Reference Of The Terminal Fm (Pulse Train Output) (Pr. 55, Pr. 56) - Mitsubishi Electric FR-D720 K Series Instruction Manual

Monitor display and monitor output signal

4.11.3 Reference of the terminal FM (pulse train output) (Pr. 55, Pr. 56)

The pulse train output terminal FM is available for monitor output.
Set the reference of the signal output from terminal FM.
Parameter
Number
Frequency monitoring
55*
reference
Current monitoring
56*
reference
The above parameters can be set when Pr. 160 Extended function display selection =
* The above parameters allow their settings to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter write selection.
(1) Frequency monitor reference (Pr. 55)
Set the full scale value when outputting the frequency monitor from terminal FM.
Set the frequency when the optional frequency meter (1mA analog meter), which is connected to the terminal FM and
SD, shows 60Hz or 120Hz (shows full scale).
Set the inverter output frequency (set frequency) at which the pulse speed of the FM output is 1440 pulses/s.
The pulse speed and inverter output frequency are proportional to each other. (The maximum pulse train output is 2400
pulses/s.)
2400
1440
1Hz 60Hz
(initial value)
Setting range of Pr. 55
(2) Current monitor reference (Pr. 56)
Set the full scale value when outputting the current monitor from terminal FM.
Set the output current at which the pulse speed of the FM output is 1440 pulses/s.
The pulse speed and output current monitor value are proportional to each other. (The maximum pulse train output is
2400 pulses/s.)
2400
1440
Rated current
(initial value)
Setting range of Pr. 56
136
Name Initial Value
60Hz
Inverter
rated current
Output frequency 400Hz
500A
Setting Range
Full-scale value when frequency monitor value is
0 to 400Hz
output to terminal FM.
Full-scale value when current monitor value is
0 to 500A
output to terminal FM.
0 . (Refer to page 165.)
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