6. Control Functions and Parameter Settings
6-5
6-2 Block-A parameters
The parameters used most frequently have been grouped in Block-A.
Block-A parameters list
Application
No.
Parameter
Unit
Default
Min.
Max.
Function
ST
V/f VEC PM
A00 – Frequency setting
0
Local frequency
setting
Hz
10.00
0.10 Max. fre-
quency
This is the frequency set from the
operation panel.
1
Frequency setting for
jogging
Hz
5.00
0.10
Max.
fre-
quency
This is the frequency setting for
jogging.
2
Local speed setting
min
–1
300.0
–Max.
speed
Max.
speed
This is the speed set from the
operation panel.
3
Speed setting for
jogging
min
–1
100.0
–Max.
speed
Max.
speed
This is the speed setting for jogging.
A01 – Acceleration/deceleration time
0
Acceleration time – 1
sec
10.0
0.1
6000.0
1
Deceleration time – 1
sec
20.0
0.1
6000.0
This is the time to reach the max.
frequency or max. speed from 0
This value can be set x0.1 or x10
units by setting the parameter B10-5
accordingly.
A02 – Torque boost
0
Manual torque boost
selection
2.
1.
2.
1: Disable = 2: Enable
1
Automatic torque
boost selection
1.
1.
2.
1: Disable = 2: Enable
2
Manual torque boost
setting
%
Inverter
rating
0.0
20.0
This is the boost voltage at 0Hz.
This is automatically adjusted by the
automatic tuning.
3
Square reduction
torque setting
%
0.0
0.0
25.0
This is the reduced voltage at half of
base frequency.
4
R1 drop
compensation gain
%
50.0
0.0
100.0
This is the voltage compensation
because R1 drop
5
Slip compensation
gain
%
0.0
0.0
20.0
This is the motor’s rated slip.
This is automatically adjusted by the
automatic tuning.
6
Maximum torque
boost gain
%
0.0
0.0
50.0
This is automatically adjusted by the
automatic tuning.
A03 – DC Brake
0
DC braking voltage
%
Inverter
rating
0.1
20.0
This is automatically adjusted by the
automatic tuning.
1
DC braking time
sec
2.0
0.0
20.0
2
DC braking current
%
50.
0.
150.
A04 – Custom parameters
0
1
2
3
4
5
6
7
Custom – 0
– 1
– 2
– 3
– 4
– 5
– 6
– 7
Set the parameter Nos. to be
displayed in this block in
C10-0~7.
A05 – Block B, C parameter skip
0
Extended setting
2.
1.
2.
= 1 : Display, = 2 : Skip
1
Software option
function
2.
1.
2.
= 1 : Display, = 2 : Skip
2
Hardware option
function
2.
1.
2.
= 1 : Display, = 2 : Skip