4-138
【1】: Dispay warning when low-torque is detected. Go on operation
08- 19
Level of low-torque detection
Range
【
0~300】%
08- 20
Time of low-torque detection
Range
【
0.0~10.0】Sec
. Over-torque detection function can increase mechanical load by detecting inverter
output current or motor output torque. Less torque detection function reduces the
inverter output current or the motor output torque by detecting mechanical load (e.g.
belt rupture).
. A treatment technology to determine whether it is over-torque (08-13~ 14) or less
torque (08-17 ~ 18) status is setting torque detection parameter
. Settings of over-torque (08-15) / less torque (08-19) detection level are determined by
the control method,
(1) For V / f control or V / f + PG control mode, it is 100% of inverter rated output
current.
(2) For SLV or SV control mode, the motor output torque is 100% of the rated
torque.
. Over-torque /less torque detection signals can be output to multi-function digital
output terminals (R1A-R1C, R2A-R2C), by setting parameters from 03-11 to 03-12
(multi-function digital output terminal function selection) to 12, 25. Refer to the
following figure 4.3.72 for relevant parameters.
Figure 4.3.72 Over-torque / less torque detection signals use multi-function digital signal output
terminal
. Setting Example of over-torque detection:
Figure 4.3.73 Over-torque detection operation
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