Hitachi SJ700 Series Software, Instruction Manual

Page: 88 / 134

Chapter 5 Instruction Words
5 - 34
Variable name Range of values Default Unit Data size Attribute
YA (0)
General-purpose analog output
(FM terminal)
YA (1)
General-purpose analog output
(AM terminal)
YA (2)
General-purpose analog output
(AMI terminal)
0 to 10000 0 0.01 %
Unsigned
1-word
data
Readable
and
writable
- Explanation
These variables can be used to monitor the data output to the FM, AM, and AMI terminals (analog
output terminals of the inverter) in a data range from 0% to 100.00%. To obtain the analog outputs, you
must assign general-purpose output functions to the FM, AM, and AMI terminals with inverter
parameters "C027", "C028", and "C029".
YA (0): FM output terminal (C027 = 12 [YA0])
YA (1): AM output terminal (C028 = 13 [YA1])
YA (2): AMI output terminal (C029 = 14 [YA2])
- Sample program: Program to output inverter output frequency data to a general-purpose analog
output as data that is one-half of the full-scale data
：
FW= 1
LOOP UL(00)= XA(0) : Fetch analog input data.
UL(00)= UL(00) * 60 : Convert the scale.
UL(00)= UL(00) / 100
SET-Freq= UL(00) : Set the output frequency.
UL(01)= FM * 100
UL(01)= UL(01) / 60 : Convert the scale.
YA(1)= UL(01) / 2 : Output data that is one-half of the full-scale data.
goto LOOP
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