Mitsubishi Electric FR-A700 Technical Manual page 323

(2) AM terminal calibration [C1(Pr. 901)]
A700 F700
Terminal AM is factory-set to provide a 10VDC output
in the full-scale status of the corresponding monitor
item. Calibration parameter [C1 (Pr. 901)] allows the
output voltage ratios (gains) to be adjusted according
to the meter scale. Note that the maximum output
voltage is 10VDC.
Inverter
AM
5
2.15.5 Signal selection and calibration of terminal AM0, AM1 (FR-A7AY)
[Pr. 307 to 309
Signal output from terminal AM0 (analog voltage output) and AM1 (analog current output) when the plug-in option FR-A7AY is
fitted to the inverter can be selected and calibrated.
[Pr. ] Name
Setting for zero
307
analog output
Setting for maximum
308
analog output
Voltage/current
selection for analog
309
output signal
Setting for zero
analog meter
311
voltage output
Setting for maximum
analog meter
312
voltage output
AM0 0V
323
adjustment
AM1 0mA
324
adjustment
FM terminal
C0(900)
calibration
AM terminal
C1(901)*
calibration
* The setting is available for
E700
DC10V
311 312 323 324, C0(Pr. 900), C1(Pr.901)]
, , , ,
Initial Setting
Value Range
[Pr. 309 = 0, 1] : Output signal value for zero analog output
0% 0 to 100%
When[ Pr. 309 = 10,11]: Analog output value for zero output signal
[Pr. 309 = 0, 1] : Output signal value for maximum analog output
100% 0 to 100%
[Pr. 309=10, 11] : Analog output value for maximum output signal
0
Signal selection ( same signal is output from terminal AM0 and AM1) using [Pr. 306]
Full-scale calibration using [C1 (Pr. 901)]
Adjustment of output signal value using [Pr. 307, Pr. 308]
Selection of signal using [Pr. 310]
Full-scale calibration using [C0 (Pr. 900)]
1
Adjustment of output signal value using
0
[Pr. 311, Pr. 312]
Signal selection ( same signal is output from terminal AM0 and AM1) using [Pr. 306]
10 Full-scale calibration using [C1 (Pr. 901)]
Adjustment of analog output value using [Pr. 307, Pr. 308]
Selection of signal using [Pr. 310]
Full-scale calibration using [C0 (Pr. 900)]
11
Adjustment of analog output value using
[Pr. 311, Pr. 312]
[Pr. 309 = 1]: Output signal value for zero analog output
0% 0 to 100%
[Pr. 309 = 11]: Analog output value for zero output signal
[Pr. 309 = 1] : Output signal value for maximum analog output
100% 0 to 100%
[Pr. 309 = 11]: Analog output value for maximum output signal
900 to
1000% The meter connected to terminal AM0 can be adjusted to stop at 0.
1100%
900 to
1000% The meter connected to terminal AM1 can be adjusted to stop at 0.
1100%
— — Scale of the connected meter to terminal AM0 can be calibrated.
— — Scale of the connected meter to terminal AM1 can be calibrated.
when it has built-in option FR-A7AY installed.
Connect a meter/frequency meter (DC voltmeter
10V) to across inverter terminals AM-5. (Note the
polarity. The terminal AM is positive.)
Set the monitor description in [Pr. 158] and operate
the inverter. (It is not necessary to connect the
motor.) Read [C1] and turn
voltage, enabling the indicator/frequency meter to be
calibrated. When calibrating a monitor output signal,
which cannot adjust to a 100% value without an
actual load and a measurement equipment, set [Pr.
54 = 21] (reference voltage output) and make
calibration. 10VDC is output from the terminal AM.
Description
Output signal selection, calibration/adjustment method
Terminal AM0
357
PARAMETER
to change the output
A700 F700 E700
(A700)( F 700)(E700)
Terminal AM1
Selection of signal using [Pr. 306]
Full-scale calibration using [C1 (Pr. 901)]
Adjustment of output signal value using
[Pr. 307, Pr. 308]
Selection of signal using [Pr. 306]
Full-scale calibration using [C1 (Pr. 901)]
Adjustment of analog output value using
[Pr. 307, Pr. 308]
2