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Monitor display and monitor output signal
4
PARAMETERS
4.11.3 FM, AM terminal function selection (Pr.55, Pr.56, Pr.867)
(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.)
(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.)
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
Number
Name Initial Value Setting Range Description
55 *
Frequency monitoring
reference
60Hz 0 to 400Hz
Set the full-scale value to output the
output frequency monitor value to
terminal FM and AM.
56 *
Current monitoring
reference
Rated inverter
current
55K or
less
0 to 500A
Set the full-scale value to output the
output current monitor value to terminal
FM and AM.
75K or
more
0 to
3600A
867 AM output filter 0.01s 0 to 5s Set the output filter of terminal AM.
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.
2400
1440
1Hz Output frequency 400Hz
Setting range of Pr. 55
Pulse speed (pulses/s)
60Hz
(initial value)
Setting range of Pr. 55
1Hz 400Hz60Hz
(initial value)
Output voltage
10VDC
2400
1440
Rated output current
(initial value)
500A
Setting range of Pr. 56
Pulse speed (pulses/s)
Setting range of Pr. 56
Rated output current
(initial value)
10VDC
500A
Output voltage
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