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Speed Feedback Protection Control Functions: n2
User parameters for speed feedback protection control functions are shown in the following table.
Name
Parameter
Number
Display
Speed
Sets the internal speed
Feedback
feedback detection control
Detection
gain in the automatic
Control
frequency regulator (AFR).
(AFR) Gain
Normally, there is no need to
change this setting. Adjust
this parameter as follows:
n2-01
- If hunting occurs, increase
the set value.
- If response is low, decrease
AFR Gain
the set value.
Adjust the setting by 0.05
units at a time, while
checking the response.
Speed
Feedback
Sets the time constant to
Detection
control the rate of change in
Control
n2-02
the speed feedback detection
(AFR) Time
control.
Constant
AFR Time
Speed
Feedback
Detection
Sets the time constant to
Control
n2-03
control the amount of change
(AFR) Time
in the speed at low speed.
Constant 2
AFR Time 2
High-slip Braking: n3
User parameters for high-slip braking are shown in the following table.
Name
Parameter
Number
Display
High Slip
Sets how aggressively the
Braking
Drive decreases the output
Deceleration
frequency as it stops the
Frequency
motor using high slip braking
n3-01
Width
(HSB). If Overvoltage (OV)
faults occur during HSB, this
HSB Down
parameter may need to be
Freq
increased.
High Slip
Sets the maximum current to
Braking
be drawn during an HSB stop.
Current Limit
Higher n3-02 settings will
n3-02
shorten motor stopping times
but cause increased motor
HSB Current
current, and therefore
increased motor heating.
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Setting
Factory
Description
Range
Setting
0.00
to
1.00
10.00
0
to
50ms
2000
0
to
750ms
2000
Setting
Factory
Description
Range
Setting
1 to 20
5%
100
to
150%
200
User Parameter Tables
Control Methods
Change
Open
V/f
during
Loop
Flux
V/f
with
Operation
Vector
Vector
PG
1
No
No
No
A
No
No
No
No
A
No
No
No
No
A
No
Control Methods
Change
Open
V/f
during
Loop
Flux
V/f
with
Operation
Vector
Vector
PG
1
No
A
A
No
No
No
A
A
No
No
Open
MODBUS
Loop
Register
Vector
2
No
584H
No
585H
No
586H
Open
MODBUS
Loop
Register
Vector
2
No
588H
No
589H
75
5-
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Troubleshooting
