Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 494

• The following is the operation example during External operation.
Output frequency
Analog input
20mA
4mA
STF
LF signal
• The following is the operation example during PID control (reverse action) operation.
Output frequency
20mA
Set point (fixed)
Measured value
4mA
STF
LF signal
PID signal
NOTE
• When the setting is changed to the continuous operation (Pr.573 = "1 or 4") after the input current loss, the frequency before
loss is regarded as 0 Hz.
 Fault output (Pr.573 = "2")
• When the analog current input becomes 2 mA or lower, the protective function E.LCI (4 mA input fault) is activated and the
output is shut off.
• The following is the operation example during PID control (reverse action) operation.
Output frequency
20mA
Set point (fixed)
Measured value
4mA
STF
LF signal
PID signal
ALM signal
 Fault output after deceleration to stop (Pr.573 = "3")
• When the analog current input becomes 2 mA or lower, the inverter output decelerates the motor to a stop, and then the
protective function E.LCI (4 mA input fault) is activated and the output is shut off.
Pr.573=1 : Operation continued with the frequency before being lost
Pr.573=4 : Operation continued with Pr.777 setting
Return
Input current
decrease
3mA
2mA
Pr.573=1 : Operation continued with the frequency before being lost
Pr.573=4 : Operation continued with Pr.777 setting
Input current
decrease
Return
3mA
2mA
On during input decrease
E.LCI occurs
Input current
decrease
Return
3mA
2mA
Time
Time
Time
5.12 (T) Multi-function input terminal parameters
1
2
3
4
5
6
7
8
9
10
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5. PARAMETERS