YASKAWA iQpump Micro CIMR-PW Series User Manual page 206

5.8 L: Protection Functions
H2-01 /02/03 Setting
B
17
18
19
Figure 5.76 and Figure 5.77
Note: The torque detection function uses a hysteresis of 10% of the drive rated output current/motor rated torque.
Note: When overtorque occurs in the application, the drive may stop due to overcurrent (oC) or overload (oL1). To prevent this, an overload
situation should be indicated to the controller before oC or oL1 occur in the drive. Use the torque detection for this purpose. Use undertorque
detection to discover application problems like a torn belt, a pump shutting off, or other similar trouble.
L6-01/L6-04: Torque Detection Selection 1/2
n
The torque detection function is triggered when the current/torque exceeds the levels set in parameter L6-02/L6-05 for longer
than the time set in L6-03L6-/06. The parameters L6-01/L6-04 select the detection condition and the operation at detection.
No.
L6-01/ L6-04
Setting 0: Disabled
Setting 1: oL3/oL4 at Speed Agree - Alarm
Overtorque detection is active only when the output speed is equal to the frequency reference, i.e., no detection during
acceleration and deceleration. The operation continues after detection and an oL3/oL4 alarm is triggered.
Setting 2: oL3/oL4 at Run - Alarm
Overtorque detection works whenever a Run command is active. The operation continues after detection and an oL3/oL4
alarm is triggered.
Setting 3: oL3/oL4 at Speed Agree - Fault
Overtorque detection is active only when the output speed is equal to the frequency reference, i.e., no detection during
acceleration and deceleration. The operation is stopped and an oL3/oL4 fault is triggered.
206
Torque detection 1, N.O. (output close when over-/underload is detected)
Torque detection 1, N.C. (output opens when over-/underload is detected)
Torque detection 2, N.O. (output close when over-/underload is detected)
Torque detection 2, N.C. (output opens when over-/underload is detected)
show the function of overtorque and undertorque detection.
Motor current / torque
L6-02/05
Torque detection 1 (NO)
or
Torque detection 2 (NO)
Figure 5.76 Overtorque Detection Operation
Motor current / torque
L6-02/05
Torque detection 1 (NO)
or
Torque detection 2 (NO)
Figure 5.77 Undertorque Detection Operation
Name
Torque Detection Selection 1/2
Description
10 % hysteresis
L6-03/06
L6-03/06
ON
10 % hysteresis
L6-03/06
ON
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
10 % hysteresis
ON
L6-03/06
ON
Setting Range
0 to 8
Default
0