Monitor Terminal Function; Monitor Terminal Function [Fm] (Analog); Output Frequency Monitor Signal; Output Current Monitor Signal - Hyundai N700E Instruction Manual

N700E INSTRUCTION MANUAL
5.2

Monitor terminal function

Monitor terminal function [FM] (analog)

• The inverter provides an analog output terminal primary for frequency monitoring on terminal [FW]
(output frequency, Output current, and output voltage monitor signal).
• Parameter C17 selects the output signal data.
When using the analog motor for monitoring, use scale reactor C18 and C19 to adjust the [FM] output
so that the maximum frequency in the inverter corresponds to full-scale reading on the motor.

(1) output frequency monitor signal

The [FM] output duty cycle varies with the inverter output frequency.
The signal on [FM] reaches full scale when the inverter outputs the maximum frequency.
Note) This is dedicated indicator, so that it cannot be used as a line speed signal.
The indicator accuracy after adjustment is about ±5%
(Depending on the meter, the accuracy may exceed this value)

(2) output current monitor signal

The [FM] output duty cycle waries with the inverter output current to the motor.
The signal on [FM] reaches full scale when the inverter output current reaches 200% of the rated
inverter current.
(3) output voltage monitor signal
The [FM] output duty cycle varies with inverter output voltage.
The signal on [FM] reaches full scale when the inverter output voltage reaches 100% of the rated
inverter voltage.
The accuracy of the current reaches approximately ±10%
inverter output current (measured) : Im
monitor display current
inverter rated current
: Im'
: Ir
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