Mitsubishi Electric 800 Series Instruction Manual page 341

• PID control (reverse action)
Output frequency
20 mA
4 mA
STF
LF signal
PID signal
NOTE
• When the setting is changed to continuously operate after the input current loss (Pr.573 = "1, 4, 11, 14, 21, or 24"), the
motor will operate as the frequency before loss is 0 Hz.
 Fault output (Pr.573 = "2, 12, or 22")
• When the analog current input becomes 2 mA or lower, 4 mA input fault (E.LCI) will be activated and the output is shut off.
• The following is the operation example during PID control (reverse action) operation.
Output frequency
20 mA
Set point (fixed)
Measured value
4 mA
STF
LF signal
PID signal
ALM signal
340
5. PARAMETERS
5.9 (T) Multi-Function Input Terminal Parameters
Set point (fixed)
Measured value
Pr.573=1, 11, 21 : Operation continued with the frequency before being lost
Pr.573=4, 14, 24 : Operation continued with Pr.777 setting
Input current
decrease
Return
3 mA
2 mA
On during input decrease
E.LCI occurs
Input current
decrease
Return
3 mA
2 mA
Time
Time