Veikong VFD500 Series Operation Manual page 88

Chapter 5 Function code table
Variable selector
P44.17 4 hysteresis
width
Logic block 1
P44.18 threshold
parameter 1
Logic block 1
threshold
P44.19
parameter2
Logic block 1
P44.20
input source
Logic bock 1
P44.21
function
VFD300A 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
Parameter1
P44.19
parameter2
Logic block 2
P44.22 threshold
parameter 1
Logic block 2
threshold
P44.23
parameter2
Logic block 2
P44.24
input source
VFD500 high performance vector control frequency inverter user manual
0～65535
00.00-98.99(function code index)
00.00-98.99(function code index)
Unit'digit：parameter 1 bit selection
0-F (Represent 0-15),PP44.18 corresponds
to 0-15 bit
Ten'digit:parameter 2 bit selection
0-F (Represent 0-15),PP44.19 corresponds
to 0-15 bit
0:no function;1:and;2:or;3:not and;4:not
or;5:Xor
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
10:Ref2=0 ineffective always;Ref2=1,Ref1 up
effective
Logical unit input
P44.20
Ref1
Parameter bit
selection
Ref2
Unit's digit:select
1bit parameter
Ten's digit:select
2bit parameter
00.00-98.99(function code index)
00.00-98.99(function code index)
Unit'digit：parameter 1 bit selection
0-F (Represent 0-15),PP44.22 corresponds
to 0-15 bit
- 85-
0
00.00
00.00
0
0
P44.21
Logical unit
Logical
output
function
processing
00.00
00.00
0
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