No.
(Addr.
Hex)
Name LCD Display Description Values Page
L8-10
(04B6)
Heatsink Cooling Fan
Operation Selection
Fan On/Off Sel
0: Dur Run (OffDly)
1: Always On
All Modes
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.)
Note: If a damping resistor overheat (doH) is detected,
the cooling fan will turn on regardless of the setting
value.
Default: 0
Range: 0, 1
329
L8-11
(04B7)
Heatsink Cooling Fan
Off Delay Time
Fan Delay Time
All Modes
Sets a delay time to shut off the cooling fan after the Run
command is removed when L8-10 = 0.
Default: 60 s
Min.: 0
Max.: 300
330
L8-12
(04B8)
Ambient Temperature
Setting
Ambient Temp
All Modes
Enter the ambient temperature. This value adjusts the oL2
detection level.
Default: 40 °C
Min.: -10
Max.: 50
330
L8-15
(04BB)
oL2 Characteristics
Selection at Low Speeds
OL2 Sel @ L-Spd
0: Disabled
1: Enabled
All Modes
0: No oL2 level reduction below 6 Hz.
1: oL2 level is reduced linearly below 6 Hz. It is reduced to 70%
at 0 Hz.
Default: 1
Range: 0, 1
330
L8-18
(04BE)
Software Current Limit
Selection
Soft CLA Sel
0: Disabled
1: Enabled
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f V/f w PG OLV CLV
0: Disabled
1: Enabled
Default:
<4>
Range: 0, 1
330
L8-19
(04BF)
Frequency Reduction
Rate during Overheat
Pre-Alarm
Fc Red dur OHAlm
All Modes
Specifies the frequency reference reduction gain at overheat pre-
alarm when L8-03 = 4.
Default: 0.8
Min.: 0.1
Max.: 0.9
331
L8-27
(04DD)
Overcurrent Detection
Gain
OC Level
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM AOLV/PM CLV/PMOLV/PM AOLV/PM CLV/PM
Sets the gain for overcurrent detection as a percentage of the
motor rated current. Overcurrent is detected using the lower value
between the overcurrent level of the drive or the value set to
L8-27.
Default: 300.0%
Min.: 0.0
Max.: 400.0
331
L8-29
(04DF)
Current Unbalance
Detection (LF2)
LF2 Flt Det Sel
0: Disabled
2: Current Det Type
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLV
OLV/PM AOLV/PM CLV/PMOLV/PM AOLV/PM CLV/PM
0: Disabled
2: Enabled (current detection)
Default: 2
Range: 0, 2
331
L8-32
(04E2)
Cooling Fan Failure
Selection
MC/FAN PS FltSel
0: Ramp to Stop
1: Coast to Stop
2: Fast-Stop
All Modes
Determines drive response when a fault occurs with the internal
cooling fan.
0: Ramp to stop
1: Coast to stop
2: Fast stop (Decelerate to stop using the deceleration time set to
C1-09)
Default: 1
Range: 0 to 2
331
L8-35
(04EC)
Installation Method
Selection
Installation Sel
0: IP00/OpenChassis
2: IP20/Nema Type 1
3: Finless/Fin Ext
All Modes
0: IP00/Open-Chassis enclosure
2: IP20/NEMA 1, UL Type 1 enclosure
3: External heatsink installation
Default:
<2>
Range: 0 to 3
331
L8-38
(04EF)
Carrier Frequency
Reduction
Fc Reduct dur OL
0: Disabled
1: Active below 6Hz
2: Active @ any Spd
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLV
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Default:
<3>
Range: 0 to 2
332
L8-40
(04F1)
Carrier Frequency
Reduction Off Delay
Time
Fc Reduct Time
V/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG
AOLV/PM
OLV
CLV/PM
CLVV/f
OLV/PM
V/f w PG OLV
CLV/PM
CLV
Sets the time that the drive continues running with reduced carrier
frequency after the carrier reduction condition is gone. Setting
0.00 s disables the carrier frequency reduction time.
Default:
<4>
Min.: 0.00 s
Max.: 2.00 s
332
B.10 L: Protection Function
556
YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
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