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Chapter 5 Instruction Words
5 - 37
5.9 Inverter Montor Variables
Variable name
Range of values
Default
Unit
Data size
Attribute
FM
Output frequency
monitoring
0 to 40000
-
0.01 Hz
Unsigned
1-word data
Readable
- Explanation
This variable can be used to monitor the inverter output frequency. The data monitored with this
variable corresponds to the data monitored by the output frequency monitoring function (d001). This
variable is read-only.
- Sample program:
Program to turn a contact output on when output frequency exceeds 50 Hz and turn
the contact output off when output frequency falls below 10 Hz
(Code area [Code Window])
:
LOOP if
FM
<
U(00) then LBL1 :
When the output frequency is less than 10 Hz
if
FM
>
U(01)
then
LBL2
: When the output frequency is more than 50 Hz
goto
LBL3
LBL1
UB(02)=
0
: Turn UB (02) off.
goto
LBL3
LBL2
UB(02)=
1
: Turn UB (02) on.
LBL3
Y(02)=
UB(02)
: Set the data of UB (02) in Y (02).
goto
LOOP
:
(Data area [Data Window])
U(00) = 1000
: Set the frequency of 10 Hz in variable "U (00)".
U(01) = 5000
: Set the frequency of 50 Hz in variable "U (01)".
Summary of Contents for SJ700 Series Software
Page 8: ...Contents vii ...
Page 10: ......
Page 16: ...Chapter 1 Introduction 1 6 ...
Page 18: ......
Page 24: ...Chapter 2 Creation and Execution of a User Program 2 6 ...
Page 26: ......
Page 30: ...Chapter 3 Syntax 3 4 ...
Page 32: ......
Page 54: ......
Page 102: ......
Page 110: ...Chapter 6 Interface with the Inverter 6 8 ...
Page 112: ......
Page 115: ...Chapter 8 Appendix 8 1 Inverter Parameters and Available Settings 8 1 ...
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