L8: Drive Protection - YASKAWA GA800 Maintenance & Troubleshooting

3.11 L: Protection Functions
No.
Name
(Hex.)
L7-04 Reverse Regenerative Trq
Limit
(04AA)
RUN
L7-06 Torque Limit Integral Time
(04AC)
L7-07 Torque Limit during Accel/
Decel
(04C9)
L7-16 Torque Limit Process at Start
(044D)
L7-35 Low Freq Regen Torque
Limit Lvl
(1B57)
Expert
L7-36 Regen Torque Limit Derate
Freq
(1B58)
Expert
◆

L8: Drive Protection

No.
Name
(Hex.)
L8-01 3% ERF DB Resistor
Protection
(04AD)
L8-02 Overheat Alarm Level
(04AE)
L8-03 Overheat Pre-Alarm
Selection
(04AF)
L8-05 Input Phase Loss Protection
Sel
(04B1)
L8-07 Output Phase Loss
Protection Sel
(04B3)
232
V/f CL-V/f OLV CLV AOLV
Sets the torque limit value for reversed regenerative conditions as a percentage of the motor rated
torque.
V/f CL-V/f OLV CLV AOLV
Sets the integral time constant for the torque limit function.
V/f CL-V/f OLV CLV AOLV
Sets the torque limit function during acceleration and deceleration.
0 : Proportional only
1 : Proportional & Integral control
V/f CL-V/f OLV CLV AOLV
Assigns a time filter to allow the torque limit to build at start.
0 : Disabled
1 : Enabled
V/f CL-V/f OLV CLV AOLV
Sets the torque limit used during low-speed regeneration. Usually it is not necessary to change this
setting.
V/f CL-V/f OLV CLV AOLV
Sets the frequency width at which L7-35 [Low Freq Regen Torque Limit Lvl] operates.
V/f CL-V/f OLV CLV AOLV
Sets the function to enable braking resistor protection with a Yaskawa ERF series braking resistor
(3% ED) installed on the heatsink.
0 : Disabled
1 : Enabled
V/f CL-V/f OLV CLV AOLV
Sets the oH detection level in temperature.
V/f CL-V/f OLV CLV AOLV
Sets the operation of drives when an oH alarm is detected.
0 : Ramp to Stop
1 : Coast to Stop
2 : Fast Stop (Use C1-09)
3 : Alarm Only
4 : Operate at Reduced Speed (L8-19)
V/f CL-V/f OLV CLV AOLV
Sets the function to enable and disable input phase loss detection.
Note:
The default setting and setting range is different for different models.
• 200 V Class and 400 V Class
Default: 1
Setting range: 0, 1
• 6-Phase/12-Pulse 400 V Class
Default: 4
Setting range: 0 - 4
The software version for 6-Phase/12-Pulse drive is PRG: 09015 and later. The "PRG" column
on the nameplate on the right side of the drive identifies the software version. You can also use
U1-25 [SoftwareNumber Flashr] to identify the software version.
0 : Disable
1 : Enabled
4 : Enabled, with Hardware Detection
V/f CL-V/f OLV CLV AOLV
Sets the function to enable and disable output phase loss detection. The drive starts output phase loss
detection when the output current decreases to less than 5% of the drive rated current.
Note:
The drive can incorrectly start output phase loss detection in these conditions:
• The motor rated current is very small compared to the drive rating.
• The drive is operating a PM motor with a small load.
0 : Disabled
1 : Fault when one phase is lost
2 : Fault when two phases are lost
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
YASKAWA TOEPYAIGA8001B GA800 Drive Maintenance & Troubleshooting
Default
(Range)
200%
(0 - 300%)
200 ms
(5 - 10000 ms)
0
(0, 1)
1
(0, 1)
50.0%
(0.0 - 200.0%)
6.0 Hz
(0.0 - 30.0 Hz)
Default
(Range)
0
(0, 1)
Determined by o2-04, C6-01
(50 - 150 °C)
3
(0 - 4)
Determined by o2-04
(0 - 4)
1
(0 - 2)