Yaskawa AC Drive-P1000 Industrial Fan User Manual
Page 255
H2-01, H2-02, H2-03
Setting
Description
B
Torque detection 1, N.O. (output closes when overload or underload is detected)
17
Torque detection 1, N.C. (output opens when overload or underload is detected)
18
Torque detection 2, N.O. (output closes when overload or underload is detected)
19
Torque detection 2, N.C. (output opens when overload or underload is detected)
and
illustrate the functions of overtorque and undertorque detection.
Motor current / torque
L6-02/05
10 % hysteresis
Torque detection 1 (NO)
or
Torque detection 2 (NO)
L6-03/06
ON
L6-03/06
10 % hysteresis
ON
Figure 5.82 Overtorque Detection Operation
Motor current / torque
L6-02/05
10 % hysteresis
Torque detection 1 (NO)
or
Torque detection 2 (NO)
L6-03/06
ON
L6-03/06
ON
Figure 5.83 Undertorque Detection Operation
Note:
1. The torque detection function uses a hysteresis of 10% of the drive rated output current and motor rated torque.
2. The level is set as a percentage of the drive rated output current. .
n
L6-01, L6-04: Torque Detection Selection 1, 2
The torque detection function is triggered when the current or torque exceed the levels set to L6-02 and L6-05 for longer than
the times set to L6-03 and L6-06. L6-01 and L6-04 select the conditions for detection and the operation that follows.
No.
Name
Setting Range
Default
L6-01
Torque Detection Selection 1
0 to 12
0
L6-04
Torque Detection Selection 2
0 to 8
0
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 detecting overtorque and triggering an oL3/oL4 alarm.
Setting 2: oL3, oL4 at run (Alarm)
Overtorque detection works as long as the Run command is active. The operation continues after detecting overtorque and
triggering an oL3/oL4 alarm.
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 stops and triggers an oL3/oL4 fault.
Setting 4: oL3, oL4 at run (Fault)
Overtorque detection works as long as a Run command is active. The operation stops and triggers an oL3/oL4 fault.
5.8 L: Protection Functions
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual
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5
Parameter Details