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Monitoring Reference (pr. 55, Pr. 56) - Mitsubishi Electric FR-A500 Instruction Manual

Transistorized inverter.
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4.2.22 Monitoring reference (Pr. 55, Pr. 56)

Pr. 55 "frequency monitoring reference"
Pr. 56 "current monitoring reference"
Set the frequency or current which is referenced for display when the frequency or current is selected for the
FM and AM terminals and PU level meter display.
Parameter
Factory Setting
Number
55
60Hz <50Hz>
Rated output
56
current
<Setting>
Referring to the above figures and following table, set Pr. 55 and Pr. 56:
Monitoring Reference
Monitored Data Selection
Setting Parameter
Output frequency (Hz)
Frequency monitoring
Frequency setting (Hz)
reference Pr. 55
Running speed (Pr. 37)
Output current (A)
Output current peak value (A)
Current monitoring
reference Pr. 56
Load meter (A)
Motor excitation current (A)
Setting using Pr. 55, Pr. 56
Note: 1. The maximum pulse train output of terminal FM is 2400 pulses/s. If Pr. 55 is not adjusted, the
output of terminal FM will be filled to capacity. Therefore, adjust Pr. 55.
2. The maximum output voltage of terminal AM is 10VDC.
Setting Range
0 to 400Hz
0 to 500A
1440 pulses/s (terminal FM)
10VDC (terminal AM)
Full scale (PU level monitor)
Output frequency
Pr.55
Frequency setting
Running speed
PU Level Display
Selection
Pr. 53 Setting
1
5
6
2
11
17
18
Set to make the PU
level meter indication
to be in full-scale.
93
PARAMETERS
Related parameters
Pr. 37 "speed display"
Pr. 53 "PU level display data selection"
Pr. 54 "FM terminal function selection"
Pr. 158 "AM terminal function selection"
Pr. 900 "FM terminal calibration"
Pr. 901 "AM terminal calibration"
1440 pulses/s (terminal FM)
10VDC (terminal AM)
Full scale (PU level monitor)
Pr.56
Output current
Output current peak value
Load meter
FM Terminal
Function Selection
Pr. 54 Setting
1
5
6
2
11
17
18
Set to make the
terminal FM pulse train
output to be 1440
pulses/s.
AM Terminal
Function Selection
Pr. 158 Setting
1
5
6
2
11
17
18
Set to make the
terminal AM output
voltage to be 10V.
4

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