YASKAWA AC Drive-A1000 Technical Manual page 432

B.10 L: Protection Function
No.
(Addr. Name
Hex)
Torque Detection
L6-04
Selection 2
(4A4)
Torque Detection
L6-05
Level 2
(4A5)
Torque Detection
L6-06
Time 2
(4A6)
L6-08 Mechanical Weakening
(468) Detection Operation
L6-09 Mechanical Weakening
(469) Detection Speed Level
L6-10 Mechanical Weakening
(46A) Detection Time
L6-11 Mechanical Weakening
(46B) Detection Start Time
432
All Modes
0: Disabled
1: oL4 detection only active during speed agree, operation continues after
detection
2: oL4 detection always active during run, operation continues after detection
3: oL4 detection only active during speed agree, output shuts down on an oL4
fault
4: oL4 detection always active during run, output shuts down on an oL4 fault
5: UL4 detection only active during speed agree, operation continues after
detection
6: UL4 detection always active during run, operation continues after detection
7: UL4 detection only active during speed agree, output shuts down on an oL4
fault
8: UL4 detection always active during run, output shuts down on an oL4 fault
All Modes
Sets the overtorque and undertorque detection level.
All Modes
Sets the time an overtorque or undertorque condition must exist to trigger
torque detection 2.
All Modes
This function can detect an overtorque or undertorque in a certain speed range
as a result of machine fatigue. It is triggered by a specified operation time and
uses the oL1 detection settings (L6-01 and L6-03).
0: Mechanical Weakening Detection disabled.
1: Continue running (alarm only). Detected when the speed (signed) is greater
than L6-09.
2: Continue running (alarm only). Detected when the speed (not signed) is
greater than L6-09.
3: Interrupt drive output (fault). Detected when the speed (signed) is greater
than L6-09.
4: Interrupt drive output (fault). Detected when the speed (not signed) is greater
than L6-09.
5: Continue running (alarm only). Detected when the speed (signed) is less
than L6-09.
6: Continue running (alarm only). Detected when the speed (not signed) is less
than L6-09.
7: Interrupt drive output (fault). Detected when the speed (signed) is less than
L6-09.
8: Interrupt drive output (fault). Detected when the speed (not signed) is less
than L6-09.
All Modes
Sets the speed that triggers Mechanical Weakening Detection. When L6-08 is
set for an unsigned value, the absolute value is used if the setting is negative.
All Modes
Sets the time mechanical weakening has to be detected before an alarm or fault
is triggered.
All Modes
Sets the operation time (U1-04) required before Mechanical Weakening
Detection is active.
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
Description Values Page
Default: 0
259
Range: 0 to 8
Default: 150%
Min.: 0 260
Max.: 300
Default: 0.1 s
Min.: 0.0 260
Max.: 10.0
Default: 0
260
Range: 0 to 8
Default: 110.0%
Min.: -110.0 261
Max.: 110.0
Default: 0.1 s
Min.: 0.0 261
Max.: 10.0
Default: 0
Min.: 0 261
Max.: 65535