SINUS-K
PROGRAMMING
MANUAL
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Example 1:
Programming the V/f pattern of a 400V/50Hz motor to be used up to 80 Hz:
C06
= 50 Hz
C07
= 80 Hz
C08
= 0.1 Hz
C09
= 400 V
C10
= depending on the required starting torque.
C11 =
1%
Example 2:
Programming a voltage/frequency pattern of a 400V/200Hz motor to be used up to 200 Hz:
C06
= 200 Hz
C07
= 200 Hz
C08
= 0.1 Hz
C09
= 400 V
C10
= depending on the required starting torque.
C11 =
1%
Example 3:
Programming the V/f pattern of a 400V/50Hz motor to be used up to 50Hz with the following parameters (depending
on application requirements):
C06
= 50 Hz
C07
= 50 Hz
C09
= 400 V
C10
= 25 %
C11
= 5 %
C19
= –50 %
C20
= 60 %
the V/f pattern effectively obtained is the following:
0
50
100
150
200
250
300
350
400
450
0
10
20
30
40
50
60
(Hz)
(V
)
straight line
actual pattern
NOTE
Because decreasing voltages values could stall the motor when frequency increases, the
inverter will avoid negative trends depending on V/f characteristic set with V/f pattern
parameters: in that cases, a horizontal segment is produced (constant V when frequency
increases).