Fm, Am Terminal Function Selection (Pr.55, Pr.56, Pr.867) - Mitsubishi Electric F700 Instruction Manual

4.11.3 FM, AM terminal function selection (Pr.55, Pr.56, Pr.867)

For signal output, two different output terminals are available: pulse train output terminal FM and analog
output terminal AM.
You can select the signals output to the terminals FM, AM.
Parameter
Name
Number
Frequency monitoring
55 *
reference
Current monitoring
56 *
reference
867 AM output filter
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 156)
* The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set
in Pr. 77 Parameter write selection.
(1) Frequency monitoring reference (Pr.55)
• Set the frequency to be based when the frequency is selected as the display of the terminal FM and terminal AM.
• Set the inverter output frequency (set frequency) so that the pulse speed of the terminal FM is 1440 pulses/s.
The pulse speed and inverter output frequency are proportional to each other. Note that the maximum pulse
train output is 2400 pulses/s.
• Set the reference value of the frequency so that the output voltage of the terminal AM is 10VDC.
• The output voltage and frequency are proportional to each other. (The maximum output voltage is 10VDC.)
2400
1440
1Hz 60Hz
(initial value)
Setting range of Pr. 55
(2) Current monitoring reference (Pr.56)
• Set the current so that the pulse speed of the terminal FM is 1440 pulses/s.
• The pulse speed and current value are proportional to each other. Note that the maximum pulse train output is
2400 pulses/s.
• Set the reference value of the current so that the output voltage of the terminal AM is 10VDC.
• The output voltage and current value are proportional to each other. (The maximum output voltage is 10VDC.)
2400
1440
Rated output current
(initial value)
Setting range of Pr. 56
Initial Value Setting Range
60Hz
55K or
less
Rated inverter
current
75K or
more
0.01s
Output frequency 400Hz
500A
Monitor display and monitor output signal
Set the full-scale value to output the
0 to 400Hz output frequency monitor value to
terminal FM and AM.
0 to 500A Set the full-scale value to output the
output current monitor value to terminal
0 to
FM and AM.
3600A
0 to 5s Set the output filter of terminal AM.
10VDC
1Hz 60Hz
(initial value)
Setting range of Pr. 55
10VDC
Rated output current
(initial value)
Setting range of Pr. 56
Description
400Hz
500A
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