YASKAWA varispeed G7 CIMR-G7B series Instruction Manual page 183

Speed Feedback Protection Control Functions: N2
User constants for speed feedback protection control functions are shown in the following table.
Name
Con-
stant
Display
Number
Speed feed- Set the internal speed feed-
back detec- back detection control gain
tion control using the multiplication func-
(AFR) gain tion.
Normally, there is no need to
make this setting.
Adjust this constant as fol-
N2-01 lows:
• If hunting occurs, increase
the set value.
AFR 增益
• If response is low, decrease
the set value.
Adjust the setting by 0.05 at a
time, while checking the
response.
Speed feed-
back detec-
Set the time constant to
tion control
decide the rate of change in
N2-02
(AFR) time
the speed feedback detection
constant
control.
AFR 时间
Speed feed-
Increase the setting if over-
back detec-
voltage (OV) failures occur at
tion control
N2-03 the completion of accelera-
(AFR) time
tion or when the load changes
constant 2
radically.
AFR 时间 2
High-slip Braking: N3
User constants for high-slip braking are shown in the following table.
Name
Con-
stant
Display
Number
High-slip
Sets the frequency width for
braking
deceleration during high-slip
deceleration
N3-01 braking as a percent, taking
frequency
the Maximum Frequency
width
(E1-04) as 100%.
HSB 频率幅度
High-slip Sets the current limit for
braking cur- deceleration during high-slip
rent limit braking as a percent, taking
N3-02 the motor rated current as
100%. The resulting limit
HSB 电流限制
must be 150% of the Inverter
rated current or less.
Setting Factory
Description
Range Setting
0.00 to
10.00
0 to
50 ms
2000
0 to
750 ms
2000
Setting Factory
Description
Range Setting
1 to 20
100 to
150%
200
Control Methods
Change
Open
during
V/f Loop
Opera-
V/f with Vec-
tion
PG tor
1
1.00 No No No A
No No No A
No No No A
Control Methods
Change
Open
during
V/f Loop
Opera-
V/f with Vec-
tion
PG tor
1
5% No A A No
No A A No
User Constant Tables
MEMO-
Open
BUS
Flux Loop
Page
Regis-
Vec- Vec-
ter
tor tor
2
4-18
No No 584H
6-41
No No 585H 6-41
No No 586H 6-41
MEMO-
Open
BUS
Flux Loop
Page
Regis-
Vec- Vec-
ter
tor tor
2
No No 588H -
No No 589H -
5-
69