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.
Setting 4: oL3/oL4 at Run - Fault
Overtorque detection works whenever a Run command is active. The operation is stopped and an oL3/oL4 fault is triggered.
Setting 5: UL3/UL4 at Speed Agree - Alarm
Undertorque 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 6: UL3/UL4 at Run - Alarm
Undertorque detection works whenever a Run command is active. The operation continues after detection and an oL3/oL4
alarm is triggered.
Setting 7: UL3/UL4 at Speed Agree - Fault
Undertorque 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.
Setting 8: UL3/UL4 at Run - Fault
Undertorque detection works whenever a Run command is active. The operation is stopped and an oL3/oL4 fault is
triggered.
n
L6-02/L6-05: Torque Detection Level 1/2
These parameters the detection levels for the torque detection functions 1 and 2.
No.
Name
Setting Range
Default
L6-02
Torque Detection Level 1
0 to 300%
150%
L6-05
Torque Detection Level 2
0 to 300%
150%
Note:
The torque detection level 1 (L6-02) can also be supplied by an analog input set to H3-02/10 = 7. In this case the analog value has priority
and the setting L6-02 is disregarded. Torque detection level 2 (L6-05) can not be set by an analog input.
n
L6-03/L6-06: Torque Detection Time 1/2
These parameters set the time that the levels set in L6-02/05 have to be exceeded before an alarm/fault is triggered.
No.
Name
Setting Range
Default
L6-03
Torque Detection Time 1
0.0 to 10.0 s
0.1 s
L6-06
Torque Detection Time 2
0.0 to 10.0 s
0.1 s
n
Mechanical Weakening Detection
This function can be used to detect mechanical weakening of a machine that leads to overtorque or undertorque situations
after a certain machine operation time has elapsed.
The function is activated in the drive when the cumulative operation counter U4-01 exceeds the time set in parameter
L6-11. Mechanical weakening detection uses the torque detection 1 settings (L6-01/02/03) and triggers an oL5 fault when
overtorque or undertorque occurs in the speed range determined by parameter L6-08/09. The oL5 operation is set by
parameter L6-08.
To output a signal for mechanical weakening detection, set H2-01, H2-02, or H2-03 to 22.
n
L6-08: Mechanical Weakening Detection Operation
Decides which speed range the function is active and sets the mechanical weakening detection operation.
No.
Name
Setting Range
Default
L6-08
Mechanical Weakening Detection
0 to 8
0
Setting 0: Disabled
Setting 1: Continue Running if the Speed is Greater than L6-09 (signed) - Alarm
Detection when the speed is above L6-09 (signed). Upon detection the operation is continued but an oL5 alarm is output.
Setting 2: Continue Running if the Speed is Greater than L6-09 - Alarm
Detection when the speed is above L6-09 (unsigned). Upon detection the operation is continued but an oL5 alarm is output.
5.8 L: Protection Functions
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
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Parameter Details
7/16/2008-13:23
