YASKAWA FSDrive-MV1000 Parameter Manual page 69

No.
Name
(Addr.)
L8-07 Output Phase Loss
(4B3H) Protection Selection
L8-09 Output Ground Fault
(4B5H) Detection Selection
L8-10 Cooling Fan
(4B6H) Operation Selection
L8-11 Cooling Fan Off
(4B7H) Delay Time
oL2 Characteristics
L8-15
Selection at Low
(4BBH)
Speeds
L8-18 Software CLA
(4BEH) Selection
Frequency
L8-19 Reduction Rate
(4BFH) during Overheat
Pre-Alarm
L8-32 Backup Fan Use
(3104H) Selection
L8-33 Fan Board Use
(3105H) Selection
L8-63 Output Overvoltage
(3112H) Detection Level
L8-64 Output Overvoltage
(3113H) Detection Time
Output Voltage
L8-65 Unbalance
(3114H) Detection Operation
Selection
YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
All Modes
0: Disabled
1: Enabled (triggered by a single phase loss)
2: Enabled (triggered when two phases are lost)
Triggered when the output current falls below 5% of the drive rated current.
Disable this parameter when output phase loss detection is mistakenly
triggered because the motor rate current is very small compared to the drive
capacity.
All Modes
0: Disabled
1: Enabled
All Modes
0: During run only. Fan operates only during run and for L8-11 seconds after
stop.
1: Cooling fan operates when Uv (DC bus undervoltage) is cleared.
2: Fan always on. Cooling fan operates whenever the drive is control
powered up.
All Modes
Sets a delay time to shut off the cooling fan after the Run command is
removed when L8-10 = 0.
All Modes
0: No oL2 level reduction below 6 Hz.
1: oL2 level is reduced linearly below 6 Hz. It is halved at 0 Hz.
All Modes
Enables or disables the software current limits.
0: Disabled
1: Enabled
All Modes
Specifies the frequency reference reduction gain at overheat pre-alarm when
L8-03 = 4.
All Modes
Sets whether the backup fan is used or not.
0: Backup fan used
1: No backup fan used
All Modes
Sets the number of fan control boards (FFB boards) used.
0: No fan boards used
1: One fan board used
2: Two fan boards used
All Modes
Sets the level at which overvoltage is detected on the output side. Set as a
percentage of the maximum voltage of the motor in 0.1% units.
All Modes
Sets the time before OOV (overvoltage at the output side) is detected in 0.01
s units. If the state in which the output voltage exceeds the value set to L8-63
continues for the time set to L8-64 or longer, OOV (overvoltage at the output
side) is detected.
All Modes
Sets the operation when an output voltage unbalance is detected.
0: Ramp to stop over the time set for C1-02 (Deceleration Time)
1: Coast to stop
2: Fast Stop over the time set for C1-09 (Fast Stop Time)
3: Alarm only
Description
1.3 Parameter Table
Setting
common_
Default: 2
Min: 0
Max: 2
common_ Default: 1
Min: 0
Max: 1
common_
Default: 1
Min: 0
Max: 2
common_ Default: 600 s
Min: 0 s
Max: 1800 s
Default: 1
common_
Min: 0
Max: 1
common_
Default: 1
Min: 0
Max: 1
Default: 0.8
common_
Min: 0.1
Max: 0.9
common_
Default: 1
Min: 0
Max: 1
common_
Default:
<6>
Min: 0
Max: 2
common_ Default: 120.0%
Min: 0.0%
Max: 200.0%
common_
Default: 0.01 s
Min: 0.00 s
Max: 2.00 s
common_
Default: 3
Min: 0
Max: 3
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