Setting 3: Stop when Motor Speed is Greater than L6-09 (signed)
Detection when the speed is above L6-09 (signed). Upon detection the operation is stopped and an oL5 fault is output.
Setting 4: Stop when Motor Speed is Greater than L6-09
Detection when the speed is above L6-09 (unsigned). Upon detection the operation is stopped and an fault is output.
Setting 5: Continue Running if the Speed is less than L6-09 (signed) - Alarm
Detection when the speed is below L6-09 (signed). Upon detection the operation is continued but an oL5 alarm is output.
Setting 6: Continue Running if the Speed is less than L6-09 - Alarm
Detection when the speed is below L6-09 (unsigned). Upon detection the operation is continued but an oL5 alarm is output.
Setting 7: Stop when Motor Speed is less than L6-09 (signed)
Detection when the speed is below L6-09 (signed). Upon detection the operation is stopped and an oL5 fault is output.
Setting 8: Stop when Motor Speed is less than L6-09
Detection when the speed is below L6-09 (unsigned). Upon detection the operation is stopped and an oL5 fault is output.
n
L6-09: Mechanical Weakening Detection Speed Level
Sets the speed level that defines the speed range for mechanical weakening detection.
No.
Name
Setting Range
Default
L6-09
Mechanical Weakening Detection Speed Level
-110.0 to 110.0%
110%
The value is set as a percentage of the maximum frequency. If L6-08 is set for unsigned speed detection (L6-08 = 2, 4, 6,
8) then the absolute value of L6-09 is used, i.e., negative settings will be treated as positive.
n
L6-10: Mechanical Weakening Detection Time
Sets the time permitted for the situation selected in parameter L6-08 to arise before mechanical weakening is detected.
No.
Name
Setting Range
Default
L6-10
Mechanical Weakening Detection Time
0.0 to 10.0 s
0.1 s
n
L6-11: Mechanical Weakening Detection Start Time
Sets the drives cumulative operation time at which mechanical weakening detection is activated. If U4-01 reaches the
L6-11 value, the function is activated.
No.
Name
Setting Range
Default
L6-11
Mechanical Weakening Detection Start Time
0 to 65535 h
0 h
u
L7: Torque Limit
The torque limit function can be used to limit the torque in each of the four quadrants individually and thereby protect the
machinery. It can be used in the Open Loop Vector Control mode. A digital output programmed for “During Torque
Limit” (H2-01/02/03 = 30) can be switched when the drive is operating at the torque limit.
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L7-01/02/03/04: Torque Limits
These parameters set the torque limits in each operation mode.
No.
Name
Setting Range
Default
L7-01
Forward Torque Limit
0 to 300%
200%
L7-02
Reverse Torque Limit
0 to 300%
200%
L7-03
Forward Regenerative Torque Limit
0 to 300%
200%
L7-04
Reverse Regenerative Torque Limit
0 to 300%
200%
Note:
If the multi-function analog input is programmed for “10: Positive Torque Limit”, “11: Negative Torque Limit”, “12: Regenerative Torque
Limit”, or “15: General Torque Limit”, the drive uses the lower value of either L7-01 through L7-04, or analog input torque limit.
Refer
to Setting 10/11/12/15: Positive/Negative/Regenerative/General Torque Limit (OLV only) on page 181
for details on using analog torque
limits.
n
L7-06: Torque Limit Integral Time Constant
Sets the integral time constant for the torque limit function.
No.
Name
Setting Range
Default
L7-06
Torque Limit Integral Time Constant
5 to 10000 ms
200 ms
5.8 L: Protection Functions
202
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
7/16/2008-13:23