Moeller DF51 - Logic Functions

10/05 AWB8230-1541GB
Mathematical and logic
functions
129
Example:
PNU A145 = 20 Hz, A004 = 50 Hz, A146 = 00, A001 = 0 –
50 Hz.
In the range 0 to 30 Hz the full frequency offset (20–Hz) is added
to the reference frequency (PNU A001). In the range 30 to 50 Hz
only the value that applies up to the maximum frequency
(PNU A004) is added, for example 40 Hz + 20 Hz a 50 Hz
(limited).
Example: PNU A145 = 20 Hz, A146 = 01, A001 = 0 – 50 Hz.
In the range 20 to 50 Hz the frequency offset (20–Hz) is subtracted
from the reference frequency (PNU A001). If the reference
frequency is set below 20 Hz, the direction of rotation is
automatically reversed and the drive is adjusted to the differential
value, for example 10 Hz (FWD) – 20 Hz (PNU A145) = 10 Hz
(REV).
Logic functions
With PNU C143 you can establish a logic link between two digital
signals (A and B). PNU C141 specifies signal A and PNU C142
signal B.
The table below lists the possible logic links:
h
Caution!
Automatic change of direction on subtraction
(PNU A146 = 01) when the frequency offset set with
PNU A145 is greater than the reference frequency.
Figure 136:Logic linking of A and B
00
01
02
03
04
05
06
07
08
10
RUN
C142
FA1
FA2
OL
OD
AL
Dc
FBV
NDc
ODc
00
01
02
03
04
05
06
07
08
10
RUN
C141
FA1
FA2
OL
OD
AL
Dc
FBV
NDc
ODc
00
01
02
A AND B
A OR B
A XOR B
C143
LOG
A
B
C021 1109
CM2
C022 1209
C02609
K11
K12
K14
Signal Logic link (LOG)
ABAND OR XOR (exclusive
or)
000 0 0
010 1 1
100 1 1
111 1 0
Signal
Logic link (LOG)
ABAND OR XOR (exclusive
or)