1.3  Parameter Table
68  YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
L7: Torque Limit
L7-01
(4A7H)
Forward Torque 
Limit
Sets the torque limit value as a percentage of the motor rated torque.
Four individual quadrants can be set.
Default: 100%
Min: 0%
Max: 300%
216
L7-02
(4A8H)
Reverse Torque 
Limit
Default: 100%
Min: 0%
Max: 300%
216
L7-03
(4A9H)
Forward 
Regenerative Torque 
Limit
Default: 1%
Min: 0%
Max: 300%
216
L7-04
(4AAH)
Reverse 
Regenerative Torque 
Limit
Default: 1%
Min: 0%
Max: 300%
216
L7-06
(4ACH)
Torque Limit 
Integral Time 
Constant
Sets the integral time constant for the torque limit. Increase the setting for 
faster torque limit response.
Default: 200 ms
Min: 5 ms
Max: 10000 ms
217
L7-07
(4C9H)
Torque Limit 
Control Method 
Selection during 
Accel/Decel
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
Min: 0
Max: 1
217
L7-16
(44DH)
Torque Limit 
Process at Start
0: A delay time is disabled
1: A delay time is enabled
Default: 1
Min: 0
Max: 1
217
L7-30
(1FDH)
Regenerative Torque 
Limit Mode 
Selection
Sets the mode for the regenerative torque limit.
0: Standard mode (torque limits entered from all analog inputs and through 
communications effective)
1: Independent mode (only the torque limits set with L7-03, L7-04, and 
regenerative torque limit effective (H3- = 12))
Default: 0
Min: 0
Max: 1
217
L7-32
(313AH)
Low Speed 
Regenerative Torque 
Limit Mode 
Selection
Sets the mode for the regenerative torque limit when the motor speed is 10% 
or less.
0: Follows the torque limit value. 
1: Lowers the lower limits for the regenerative torque limit when the motor 
speed is 10% or less.
Note: This para
meter 
is available from the drive software 
version S0104 and later.
Default: 1 
Min: 0 
Max: 1
217
L8: Drive Protection
L8-02
(4AEH)
Overheat Alarm 
Level
An overheat pre-alarm will occur if the thermistor temperature exceeds the 
level set in L8-02.
Default:
<6>
Min: 50°C
Max: 150°C
218
L8-03
(4AFH)
Overheat Pre-Alarm 
Operation Selection
0: Ramp to stop. A fault is triggered.
1: Coast to stop
2: Fast Stop. Decelerate to stop using the deceleration time in C1-09. A fault 
is triggered.
3: Continue operation. An alarm is triggered.
4: Continue operation at reduced speed as set in L8-19.
Note: 0 to 2 are recognized as faults, and 3 and 4 as alarms.
Default: 3
Min: 0
Max: 4
218
No.
(Addr.)
Name Description Setting Page
CLV
V/f
OLV
L7-01
L7-03
L7-02
L7-04
Output Torque
Positive Torque
REV
Negative Torque
FWD
Motor 
r/min
Regeneration
Regeneration
CLV
V/f
OLV
CLV
V/f
OLV
CLV
V/f
OLV
MV1000ParameterGuide_E_conditional.book  68 ページ  2013年10月11日 金曜日 午後8時18分