Mitsubishi FR-E 500 User Manual

PARAMETERS
156
Pr. 54 "FM terminal function
selection"
Pr. 55 "frequency monitoring
reference"
Pr. 56 "current monitoring
reference"
Related parameters
4.2.50 Meter (frequency meter) calibration (Pr. 900)
(200V class, 100V class)
Pr. 900 "FM terminal calibration"
"
By using the control panel or parameter unit, you can calibrate a meter connected to
terminal FM to full scale deflection.
"
Terminal FM provides the pulse output. By setting Pr. 900, you can calibrate the
meter connected to the inverter from the parameter unit without providing a
calibration resistor.
"
You can display a digital value on a digital counter using the pulse train signal from
terminal FM. A 1440pulses/s output is provided at the full scale value as explained in
the section of Pr. 54. When the running frequency has been selected for monitoring,
the ratio of this FM terminal output frequency can be set in Pr. 55.
(
−
)(
+
)
1mA
DC8V
T2
T1
FM
SD
(Digital meter)
1440pulses/s
FM
SD
Meter
1mA full scale
Analog meter
Note : The parameter is factory-set to 1mA
full-scale or 1440pulses/s.
FM output frequency at 60Hz.
Pulse width T1 : Adjusted with Pr. 900
Pulse period T2 : Set in Pr. 55 (frequency monitoring)
Set in Pr. 56 (current monitoring)
(
+
)(
−
)
Calibration
resistor
*
* Not needed when the control panel (FR-PA-02-
02
) or parameter unit (FR-PU04) is
used for calibration. Used when calibration must be made near the frequency meter
for such a reason as a remote frequency meter. However, the frequency meter
needle may not deflect to full-scale if the calibration resisitor is connected. In this
case, use this resistor and the control panel or parameter unit together.
(1)Calibration of terminal FM
1) Connect a meter (frequency meter) across inverter terminals FM-SD.
(Note the polarity. FM is the positive terminal.)
2) When a calibration resistor has already been connected, adjust the resistance to
"0" or remove the resistor.
3) Set any of "0 to 2" in Pr. 54.
When the running frequency or inverter output current has been selected as the
output signal, preset in Pr. 55 or Pr. 56 the running frequency or current at which
the output signal is 1440pulses/s.
At this 1440pulses/s, the meter normally deflects to full scale.
4

Mitsubishi FR-E 500 Specifications

General

Brand	Mitsubishi
Model	FR-E 500
Category	Inverter
Language	English