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Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual Page 453

Fr-a800 series.
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Setting
Positive
Negative
logic
logic
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452
5. PARAMETERS
5.11 (M) Item and output signal for monitoring
Signal
Function
name
Instantaneous power failure/
IPF
*5
undervoltage
OL
Overload warning
FU
Output frequency detection
Second output frequency
FU2
detection
Third output frequency
FU3
detection
Regenerative brake
RBP
*2
prealarm
Electronic thermal O/L relay
THP
pre-alarm
PU
PU operation mode
RY
Inverter operation ready
Y12
Output current detection
Y13
Zero current detection
FDN
PID lower limit
FUP
PID upper limit
PID forward/reverse rotation
RL
output
MC1
Electronic bypass MC1
MC2
Electronic bypass MC2
MC3
Electronic bypass MC3
BOF
Brake opening request
BOF2
Second brake opening request
FAN
Fan fault output
FIN
Heatsink overheat pre-alarm
Orientation complete
(output for a Vector control
ORA
*4
compatible option)
Orientation fault
(output for a Vector control
ORM
*4
compatible option)
Operation
Outputted when an instantaneous power
failure or undervoltage protection operation
occurs.
Outputted while the stall prevention function
works.
Outputted when the output frequency
reaches the frequency set in Pr.42 (Pr.43
during reverse rotation) or higher.
Outputted when the output frequency
reaches the frequency set in Pr.50 or higher.
Outputted when the output frequency
reaches the frequency set in Pr.116 or
higher.
Outputted when the regenerative brake duty
reaches 85% of the setting of Pr.70.
Outputted when the cumulative electronic
thermal O/L relay value reaches 85% of the
trip level. (The electronic thermal O/L relay
function (E.THT/E.THM) is activated when
the value reaches 100%.)
Outputted when the PU operation mode is
selected.
Outputted when the reset process is
completed after powering ON the inverter or
when the inverter is ready to start operation
with the start signal ON or during operation.
Outputted when the output current is higher
than the Pr.150 setting for the time set in
Pr.151 or longer.
Outputted when the output current is lower
than the Pr.152 setting for the time set in
Pr.153 or longer.
Outputted when the input value is lower than
the lower limit set for the PID control
operation.
Outputted when the input value is higher
than the upper limit set for the PID control
operation.
Outputted during forward rotation operation
in the PID control operation.
Used to work the electronic bypass function.
Outputted to release the brake while the
brake sequence function is enabled.
Outputted to release the brake while the
second brake sequence function is enabled
(while the RT signal is ON).
Outputted when a fan fault occurs.
Outputted when the heat sink temperature
rises to 85% of temperature at which the
protective function of the Heatsink overheat
is activated.
Outputted while the orientation control
operation is enabled.
Refer
Related
to
parameter
page
597,
Pr.57
604
Pr.22, Pr.23,
Pr.66, Pr.148,
409
Pr.149, Pr.154
Pr.42, Pr.43
461
Pr.50
461
Pr.116
461
Pr.70
689
Pr.9
394
Pr.79
370
456
Pr.150, Pr.151
464
Pr.152, Pr.153
464
Pr.127 to Pr.134,
570
Pr.575 to Pr.577
Pr.135 to Pr.139,
532
Pr.159
Pr.278 to Pr.285,
Pr.292
541
Pr.641 to Pr.648
Pr.244
402
754
Pr.350 to Pr.366,
Pr.369, Pr.393,
554
Pr.396 to Pr.399

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