L8: Drive Protection - YASKAWA GA700 Series Technical Manual

No.
Name
(Hex.)
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)
L8-09 Output Ground Fault
Detection
(04B5)
L8-10 Heatsink Fan Operation
Selection
(04B6)
L8-11 Heatsink Fan Off-Delay
Time
(04B7)
L8-12 Ambient Temperature
Setting
(04B8)
YASKAWA SIEPC71061705H GA700 Series Technical Manual
Description
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.
Description
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.
0 : Disable
1 : Enabled
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
V/f CL-V/f OLV CLV AOLV
Sets the function to enable and disable ground fault protection.
0 : Disabled
1 : Enabled
V/f CL-V/f OLV CLV AOLV
Sets operation of the heatsink cooling fan.
0 : During Run, w/ L8-11 Off-Delay
1 : Always On
2 : Temperature-Dependent Fan Ctrl.
V/f CL-V/f OLV CLV AOLV
Sets the length of time that the drive will wait before it stops the cooling fan after it
cancels the Run command when L8-10 = 0 [Heatsink Fan Operation Selection =
During Run, w/ L8-11 Off-Delay].
V/f CL-V/f OLV CLV AOLV
Sets the ambient temperature of the drive installation area.
11.11 L: Protection Functions
OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
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 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
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
Default
Ref.
(Range)
0 908
(0, 1)
1 908
(0, 1)
50.0% 908
(0.0 - 200.0%)
6.0 Hz 909
(0.0 - 30.0 Hz)
Default
Ref.
(Range)
0 909
(0, 1)
Determined by o2-04, 909
C6-01
(50 - 150 °C)
3 909
(0 - 4)
1 910
(0, 1)
0 911
(0 - 2)
Determined by o2-04 911
(0, 1)
0 911
(0 - 2)
60 s 911
(0 - 300 s)
40 °C 444
(-10 °C - +50 °C)
555
11