SSD 605C - Page 141

Programming Your Application 6-75
605C Frequency Inverter
Operation Description
A+B+C The OUTPUT is set to (INPUT A + INPUT B + INPUT C).
A-B-C The OUTPUT is set to (INPUT A - INPUT B - INPUT C).
B <= A <= C
O
UTPUT
INPUT A
INPUT B
INPUT C
The OUTPUT is set to the value
of INPUT A, limited to between
a maximum value of INPUT C
and a minimum value of INPUT
B. If INPUT B is greater than
INPUT C the output is
undefined.
A>B+/-C
O
UTPUT
INPUT A
INPUT B
INPUT C
The OUTPUT is TRUE if
INPUT A is greater than INPUT
B + INPUT C. The OUTPUT is
FALSE if INPUT A is less than
INPUT B - INPUT C.
Otherwise the OUTPUT is unchanged. In this way the block acts as a simple
comparator with a comparison level of INPUT B and a hysteresis band equal
to +/- INPUT C.
A>=B
O
UTPUT
INPUT A
INPUT B
The OUTPUT is TRUE if
INPUT A is greater than or
equal to INPUT B, otherwise
the OUTPUT is FALSE.
ABS(A)>
ABS(B)+/-C
OUTPUT
|INPUT A|
|INPUT B|
INPUT C
The OUTPUT is TRUE if the
magnitude of INPUT A is
greater than or equal to the
magnitude of INPUT B -
INPUT C.
The OUTPUT is FALSE if the magnitude of INPUT A is less than the
magnitude of INPUT B - INPUT C. Otherwise the OUTPUT is unchanged.
In this way the block acts as a magnitude comparator with a comparison
level of INPUT B and a hysteresis band equal to +/- INPUT C.
ABS(A)>
=ABS(B)
O
UTPUT
|INPUT A|
|INPUT B|
The OUTPUT is TRUE if the
magnitude of INPUT A is
greater than or equal to the
magnitude of INPUT B,
otherwise the OUTPUT is
FALSE.
A(1+B) The OUTPUT is set to INPUT A + ( INPUT A * INPUT B / 100.00 ).
IF(C) HOLD A If INPUT C is zero, the OUTPUT is set to INPUT A, otherwise the
OUTPUT is unchanged.
On powering up the drive, the output will be pre-loaded with the last saved
value of input B.
BINARY
DECODE
The OUTPUT is set according to which of the INPUTs are non-zero.
INPUT C INPUT B INPUT A OUTPUT
000 0.00
00≠00.01
0 ≠0 0 0.02
0 ≠0 ≠00.03
≠0 0 0 0.04
≠00 ≠00.05
≠0 ≠0 0 0.06
≠0 ≠0 ≠00.07
In the above table, ≠0 indicates that the corresponding input is not zero.