YASKAWA A1000 HHP - L7: Torque Limit

No.
(Addr.
Hex)
Name Description Values Page
L6-08
(468)
Mechanical Weakening
Detection Operation
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.
Default: 0
Range: 0 to 8
150
L6-09
(469)
Mechanical Weakening
Detection Speed Level
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.
Default: 110.0%
Min.: -110.0
Max.: 110.0
150
L6-10
(46A)
Mechanical Weakening
Detection Time
All Modes
Sets the time mechanical weakening has to be detected before an alarm or fault
is triggered.
Default: 0.1 s
Min.: 0.0
Max.: 10.0
151
L6-11
(46B)
Mechanical Weakening
Detection Start Time
All Modes
Sets the operation time (U1-04) required before Mechanical Weakening
Detection is active.
Default: 0 h
Min.: 0
Max.: 65535
151
u
L7: Torque Limit
No.
(Addr.
Hex)
Name Description Values Page
L7-01
(4A7)
Forward Torque Limit
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
AOLV/PM
OLV
CLV/PM
CLV
Sets the torque limit value as a percentage of the motor rated torque. Four
individual quadrants can be set.
L7-01
L7-03
L7-02
L7-04
Output Torque
Positive Torque
REV
Negative Torque
FWD
Motor
r/min
Regeneration
Regeneration
Default: 200%
Min.: 0
Max.: 300
151
L7-02
(4A8)
Reverse Torque Limit
Default: 200%
Min.: 0
Max.: 300
151
L7-03
(4A9)
Forward Regenerative
Torque Limit
Default: 200%
Min.: 0
Max.: 300
151
L7-04
(4AA)
Reverse Regenerative
Torque Limit
Default: 200%
Min.: 0
Max.: 300
151
L7-06
(4AC)
Torque Limit Integral Time
Constant
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVOLV
Sets the integral time constant for the torque limit.
Default: 200 ms
Min: 5
Max: 10000
152
L7-07
(4C9)
Torque Limit Control
Method Selection during
Accel/Decel
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVOLV
0: Proportional control (changes to integral control at constant speed). Use this
setting when acceleration to the desired speed should take precedence over the
torque limit.
1: Integral control. Set L7-07 to 1 if the torque limit should take precedence.
Default: 0
Range: 0, 1
152
A.10 L: Protection Function
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
287
A
Parameter List