B.3 Parameter Table
418 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
L8-05
(4B1H)
Input Phase Loss Protection
Selection
Selects the detection of input current phase loss, power supply voltage imbalance, or main
circuit electrolytic capacitor deterioration.
0: Disabled
1: Enabled always
2: Enabled during operation
3: Enabled during constant speed
Setting 1 cannot be selected for 600 V class drive models and models CIMR-LF that are
in compliance with IEC/EN 61508 SIL3 Safety Integrity Level 3.
Default: 1
<48>
Min: 0
Max: 3
236
L8-06
(4B2H)
Input Phase Loss Detection Level
When ripple is observed in the DC bus, expansion of the input bias is calculated and becomes
the input phase if the difference between the max and minimum values of the ripple are greater
than L8-06.
Detection Level = 100% = Voltage class × (determines standards for setting values)
Default:
<4>
Min: 0.0%
Max: 50.0%
236
L8-07
(4B3H)
Output Phase Loss Protection
Selection
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
3: Fault at phase loss at start or when two phases lost mid-operation
Note: Setting 3 is available in the control mode V/f or OLV for drives with software versions
PRG: 7200 or later.
Default: 0
Min: 0
Max: 3
236
L8-09
(4B5H)
Output Ground Fault Detection
Selection
0: Disabled
1: Enabled
Default: 1
Min: 0
Max: 1
237
L8-10
(4B6H)
Heatsink Cooling Fan Operation
Selection
0: Run with timer (Fan operates only during run and for L8-11 seconds after stop.)
1: Run always (Cooling fan operates whenever the drive is powered up.)
2: Temperature controlled (Cooling fan operated depending on the temperature of the drives
heatsink.)
Default: 0
Min: 0
Max: 2
237
L8-11
(4B7H)
Heatsink Cooling Fan Off Delay
Time
Sets a delay time to shut off the cooling fan after the Up/Down command is removed when
L8-10 = 0.
Default: 60 s
Min: 0 s
Max: 300 s
237
L8-12
(4B8H)
Ambient Temperature Setting
Enter the ambient temperature. This value adjusts the oL2 detection level.
Default: 40°C
Min: -10°C
Max: 50°C
237
L8-15
(4BBH)
oL2 (drive overload)
Characteristics Selection at Low
Speeds
0: No oL2 level reduction below 6 Hz.
1: oL2 level is reduced linearly below 6 Hz. It is halved at 0 Hz.
Default: 1
Min: 0
Max: 1
238
L8-27
(4DDH)
Overcurrent Detection Gain
Sets the gain for overcurrent detection as a percentage of the motor rated current. Overcurrent is
detected using the drive’s overcurrent level or the value set to L8-27, whichever is lower.
Default: 300.0%
Min: 0.0%
Max: 300.0%
238
L8-29
(4DFH)
Current Unbalance Detection
(LF2)
0: Disabled
1: Enabled
Default: 1
Min: 0
Max: 1
238
L8-35
(4ECH)
<1>
Installation Selection
0: IP00 enclosure drive
2: IP00 enclosure drive with top protective cover
Default:
<4>
Min: 0
Max: 2
238
L8-38
(4EFH)
Automatic Torque Boost Selection
Torque Boost increases the output current limit while decreasing the carrier frequency when the
output current exceeds a certain value.
0: Disabled
3: Enabled
Default: 0
Min: 0
Max: 3
239
L8-39
(4F0H)
Reduced Carrier Frequency
Sets the reduced carrier frequency used by the Torque Boost function.
Default: 3.0 kHz
Min: 1.0 kHz
Max: 15.0 kHz
239
L8-55
(45FH)
Internal Braking Transistor
Protection
0: Disabled. L8-55 should be disabled when using a regen converter or an optional braking unit.
1: Protection enabled.
Default: 1
Min: 0
Max: 1
239
L8-62
(529H)
Operation Selection at Input Phase
Loss
Sets stopping method when a Input phase loss fault (PF) occurs. See parameter L8-05.
0: Ramp to Stop - Decelerate to stop using the deceleration ramp in C1-02.
1: Coast to Stop
2: Fast Stop - Decelerate to stop using the deceleration ramp in C1-09.
3: Alarm only - Drive continues operation.
Default: 1
Min: 0
Max: 3
236
No. (Addr.) Name Description Setting Page
All Modes
All Modes
2
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
All Modes
SIEP_C710616_38F_5_0.book 418 ページ ２０１５年１１月９日 月曜日 午後３時３６分
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