4-217
Low-torque detection
Parameter 08-18 selects low-torque detection function. An low-torque condition is detected when the output
current / torque falls below the level set in parameter 08-19 (low-torque detection level) for the time specified in
parameter 08-20 (Low-torque detection time).
08-17=0: Low-torque detection is disabled.
08-17=1:
Low-torque detection is enabled when the output frequency reaches the set frequency.
08-17=2:
Low-torque detection is enabled during running.
Parameter 08-18 selects the way the inverter acts when an over-torque condition is detected.
08-18=0: When a low-torque condition is detected the inverter displays and low-torque detection fault and the
motor decelerates to a stop.
08-18=1:
When a low-torque condition is detected the inverter displays a low-torque detection alarm and
continues to run.
08-18=2:
When a low-torque condition is detected the inverter displays and low-torque detection fault and the
motor coasts to a stop
. Setting Example of less torque detection:
Figure 4.4.74 Low torque detection operation
Over and low torque detection condition can be output to the multi-function digital outputs (R1A-R1C, R2A-R2C)
by setting parameters 03-11 to 03-12 to 12 or 25. Refer to figure 4.4.75 for more information.
Figure 4.4.75 Over-torque / low torque detection multi-function digital output terminal
To Next Page
Loading...
