L7: Torque Limit; L8: Drive Protection - YASKAWA AC Drive-A1000 Technical Manual

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L7: Torque Limit

OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
No.
(Addr. Name
Hex)
L7-01
Forward Torque Limit
(4A7)
L7-02
Reverse Torque Limit
(4A8)
L7-03 Forward Regenerative
(4A9) Torque Limit
L7-04 Reverse Regenerative
(4AA) Torque Limit
L7-06 Torque Limit Integral Time
(4AC) Constant
Torque Limit Control
L7-07
Method Selection during
(4C9)
Accel/Decel
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L8: Drive Protection

OLV/PM OLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM
No.
(Addr. Name
Hex)
Internal Dynamic Braking
L8-01
Resistor Protection
(4AD)
Selection (ERF type)
L8-02
Overheat Alarm Level
(4AE)
L8-03 Overheat Pre-Alarm
(4AF) Operation Selection
L8-05 Input Phase Loss Protection
(4B1) Selection
L8-07 Output Phase Loss
(4B3) Protection Selection
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
PM motor control modes are not available on 600 V class drives, CIMR-Ao5oooooooo.
V/f V/f V/f w PG V/f w PG
OLV/PM OLV/PM OLV/PM OLV/PM AOLV/PM AOLV/PM AOLV/PM AOLV/PM CLV/PM CLV/PM CLV/PM CLV/PM
Sets the torque limit value as a percentage of the motor rated torque. Four
individual quadrants can be set.
L7-04
Regeneration
REV
L7-02
V/f V/f w PG
OLV/PM AOLV/PM CLV/PM
Sets the integral time constant for the torque limit.
V/f V/f w PG
OLV/PM AOLV/PM CLV/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.
PM motor control modes are not available on 600 V class drives, CIMR-Ao5oooooooo.
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)
Description
OLV OLV OLV OLV CLV CLV CLV CLV
Output Torque
Positive Torque
L7-01
Motor
r/min
FWD
Regeneration
L7-03
Negative Torque
OLV OLV CLV
OLV OLV CLV
Description
B.10 L: Protection Function
Values Page
Default: 200%
Min.: 0
Max.: 300
Default: 200%
Min.: 0
Max.: 300
Default: 200%
Min.: 0
Max.: 300
Default: 200%
Min.: 0
Max.: 300
Default: 200 ms
Min: 5
Max: 10000
Default: 0
Range: 0, 1
Values Page
Default: 0
Range: 0, 1
<1>
Default:
Min.: 50 °C
Max.: 130 °C
Default: 3
Range: 0 to 4
Default: 1
Range: 0, 1
Default: 1
Range: 0 to 2
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B
264
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