Mitsubishi FR - S500 instruction manual NA and EC version AM, Cpu

Digital indicator

Since the digital indicator counts and displays the number of pulses, adjust it from the operation panel or parameter unit.

The inverter output, at which the reference pulses of 1440 pulses/s are output, can be set in Pr. 55 when frequency monitoring is used as reference, or in Pr. 56 when current monitoring is used as reference.

[Example] 1. To set the output across FM-SD to 1440 pulses/s at the inverter output frequency of 120Hz, set "120" (Hz) in Pr. 55. (Factory setting: 60Hz)

2.To set the output across FM-SD to 1440 pulses/s at the inverter output current of 15A, set "15" (A) in Pr. 56. (Factory setting: rated inverter current)

(2) NA and EC version (AM)

Afull-scale 5VDC analog signal can be output from across terminals AM-5.

The analog output level can be calibrated by the operation panel or parameter unit (FR-PU04). Terminal AM function selection can be set in Pr. 54 "AM terminal function selection".

Terminal AM is isolated from the control

circuit of the inverter. The cable length should not exceed 30m (98.44feet).

The output signal from terminal AM delays about several 100ms in output and therefore cannot be used as a signal for control which requires fast response.

CPU

Meter

5V full scale

Analog meter

1mA

AM

5

Inverter

AM		AM
circuit	5		5VDC

Terminal AM Output Circuit

Adjustment

Set the reference output value of the inverter which outputs the full-scale voltage 5VDC.

Set it in Pr. 55 for frequency monitoring reference, or in Pr. 56 for current monitoring reference.

Use the terminal AM output calibration parameter C1 to adjust the output voltage. [Example] 1. To set the output across AM-5 to 5VDC at the inverter output frequency

of 90Hz, set 90Hz in Pr. 55. (Factory setting: 50Hz)

2.To set the output across AM-5 to 5VDC at the inverter output current of 20A, set 20A in Pr. 56. (Factory setting: rated inverter current)

CAUTION

•Refer to page 113 for the procedure of indicator adjustment.

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