IMPULSE•G+/VG+ Series 4 Technical Manual
November 2022
Page 166
Table 5-94: Torque Detection Setting Descriptions
NOTE:
•
To detect overtorque/undertorque during acceleration or deceleration, set to “2” or “4” / “6” or “8”.
•
To continue operation after overtorque/undertorque detection, set to “1” or “2” / “5” or “6” During detection, the
keypad displays an “OT1/UT1” alarm (blinking).
•
To stop the VFD after an overtorque/undertorque detection fault, set to “3” or “4” / “7” or “8”. During detection,
the keypad displays an “OT1/UT1” fault.
Table 5-95: Torque Detection Parameter Settings - continued
Settings
Description
0
Torque detection is disabled
(factory default)
.
1
Overtorque detection is enabled whenever at speed agree (when VFD is not accelerating or decelerating).
Continue running after detection (OT1 alarm).
2
Overtorque detection is enabled always. Continue running after detection (OT1 alarm).
3
Overtorque detection is enabled whenever at speed agree. Coast to a stop after detection (OT1 fault).
4
Overtorque detection is enabled always. Coast to a stop after detection (OT1 fault).
5
Undertorque detection is enabled whenever at speed agree (when VFD is not accelerating or decelerating).
Continue running after detection (UT1 alarm).
6
Undertorque detection is enabled always. Continuing running after detection (UT1 alarm).
7
Undertorque detection is enabled whenever at speed agree. Coast to a stop after detection (UT1 fault).
8
Undertorque detection is enabled always. Coast to stop after detection (UT1 fault)
Parameter
Display
Function
Range
Default
L06-02
Torq Det 1 Lvl
Overtorque detection as a percentage of
VFD rated current, during V/f control, and
motor rated torque during vector control.
0–300%
150
L06-03
Torq Det 1 Time
The overtorque detection delay time inserts a
delay, between the time motor current (or
torque) exceeds the overtorque level (L06-
02) and when the overtorque detection
function is enabled. Keypad displays “OT1”.
0.0–10.0 sec
0.1
L06-04
Torq Det 2 Sel
Activates overtorque/undertorque detection,
and selects whether detection generates an
alarm or a fault.
0-8
0
0 Disabled
1 OT@SpdAgree-Alm
2 OT At RUN - Alm
3 OT@SpdAgree-Flt
4 OT At RUN - Flt
5 UT@SpdAgree-Alm
6 UT At RUN - Alm
7 UT@SpdAgree-Flt
8 UT At RUN - Flt
