Fm, Am Terminal Function Selection (Pr.55, Pr.56, Pr.867) - Mitsubishi Electric FR-F720-0.75K to 110K Instruction Manual

Monitor display and monitor output signal

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 175)
* 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 full scale value when outputting the frequency monitor from terminal FM or AM.
• For the calibration of terminal FM, set the full-scale value of the connected meter when the pulse speed of terminal
FM is 1440 pulse/s.
Set the frequency to be indicated as the full scale value on the frequency meter (1mA analog meter) connected
between terminal FM and SD. (For example, 60Hz or 120Hz.)
Pulse speed is proportional to the output frequency of the inverter. (Maximum pulse train output is 2400 pulse/s.
• For the calibration of terminal AM, set the full-scale value of the connected meter when output voltage of terminal
AM is 10VDC.
Set the frequency to be indicated as the full scale value on the meter (10VDC voltmeter) connected between
terminal AM and 5. (For example, 60Hz or 120Hz)
Output voltage is proportional to the frequency. (Maximum output voltage is 10VDC.)
2400
1440
1Hz 60Hz
(initial value)
Setting range of Pr. 55
136
Initial Value
60Hz
Rated inverter
current
0.01s
Output frequency 400Hz
Setting Range
Full-scale value when frequency
0 to 400Hz monitor value is output to terminal FM
and AM.
55K or
0 to 500A
less
Full-scale value when current monitor
value is output to terminal FM and AM.
75K or 0 to
more 3600A
0 to 5s Set the output filter of terminal AM.
10VDC
1Hz
Setting range of Pr. 55
Description
60Hz 400Hz
(initial value)