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B.3 Parameter Table
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
513
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B
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L9: Drive Protection 2
L8-19
(4BFH)
Frequency Reduction Rate during
Overheat Pre-Alarm
Specifies the frequency reference reduction gain at overheat pre-alarm when L8-03 = 4.
Default: 0.8
Min: 0.1
Max: 0.9
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: 400.0%
L8-29
(4DFH)
Current Unbalance Detection
(LF2)
0: Disabled
2: Enabled
Default: 2
Min: 0
Max: 2
L8-32
(4E2H)
Cooling Fan Failure Selection
Determines the action the drive should take 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 in C1-09)
Default: 1
Min.: 0
Max.: 2
L8-35
(4ECH)
Installation Method Selection
0: IP00 enclosure drive
2: IP20/NEMA 1, UL Type 1 enclosure
3: External heatsink installation
Default:
Min: 0
Max: 3
L8-38
(4EFH)
Carrier Frequency Reduction
Selection
0: Disabled
1: Enabled below 6 Hz
2: Enabled for the entire speed range
Default:
Min: 0
Max: 2
L8-40
(4F1H)
Carrier Frequency Reduction
Off-Delay 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:
Min: 0.00 s
Max: 2.00 s
L8-41
(4F2H)
High Current Alarm Selection
0: Disabled
1: Enabled. An alarm is triggered at output currents above 150% of the drives rated current.
Default: 0
Min: 0
Max: 1
L8-93
(73CH)
LSo Detection Time at Low Speed
Sets the amount of time until baseblock is executed once LSo has been detected at low speed.
Default: 1.0 s
Min: 0.0 s
Max: 10.0 s
L8-94
(73DH)
LSo Detection Level at Low Speed
Determines the detection level of LSo at low speed.
Default: 3%
Min: 0%
Max: 10%
L8-95
(77FH)
Average LSo Frequency at Low
Speed
Sets the average number of times LSo can occur at low speed.
Default: 10 times
Min: 1
Max: 50
<6> Default setting value varies by the drive model (o2-04).
<10> Default setting is determined by the control mode (A1-02).
<16> Default setting is determined by the control mode (A1-02) and the drive model (o2-04).
No. (Addr.)
Name
Description
Setting
Page
L9-03
(819H)
Carrier Frequency Reduction
Level Selection
There is normally no need to change this parameter from the default value.
Selects the level to start the reduction of the frequency or to clear the current frequency level for
the automatic reduction of the carrier frequency.
0: Reduces the carrier frequency based on the drive's rated current that is not derated.
1: Reduces the carrier frequency based on the drive's rated current that is derated by the carrier
frequency and the temperature selected for C6-02.
Default: 0
Min: 0
Max: 1
L9-12
(0B28H)
SoH Alarm Selection during bb
Sets the SoH (Snubber Discharge Resistor Overheat) alarm to output a fault or a minor fault
during a baseblock (bb).
0: Outputs a fault for an SoH alarm during a baseblock (bb).
1: Outputs a minor fault for an SoH alarm during a baseblock (bb).
Note:
This parameter is available in the drive software versions S1015 and later.
Default: 0
Min: 0
Max: 1
No. (Addr.)
Name
Description
Setting
Page
All Modes
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
All Modes
All Modes
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
All Modes
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
OLV/PM
AOLV/PM
CLV
V/f w/PG
CLV/PM
V/f
OLV
All Modes
SIEP_C710636_02B_1_0.book 513 ページ 2015年11月25日 水曜日 午後4時56分