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
0: During run only. Fan operates only during run for L8-11
seconds after stop.
1: Fan always on. Cooling fan operates whenever the drive is
powered up.
Default: 0
Range: 0, 1
–
L8-11
(04B7)
Heatsink Cooling Fan
Off Delay Time
Fan Delay Time
Sets a delay time to shut off the cooling fan after the Run
command is removed when L8-10 = 0.
Default: 300 s
Min.: 0
Max.: 300
–
L8-12
(04B8)
Ambient Temperature
Setting
Ambient Temp
Enter the ambient temperature. This value adjusts the oL2
detection level.
Default: 40 °C
Min.: -10
Max.: 50
–
L8-15
(04BB)
oL2 Characteristics
Selection at Low
Speeds
OL2 Sel @ L-Spd
0: Disabled
1: Enabled
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
Range: 0, 1
–
L8-18
(04BE)
Software Current Limit
Selection
Soft CLA Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled
Default: 0
Range: 0, 1
–
L8-19
(04BF)
Frequency Reduction
Rate during Overheat
Pre-Alarm
Fc Red dur OHAlm
Specifies the frequency reference reduction gain at overheat pre-
alarm when L8-03 = 4.
Default: 0.8
Min.: 0.1
Max.: 0.9
–
L8-32
(04E2)
Main Contactor and
Cooling Fan Power
Supply Failure
Selection
MC/FAN PS FltSel
0: Ramp to stop
1: Coast to stop
2: Fast-Stop
3: Alarm only
4: Run@L8-19 Rate
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)
3: Alarm only (“FAn” will flash)
4: Continue operation at reduced speed as set to L8-19.
Default: 1
Range: 0 to 4
–
L8-35
(04EC)
Installation Method
Selection
Installation Sel
0: IP00/OpenChassis
1: Side-by-Side
2: IP20/Nema Type 1
3: ExternalHeatsink
0: IP00/Open-Chassis enclosure
1: Side-by-Side mounting
2: IP20/NEMA Type 1 enclosure
3: Finless model drive or external heatsink installation
Default:
<2> <3>
Range: 0 to 3
–
L8-38
(04EF)
Carrier Frequency
Reduction
Fc Reduct dur OL
0: Disabled
1: Active below 6Hz
2: Active @ any Spd
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Default: 2
Range: 0 to 2
–
L8-40
(04F1)
Carrier Frequency
Reduction Off Delay
Time
Fc Reduct Time
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: 0.5 s
Min.: 0.00
Max.: 2.00
–
L8-41
(04F2)
High Current Alarm
Selection
High Cur Alm Sel
0: Disabled
1: Enabled
0: Disabled
1: Enabled. An alarm is triggered at output currents above 150%
of drive rated current.
Default: 0
Range: 0, 1
–
L8-55
(045F)
Internal Braking
Transistor Protection
FC Sel dur OHAlm
0: Disabled
1: Enabled
0: Disabled. Disable when using a regen converter or optional
braking unit.
1: Protection enabled.
Default: 1
Range: 0, 1
–
<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
<2> Parameter setting value is not reset to the default value when the drive is initialized.
<3> Default setting is determined by the drive model:
Setting 2: Model code 2A0004 to 2A0211, 4A0002 to 4A0165, and 5A0003 to 5A0242
Setting 0: Model code 2A0250 to 2A0415 and 4A0208 to 4A0675
B.8 L: Protection Function
YASKAWA TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide
295
B
Parameter List
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