Change The Frequency (50Hz) Of The Maximum Value Of Potentiometer (At 20Ma) - Mitsubishi Electric FR-F 700 EC Instruction Manual

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Make a start and stop with terminals
(external operation)
The motor will not rotate ... Why?
Check that [EXT] is lit.
[EXT] is valid when Pr. 79 = "0" (initial value).
PU
Use
EXT
Check that the AU signal is on.
Turn the AU signal on.
Check that wiring is orrect. Check it again.
Change the frequency (0Hz) of the minimum value of potentiometer (at 4mA)
Adjust the frequency in calibration parameter C5 Terminal 4 frequency setting bias frequency.
(Refer to
3.5.6

Change the frequency (50Hz) of the maximum value of potentiometer (at 20mA)

<How to change the maximum frequency?>
Changing example
When you want to use the 4 to 20mA input frequency setting potentiometer to change the 20mA-
time frequency from 50Hz (initial value) to 40Hz
Adjust to output 40Hz at 20mA current input.
Set "40Hz" in Pr. 126.
1.
Turn
2.
Press
(50.00Hz)
3.
Turn
(40.00Hz)
4.
Press
5.
Mode/monitor check
Press
monitor/frequency monitor.
6.
Turn the start switch (STF or STR) on to allow
20mA current to flow.
(Refer to 3.5.5 steps 2 to 5)
Set frequency at 4mA using calibration
parameter C5 and adjust the indicator using
calibration parameter C0.
(Refer to
Instruction Manual (applied).)
REMARKS
As other adjustment methods of frequency setting voltage gain, there are methods to adjust with a voltage applied to across
terminals 4-5 and adjust at any point without a voltage applied.
(Refer to
Instruction Manual (applied) for the setting method of calibration parameter C7.)
48
to lit [EXT].
Instruction Manual (applied).)
Operation
until
(Pr. 126) appears.
to show the currently set value.
to change the set value to "
to set the value.
twice to choose the
Display
".
···
Flicker
40Hz output at 20mA input complete!!
50Hz
Bias
C5
(Pr.904)
0
20
0
4
Frequency setting signal
C6 (Pr.904)
Initial value
Gain
Pr.126
100%
20mA
C7
(Pr.905)

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