GE VAT2000

6. Control Functions and Parameter Settings
6-16
Block-B parameters (Extended function constants) list
ApplicationNo. Parameter Unit Default Min. Max. Function
ST V/f VEC
PM
B33 – M fluctuation compensation table reference speed
0 Table reference speed 0 min
–1
200 100. 7200.
1 Table reference speed 1 min
–1
400 100. 7200.
2 Table reference speed 2 min
–1
600 100. 7200.
3 Table reference speed 3 min
–1
800 100. 7200.
4 Table reference speed 4 min
–1
1000 100. 7200.
5 Table reference speed 5 min
–1
1200 100. 7200.
6 Table reference speed 6 min
–1
1400 100. 7200.
7 Table reference speed 7 min
–1
1600 100. 7200.
This is the reference speed
table .
These values will be affected by
the compensation (B34) block.
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B34 – M fluctuation compensation
0
M fluctuation compensation
coefficient 0
% 100.0 50.0 150.0
1 M fluctuation compensation
coefficient 1
% 100.0 50.0 150.0
2 M fluctuation compensation
coefficient 2
% 100.0 50.0 150.0
3 M fluctuation compensation
coefficient 3
% 100.0 50.0 150.0
4 M fluctuation compensation
coefficient 4
% 100.0 50.0 150.0
5 M fluctuation compensation
coefficient 5
% 100.0 50.0 150.0
6 M fluctuation compensation
coefficient 6
% 100.0 50.0 150.0
7
M fluctuation compensation
coefficient 7
% 100.0 50.0 150.0
This is adjusted with the
automatic tuning mode 4 (B19-0
= 4).
This compensates the exciting
inductance fluctuation according
to the B33 reference speed
values.
Set the compensation
coefficients that the output
voltage is constant during no-
load operation through the entire
operation range.
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B35 – Constant Voltage control (PM)
0 Demagnetizing control
operation voltage range
% 10.0 50.0 100.0

1 Demagnetizing current limit
value
% 50.0 10.0 200.0
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2 Demagnetizing proportional
gain
times 0.10 0.01 99.99
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3 Demagnetizing integral gain ms 10. 2. 1000.
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4
Flux temperature fluctuation
compensation range
% 0.0 0.0 50.0
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5 Flux temperature fluctuation
compensation time
constant
% 1000. 1. 9999.
%
of rated voltage
Ratio of rated voltage
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B36 – Demagnetizing current table (PM)
0 Demagnetizing current
table 0
% 0.0 0.0 100.0
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1 Demagnetizing current
table 1
% 0.0 0.0 100.0
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2 Demagnetizing current
table 2
% 0.0 0.0 100.0
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3 Demagnetizing current
table 3
% 0.0 0.0 100.0
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4
Demagnetizing current
table 4
% 0.0 0.0 100.0
Demagnetising current table
(at torque command 25%)
(at torque command 50%)
(at torque command 50%)
(at torque command 50%)
(at torque command 50%)
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