B.3 Parameter Table
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 501
L9: Drive Protection 2
n: Special Adjustment
The n parameters are used to adjust more advanced performance characteristics such as Hunting Prevention, speed
feedback detection, High Slip Braking, and Online Tuning for motor line-to-line resistance.
n1: Hunting Prevention
n2: Speed Feedback Detection Control (AFR) Tuning
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 time
Max: 50 times
301
<3> Parameter setting value is not reset to the default value when the drive is initialized.
<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.
Note: This parameter is not available with models CIMR-A4A0930 and 4A1200.
Default: 0
Min: 0
Max: 1
301
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
302
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
302
n1-03
(582H)
Hunting Prevention Time Constant
Sets the time constant used for Hunting Prevention.
Default:
<6>
Min: 0 ms
Max: 500 ms
302
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
302
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
303
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
303
n2-03
(586H)
Speed Feedback Detection Control
(AFR) Time Constant 2
Sets the AFR time constant to be used during Speed Search and during regen.
Default: 750 ms
Min: 0 ms
Max: 2000 ms
303
No. (Addr.) Name Description Setting Page
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
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
To Next Page
Loading...
