2.8 L: Protection Functions
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide 215
n L6-08: Mechanical Weakening Detection Operation
Sets the speed range to detect mechanical weakening and the action to take when mechanical weakening is detected.
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 operation continues, 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 operation continues, but an oL5 alarm is output.
Setting 3: Stop when motor speed is greater than L6-09 (signed)
Detection when the speed is above L6-09 (signed). Upon detection 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 operation is stopped and an oL5 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 operation continues, but a UL5 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 operation continues, but a UL5 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 operation is stopped and a UL5 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 a UL5 fault is output.
n
L6-09: Mechanical Weakening Detection Speed Level
Sets the speed level for Mechanical Weakening Detection.
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 (negative settings are treated as positive values).
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.
n
L6-11: Mechanical Weakening Detection Start Time
Sets the drive 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
L6-08 Mechanical Weakening Detection Operation 0 to 8 0
No. Name Setting Range Default
L6-09 Mechanical Weakening Detection Speed Level -110.0 to 110.0% 110.0%
No. Name Setting Range Default
L6-10 Mechanical Weakening Detection Time 0.0 to 10.0 s 0.1 s
No. Name Setting Range Default
L6-11 Mechanical Weakening Detection Start Time 0 to 65535 h 0 h
MV1000ParameterGuide_E_conditional.book 215 ページ ２０１３年１０月１１日 金曜日 午後８時１８分
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