L7: Torque Limit - YASKAWA A1000 Series Quick Start Manual

No.
(Addr. Name
Hex)
L6-06 Torque Detection
(04A6) Time 2
L6-08 Mechanical Weakening
(0468) Detection Operation
L6-09 Mechanical Weakening
(0469) Detection Speed Level
L6-10 Mechanical Weakening
(046A) Detection Time
L6-11 Mechanical Weakening
(046B) Detection Start Time
u

L7: Torque Limit

No.
(Addr. Name
Hex)
L7-01
(04A7) Forward Torque Limit
L7-02
Reverse Torque Limit
(04A8)
L7-03 Forward Regenerative
(04A9) Torque Limit
L7-04 Reverse Regenerative
(04AA) Torque Limit
L7-06 Torque Limit Integral
(04AC) Time Constant
Torque Limit Control
L7-07
Method Selection during
(04C9)
Accel/Decel
L7-16
Torque Limit Process at
(044D)
Start
<1>
<1> Available in drive software versions PRG: 1018 and later.
YASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide
LCD Display
Sets the time an overtorque or undertorque condition must exist
Torq Det 2 Time
to trigger torque detection 2.
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 oL3/UL3 detection
settings (L6-01, L6-02, and L6-03).
0: Mechanical Weakening Detection disabled.
1: Continue running (alarm only). Detected when the speed
Mech Fatigue Sel
(signed) is greater than L6-09.
0: Disabled
2: Continue running (alarm only). Detected when the speed (not
1: Alm Spd>L6-09
signed) is greater than L6-09.
2: Alm [Spd]>L6-09
3: Interrupt drive output (fault). Detected when the speed
3: Flt Spd>L6-09
(signed) is greater than L6-09.
4: Flt [Spd]>L6-09
4: Interrupt drive output (fault). Detected when the speed (not
5: Alm Spd<L6-09
signed) is greater than L6-09.
6: Alm [Spd]<L6-09
5: Continue running (alarm only). Detected when the speed
7: Flt Spd<L6-09
(signed) is less than L6-09.
8: Flt [Spd]<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.
Sets the speed that triggers Mechanical Weakening Detection.
MechFat Det Spd When L6-08 is set for an unsigned value, the absolute value is
used if the setting is negative.
Sets the time mechanical weakening has to be detected before
MechFat Det Time an alarm or fault is triggered.
Sets the operation time (U4-01) required before Mechanical
MechFat Det Hour Weakening Detection is active.
LCD Display
Sets the torque limit value as a percentage of the motor rated
Torq Limit Fwd torque. Four individual quadrants can be set.
Torq Limit Rev
REV
Torq Lmt Fwd Rgn
Torq Lmt Rev Rgn
Sets the integral time constant for the torque limit.
Trq Lim I Time
0: Proportional control (changes to integral control at constant
Trq Lim d AccDec speed). Use this setting when acceleration to the desired speed
P-ctrl @ Acc/Dec should take precedence over the torque limit.
I-ctrl @ Acc/Dec 1: Integral control. Set L7-07 to 1 if the torque limit should take
precedence.
TLim DlyTime Sel
0: Disabled
0: Disabled
1: Enabled
1: Enabled
Description
Description
Output Torque
Positive Torque
L7-01
L7-04
Motor
r/min
Regeneration
FWD
Regeneration
L7-03
L7-02
Negative Torque
B.8 L: Protection Function
Values Page
Default: 0.1 s
Min.: 0.0
Max.: 10.0
Default: 0
Range: 0 to 8
Default: 110.0%
Min.: -110.0
Max.: 110.0
Default: 0.1 s
Min.: 0.0
Max.: 10.0
Default: 0 h
Min.: 0
Max.: 65535
Values Page
Default: 200%
Min.: 0 163
Max.: 300
Default: 200%
Min.: 0 163
Max.: 300
Default: 200%
Min.: 0 163
Max.: 300
Default: 200%
Min.: 0 163
Max.: 300
Default: 200 ms
Min: 5
Max: 10000
Default: 0
Range: 0, 1
Default: 1
Range: 0, 1
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B
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