Changing The Output Frequency (60Hz, Initial Value) At The Maximum Current Input (At 20Ma, Initial Value) - Mitsubishi Electric F700 Instruction Manual

Start and stop using 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 correct. 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 the chapter 4 of
3.6.6 Changing the output frequency (60Hz, initial value) at the maximum current input
(at 20mA, initial value)
<How to change the maximum frequency>
Changing example
When you use the 4 to 20mA input and want to change the frequency at 20mA from 60Hz (initial
value) to 50Hz, set "50Hz" in Pr. 126.
1.
Turn
2.
Press
" "(60.00Hz)
3.
Turn
(50.00Hz)
4.
Press
5.
Mode/monitor check
Press
monitor/frequency monitor.
6.
To check the setting, turn the start switch (STF or STR)
on and input 20mA.
The frequency meter (indicator) connected across terminals FM-SD does not indicate exactly 50Hz ... Why?
The meter can be adjusted by calibration parameter C0 FM terminal calibration.
(Refer to the chapter 4 of
Set frequency at 4mA using calibration
parameter C5 and adjust the indicator using
calibration parameter C0.
(Refer to the chapter 4 of
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 the chapter 4 of
64
to lit [EXT].
the Instruction Manual (applied).)
Operation
until (Pr. 126) appears.
to show the present set value.
to change the set value to "
to set the value.
twice to choose the
(Refer to 3.6.5 steps 2 to 5)
Instruction Manual (applied).)
the
the Instruction
the Instruction Manual (applied) for the setting method of calibration parameter C7.)
Display
".
···
Flicker 50Hz output at 20mA input complete!!
60Hz
Bias
C5
(Pr. 904)
0 20
0 4 Frequency setting signal
C6 (Pr. 904)
Initial value
Gain
Pr. 126
100%
20mA
C7 (Pr. 905)