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FM terminal
The FM control terminal can monitor the output frequency and output current.
FM terminal is a PWM (Pulse Width Modulation) output.
(1) FM selection
Select a signal to output from the following options.
When 03(digital frequency) is set a digital frequency counter meter is required.
Use an analog meter for all other output signals.
Function
code
Data
Description
Full scale value
00
Output frequency (Example 1)
0-Max. frequency(Hz)
01
Output current (Example 1)
0-200%
03
Digital output frequency
(Example 2)
0-Max. frequency(Hz)
04
Output voltage (Example 1)
0-100%
05
Input electric power (Example 1)
0-200%
06
Thermal load ratio (Example 1)
0-100%
C027
07
LAD frequency (Example 1)
0-Max. frequency(Hz)
(2) FM adjustment
This function is used to calibrate a meter connected to the FM terminal.
Function code
Set range
Description
b081
0. -255.
Change one by one.
(Calibration methods)
(1) Connect meter to FM-CM1.
(2) Adjust b081 so that the meter is reading the same as the output frequency on your scale.
(Example) When output frequency is 60Hz, change value of b081 so that meter is 60Hz.
Chapter 4 Explanation of function
C027: FM selection
b081: FM adjustment
Relation code
Period T: constant (6.4m)
Duty t/T : change
t
T
t
T
Period T: change
Duty t/T : 50%fixed
(Example 1) Set value:00, 01, 04, 05, 06, 07
(Example 2) Set value: 03