Mitsubishi FR-S500 Instruction Manual download pdf (Page 122)

113

REMARKS

• Depending on the set value, it may take some for the needle to move.

• If "1" is set in Pr. 30 "extended function display selection", the calibration parameter

C1 "FM terminal calibration" can also be set in the external operation mode.

• C1 is factory-set to 1mA full-scale or 1440 pulses/s FM output frequency at 60Hz.

The maximum pulse train output of terminal FM is 2400 pulses/s.

• When a frequency meter is connected across terminals FM-SD to monitor the

running frequency, the FM terminal output is filled to capacity at the factory

setting if the maximum output frequency reaches or exceeds 100Hz. In this case,

the Pr. 55 setting must be changed to the maximum frequency.

• When the FR-PU04 is used, make calibration with Pr. 900.

POINT

By setting the Pr. 54

"FM terminal function selection" value, preset Pr. 55 "frequency

monitoring reference" or Pr. 56 "current monitoring reference" to the running

frequency or current value at which the output signal is 1440 pulses/s.

At 1440 pulses/s, the meter generally deflects to full-scale.

.12.2 Meter (frequency meter) calibration

(NA and EC version)

The AM terminal is factory-set to provide 5VDC output in the full-scale status of

each monitor item. However, calibration parameter C1 can be used to adjust the

output voltage ratio (gain) according to the meter scale. Note that the maximum

output voltage is 5VDC.

Parameter Name Factory Setting Setting Range Remarks

C1 (901)

AM terminal

calibration

——— ———

Setting is enabled when

Pr. 30 = "1"

The parameter number within the parentheses applies to when the parameter unit (FR-

PU04) is used.

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Mitsubishi FR-S500 Instruction Manual Page 122