Checking Of Current Input On Analog Input Terminal - Mitsubishi Electric FR-A800 Series Instruction Manual

5.12.7 Checking of current input on analog input terminal

When current is input to the analog input terminal 2 or terminal 4, the input current can be checked and the operation when the
input falls below the specified level (the analog current input is lost) can be selected. The operation can be continued even
when the analog current input is lost.
Pr.
573
4 mA input check selection
T052
777
4 mA input fault operation
T053
frequency
A681
778
T054 4 mA input check filter
A682
 Analog current input loss condition (Pr.778)
• When the current input to terminal 4 (terminal 2) continues to be 2 mA or less for the period set in Pr.778, it is considered
as loss of analog current input and the Alarm (LF) signal is turned ON. The LF signal turns OFF when the current input
becomes 3 mA or higher.
• For the LF signal, set "98 (positive logic) or 198 (negative logic)" in any of Pr.190 to Pr.196 (Output terminal function
selection) to assign the function to the output terminal.
Set frequency
60Hz
Current input
decrease detection
∗1
2mA
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Initial
Name
value
9999
9999
0 s
When C3 (C6) = 0%
4mA 20mA
Normal use range
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Setting
range
Operation continues with output frequency
1
before the current input loss.
4 mA input fault (E.LCI) is activated when the
2
current input loss is detected.
The inverter output decelerates the motor to a
stop when the current input loss is detected.
3
After the motor is stopped, 4 mA input fault
(E.LCI) is activated.
Operation continues at the frequency set in
4
Pr.777.
Operation continues at the output frequency
11
before the current input loss.
4 mA input fault (E.LCI) is activated when the
12
current input loss is detected.
The inverter output decelerates the motor to a
stop when the current input loss is detected.
13
After the motor is stopped, 4 mA input fault
(E.LCI) is activated.
Operation continues at the frequency set in
14
Pr.777.
Operation continues at the output frequency
21
before the current input loss.
4 mA input fault (E.LCI) is activated when the
22
current input loss is detected.
The inverter output decelerates the motor to a
stop when the current input loss is detected.
23
After the motor is stopped, 4 mA input fault
(E.LCI) is activated.
Operation continues at the frequency set in
24
Pr.777.
9999 No current input check
Set the frequency to continue operation when current input is
0 to 590 Hz
lost. (Valid when Pr.573 = "4")
9999 No current input check when Pr.573 = "4"
0 to 10 s Set the current input loss detection time.
Analog input
Description
5. PARAMETERS
5.12 (T) Multi-function input terminal parameters
1
2
3
Check the
current input
4
on terminals 2
and 4.
5
6
Check the
current input
on terminal 4.
7
8
Check the
9
current input
on terminal 2.
10
517