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B.3 Parameter Table
514
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
◆
n: Special Adjustments
The n parameters are used to adjust more advanced performance characteristics such as Hunting Prevention, speed
feedback detection, and Online Tuning for motor line-to-line resistance.
■
n1: Hunting Prevention
■
n2: Speed Feedback Detection Control (AFR) Tuning
■
n3: Overexcitation Braking
No. (Addr.)
Name
Description
Setting
Page
n1-01
(580H)
<6> Default setting value varies by the drive model (o2-04).
Hunting Prevention Selection
0: Disabled
1: Enabled
Default: 1
Min: 0
Max: 1
n1-02
(581H)
Hunting Prevention Gain Setting
If the motor vibrates while lightly loaded, increase the gain by 0.1 until vibration ceases. If the
motor stalls, decrease the gain by 0.1 until the stalling ceases.
Default: 1.00
Min: 0.00
Max: 2.50
n1-03
(582H)
Hunting Prevention Time Constant
Sets the time constant used for Hunting Prevention.
Min: 0 ms
Max: 500 ms
n1-05
(530H)
Hunting Prevention Gain while in
Reverse
Sets the gain used for Hunting Prevention. If set to 0, the gain set to n1-02 is used for operation
in reverse.
Default: 0.00
Min: 0.00
Max: 2.50
n1-09
(0BADH)
Vibration Suppression Level
There is normally no need to change this parameter from the default value.
Note:
This parameter is available in the drive software versions S1017 and later.
Default: 2.00
Min: 0.00
Max: 10.00
n1-10
(0BAEH)
Suppression Frequency
There is normally no need to change this parameter from the default value.
Note:
This parameter is available in the drive software versions S1017 and later.
Default: 10.0 Hz
Min: 5.0 Hz
Max: 100.0 Hz
n1-11
(0BAFH)
Suppression Auxiliary Frequency
There is normally no need to change this parameter from the default value.
Note:
This parameter is available in the drive software versions S1017 and later.
Default: 20.0 Hz
Min: 10.0 Hz
Max: 50.0 Hz
n1-12
(0B1BH)
Vibration Suppression Time
Constant
There is normally no need to change this parameter from the default value.
Note:
This parameter is available in the drive software versions S1017 and later.
Default: 0 ms
Min: 0 ms
Max: 1000 ms
No. (Addr.)
Name
Description
Setting
Page
n2-01
(584H)
Speed Feedback Detection Control
(AFR) Gain
Sets the internal speed feedback detection control gain in the automatic frequency regulator
(AFR).
If hunting occurs, increase the set value. If response is low, decrease the set value.
Default: 1.00
Min: 0.00
Max: 10.00
n2-02
(585H)
Speed Feedback Detection Control
(AFR) Time Constant 1
Sets the time constant used for speed feedback detection control (AFR).
Default: 50 ms
Min: 0 ms
Max: 2000 ms
No. (Addr.)
Name
Description
Setting
Page
n3-13
(531H)
Overexcitation Deceleration Gain
Sets the gain applied to the V/f pattern during Overexcitation Deceleration (L3-04 = 4).
Default: 1.10
Min: 1.00
Max: 2.00
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
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
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
SIEP_C710636_02B_1_0.book 514 ページ 2015年11月25日 水曜日 午後4時56分