Yaskawa VS-616PS5 Series Programming Manual - Manual (Page 88)

88 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