Mitsubishi Electric FR-A700 Technical Manual page 108

Name
This function stops the inverter output when
communication error occurs consecutively
for more than permissible retry count when
a value other than "9999" is set in [Pr. 335
Communication RS-485 communication retry] during RS-485
fault (inverter) communication from the RS-485 terminals.
This function also stops the inverter output if
communication is broken for the period of
time set in [Pr. 336 RS-485 communication
check time interval].
For
A700 F700
30mA or more is input or a voltage (7.5V or
more) is input with the terminal 2 or 4 set to
current input.
Analog input fault
For
E700 D700
voltage(current) is input to terminal 4 when the
setting in [ Pr.267 Terminal 4 input selection ] and
the setting of voltage/current input switch are
different.
Indicates that the motor speed exceeds the
Overspeed
over speed setting level during encoder
occurrence
feedback control and vector control.
Stops the inverter output if the motor speed
is increased or decreased under the
Speed deviation
influence of the load etc. during vector
excess detection
control and cannot be controlled in
accordance with the speed command value.
Trips the inverter output when the encoder
Signal loss
signal is shut off under orientation control,
detection
encoder feedback control or vector control.
Indicates that the difference between the
Excessive position position command and position feedback
error exceeded the reference under position
control.
The inverter output is stopped when a
Brake sequence sequence error occurs during use of the
error brake sequence function [Pr. 278 to Pr. 285
Brake sequence function] .
Appears when rotation command of the
Encoder phase inverter differs from the actual motor rotation
error direction detected from the encoder during
offline auto tuning.
This function stops the inverter output if an
alarm occurs in the brake circuit, e.g.
damaged brake transistors. In this case, the
Brake transistor
inverter must be powered OFF immediately.
alarm detection
For
A700 F700
internal circuit fault occurs.
USB When communication has broken during the
communication time set in [Pr. 548 USB communication check
fault time interval], this function trips the inverter.
Description Operation
, the fault appears when
, the fault appears if
(E.MB1to
, it also appears when an
101
Indication
Parameter unit
panel FR-PU04 FR-PU07
VFD
Fault 14 Comm
(E.SER)
error
Analog in
Fault 14
error
(E.AIE)
E.OS
(E.OS)
E.OSd
(E.OSD)
E.ECT
(E.ECT)
Fault 14 E.Od
(E.OD)
to
E.MB1 Fault to
E.MB7 Fault
E.MB7)
Encoder
Fault 14 phase
(E.EP)
error
Br. Cct. Fault
(E.BE)
USB
Fault 14 comm
error
(E.USB)
SPECIFICATIONS
Available Inverters
A700 F700 E700 D700
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