B” or “17”). Refer to section
H2
:
Digital
Outputs
, for more details.
Activates overtorque detection, and selects whether detection generates an alarm or
a fault.
Notes:
1. To detect torque during acceleration or deceleration, set to “2” or “4.”
2. To continue operation after overtorque detection, set to “1” or “2.” During detec-
tion, the digital operator displays an “
OL3
” alarm (blinking).
3. To stop the inverter (fault) after upon overtorque detection fault, set to “3” or “4.”
During detection, the digital operator displays an “
OL3
” fault.
L6-01 Overtorque Detection 1 Selection
B
Setting
Description
0
Overtorque detection is disabled
(factory default).
1
Overtorque detection is enabled whenever at the speed agree level (when inverter is not accel-
erating or decelerating). Continue running after detection (OL3 alarm).
2
Overtorque detection is enabled always. Continue running after detection (OL3 alarm).
3
Overtorque detection is enabled whenever at the speed agree level. Coast to a stop after detec-
tion (OL3 fault).
4
Overtorque detection is enabled always. Coast to a stop after detection (OL3 fault).
* Release width (hysteresis) during overtorque detection is 5% of the inverter rated current level.
Inverter Rated Current
L6-02
Time
ON
ON
L6-03
L6-03
Multi-function Contact
Output Signal
(Overtorque Detection Signal)
Terminal 9, 25, 26
*
*
Figure 54 Overtorque Characteristics Timing Diagram
Motor Current
Section L: Protection Parameters
L6 Torque Detection
