Danfoss VFD500 Series Manual page 110

VFD500 high performance vector control frequency inverter user manual
P44.20
P44.21
VFD500 built-in 4 logical units. The logic unit can perform any one of 0-15 bits of any parameter 1 and any one of
0-15 bits of any parameter 2 for logic processing. The condition is true output 1, otherwise 0 is output. Logic unit
output can be used as DI, VDI, delay unit and other inputs, DO, relays and other output, the user can more
flexible access to the required logic. The schematic block diagram of the logic unit 1 is as follows.
P44.18
Parameter 1
P44.19
parameter 2
!
P44.22
P44.23
P44.24
P44.25
P44.26
P44.27
P44.28
Unit'digit：parameter 1 bit selection
0-F (Represent 0-15),P44.18 corresponds to
Logic block 1
0-15 bit
input source
Ten'digit:parameter 2 bit selection
0-F (Represent 0-15),P44.19 corresponds to
0-15 bit
0:no function;1:and;
2:or;
3:not and;
4:not or;
Logic bock 1 5: exclusive OR
function 6:Ref=1 effective;Ref2=1 ineffective
7:Ref1 up effective,Ref2 up ineffective
8:Ref1 up and signal reverse
9:Ref1 up and output 200ms pulse width
P44.20
Parameter bit
selection
Unit s digit:select
1bit parameter
Ten s digit:select
2bit parameter
Logic block 2
threshold 00.00-98.99(function code index)
parameter 1
Logic block 2
threshold
00.00-98.99(function code index)
parameter2
Unit'digit：parameter 1 bit selection
0-F (Represent 0-15),P44.22 corresponds to
Logic block 2
0-15 bit
input source
Ten'digit:parameter 2 bit selection
0-F (Represent 0-15),P44.23 corresponds to
0-15 bit
0:no function;
1:and;
2:or;
3:not and;
Logic bock 2 4:not or;
function 5: exclusive OR
6:Ref=1 effective;Ref2=1 ineffective
7:Ref1 up effective,Ref2 up ineffective
8:Ref1 up and signal reverse
9:Ref1 up and output 200ms pulse width
Logic block 3
threshold 00.00-98.99(function code index)
parameter 1
Logic block 3
threshold 00.00-98.99(function code index)
parameter2
Unit'digit：parameter 1 bit selection
0-F (Represent 0-15),P44.26 corresponds to
Logic block 3
0-15 bit
input source
Ten'digit:parameter 2 bit selection
0-F (Represent 0-15),P44.27 corresponds to
0-15 bit
Logical unit input
P44.21
Ref1
Logical
Ref2
function
processing
107
Chapter 5 function code table
0
0 ☆
Logical unit
output
00.00 ☆
☆
00.00
☆
0
0 ☆
00.00 ☆
☆
0
☆
0