YASKAWA A1000 Series Technical Manual page 438

B.3 Parameter Table
L7: Torque Limit
■
No. (Addr.) Name
L7-01
Forward Torque Limit
(4A7H)
L7-02
Reverse Torque Limit
(4A8H)
L7-03 Forward Regenerative Torque
(4A9H) Limit
L7-04 Reverse Regenerative Torque
(4AAH) Limit
L7-06 Torque Limit Integral Time
(4ACH) Constant
L7-07 Torque Limit Control Method
(4C9H) Selection during Accel/Decel
■ L8: Drive Protection
No. (Addr.) Name
L8-01
Internal Dynamic Braking Resistor
(4ADH) Protection Selection (ERF type)
L8-02
Overheat Alarm Level
(4AEH)
L8-03 Overheat Pre-Alarm Operation
(4AFH) Selection
L8-05 Input Phase Loss Protection
(4B1H) Selection
L8-07 Output Phase Loss Protection
(4B3H) Selection
L8-09 Output Ground Fault Detection
(4B5H) Selection
L8-10 Heatsink Cooling Fan Operation
(4B6H) Selection
L8-11 Heatsink Cooling Fan Off Delay
(4B7H) Time
L8-12
Ambient Temperature Setting
(4B8H)
L8-15 oL2 Characteristics Selection at
(4BBH) Low Speeds
438
V/f V/f w/PG
OLV/PM AOLV/PM
Sets the torque limit value as a percentage of the motor rated torque. Four individual quadrants
can be set.
Output Torque
L7-04
Regeneration
REV
L7-02
V/f V/f w/PG
OLV/PM AOLV/PM
Sets the integral time constant for the torque limit.
V/f V/f w/PG
OLV/PM AOLV/PM
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.
All Modes
0: Resistor overheat protection disabled
1: Resistor overheat protection enabled
All Modes
An overheat alarm will occur if the heatsink temperature exceeds the level set in L8-02.
All Modes
0: Ramp to stop. A fault is triggered.
1: Coast to stop. A fault is triggered.
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.
All Modes
Selects the detection of input current phase loss, power supply voltage imbalance, or main
circuit electrolytic capacitor deterioration.
0: Disabled
1: Enabled
All Modes
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
All Modes
0: Disabled
1: Enabled
All Modes
0: During run only. Fan operates only during run and for L8-11 seconds after stop.
1: Fan always on. Cooling fan operates whenever the drive is powered up.
All Modes
Sets a delay time to shut off the cooling fan after the Run command is removed when L8-10 = 0.
All Modes
Enter the ambient temperature. This value adjusts the oL2 detection level.
All Modes
0: No oL2 level reduction below 6 Hz.
1: oL2 level is reduced linearly below 6 Hz. It is halved at 0 Hz.
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Description
OLV CLV
CLV/PM
Positive Torque
L7-01
Motor
r/min
FWD
Regeneration
L7-03
Negative Torque
OLV
CLV
CLV/PM
OLV CLV
CLV/PM
Description
Setting
Default: 200%
common_
Min: 0%
TMonly
Max: 300%
Default: 200%
Min: 0%
Max: 300%
Default: 200%
Min: 0%
Max: 300%
Default: 200%
Min: 0%
Max: 300%
Default: 200 ms
common_
TMonly Min: 5 ms
Max: 10000 ms
common_
TMonly Default: 0
Min: 0
Max: 1
Setting
common_
Default: 0
TMonly
Min: 0
Max: 1
Default:
<9>
common_
TMonly Min: 50°C
Max: 130°C
common_
TMonly
Default: 3
Min: 0
Max: 4
common_
TMonly
Default: 1
Min: 0
Max: 1
common_
TMonly Default: 0
Min: 0
Max: 2
common_
Default:
<9>
TMonly
Min: 0
Max: 1
common_
Default: 0
TMonly
Min: 0
Max: 1
Default: 60 s
common_
TMonly Min: 0 s
Max: 300 s
Default: 40°C
common_
TMonly Min: -10°C
Max: 50°C
common_
Default: 1
TMonly
Min: 0
Max: 1
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