B Parameter Table
194 YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
L8-11
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
L8-12
Ambient Temperature
Setting
Enter the ambient temperature. This value adjusts the oL2 detection level.
Default: 40°C
Min: -10°C
Max: 50°C
L8-15
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
L8-27
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%
L8-29
Current Unbalance
Detection (LF2)
0: Disabled
1: Enabled
Default: 1
Min: 0
Max: 1
L8-35
<1>
Installation Selection
0: IP00 enclosure drive
2: IP00 enclosure drive with top protective cover
Default:
<4>
Min: 0
Max: 2
L8-38
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
L8-39
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
L8-55
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
L8-62
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
L8-77 Oscillation Suppression
Used to suppress speed oscillations that occur with an unloaded motor and that have
the same frequency as the output frequency.
Default: 0
Min: -100
Max: 100
L8-88
Safe Disable Operation
Mode
0: Mode 0
1: Mode 1
Default: 1
Min: 0
Max: 1
L8-89
<44>
Current Monitoring
Selection
Enables or disables the Current Monitoring function.
0: Disabled
1: Enabled
Default: 0
Min: 0
Max: 1
L8-99
<44>
Current Monitoring Level
Sets the current monitoring level as a percentage of the drive’s rated current. Sets the
level of current used for L8-89 and H2- = 5C.
Default: 10.0%
Min: 0.0%
Max: 50.0%
<1> Parameter setting value is not reset to the default value when the drive is initialized.
<4> Default setting is determined by the drive model (o2-04).
<44> Available in drive software versions PRG: 7017 or later.
<48> The default is 2 for 600 V class drive models and models CIMR-LF that are in compliance with IEC/EN 61508 SIL3 Safety Integrity
Level 3.
No. Name Description Setting
TOEP_C710616_38H_7_0.book 194 ページ ２０１５年１１月１１日 水曜日 午後７時４０分
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