Mitsubishi Electric FR-A700 Manual page 21

Terminal
Type Terminal Name
Symbol
Relay output 1 (alarm
A1, B1, C1
output)
A2, B2, C2 Relay output 2
RUN Inverter running
SU Up to frequency
OL Overload alarm
Instantaneous power
IPF
failure
FU Frequency detection
Open collector output
SE
common
For meter
FM
Open collector output
AM Analog signal output

PU connector
TXD+, Inverter transmission
TXD- terminal
RS-485
RXD+, Inverter reception
terminals
RXD- terminal
SG Earth (Ground)

USB connector
CAUTION
⋅ The inverter will be damaged if power is applied to the inverter output terminals (U, V, W). Never perform such wiring.
⋅
indicates that terminal functions can be selected from Pr.178 to Pr.196 (I/O terminal function selection).
⋅ Terminal names and terminal functions are those of the factory set.
*1 Low indicates that the open collector output transistor is on (conducts). High indicates that the transistor is off (does not conduct).
*2 Not output during inverter reset.
1 changeover contact output indicates that the inverter protective function has activated and
the output stopped. Alarm: discontinuity across B-C (continuity across A-C), Normal:
continuity across B-C (discontinuity across A-C) Contact capacity 230VAC 0.3A (power
factor =0.4) 30VDC 0.3A
1 changeover contact output, contact capacity 230VAC, 0.3A (power factor=0.4) 30VDC
0.3A
Switched low when the inverter output frequency is equal to or
higher than the starting frequency (initial value 0.5Hz).
Switched high during stop or DC injection brake operation.
Switched low when the output frequency
reaches within the range of ±10% (initial value)
of the set frequency. Switched high during
acceleration/deceleration and at a stop.
Switched low when stall prevention is
activated by the stall prevention function.
Switched high when stall prevention is
cancelled.
*1
Switched low when an instantaneous
power failure and under voltage
protections are activated.
*1
Switched low when the inverter output
frequency is equal to or higher than the
preset detected frequency and high when
less than the preset detected frequency.
Common terminal for terminals RUN, SU, OL, IPF, FU
Select one e.g. output frequency from
monitor items.
*2
The output signal is proportional to the
magnitude of the corresponding
monitoring item.
With the PU connector, communication can be made through RS-485. (1:1 connection
only)
⋅ Conforming standard: EIA-485(RS-485)
⋅ Transmission format: Multi-drop link
With the RS-485 terminals, communication can be made through RS-485.
⋅ Conforming standard: EIA-485(RS-485)
⋅ Transmission format: Multi-drop link
The FR-Configurator can be operated by connecting the inverter to the personnel
computer through USB.
⋅ Interface: conforms to USB1.1
⋅ Transfer rate: FS transfer (12Mbps)
Description
*1
*1
Permissible load 24VDC
0.1A
(a voltage drop is 2.8V
Alarm code (4bit)
maximum when the
output
signal is on)
(Refer to page 53.)
*1
Output item: output frequency (initial
setting),
permissible load current 2mA,
1440 pulses/s at 60Hz
Signals can be output from the open collector
terminals by setting Pr.291. (maximum output
pulse: 50kpulses/s)
Output item: output frequency (initial
setting),
output signal 0 to 10VDC,
permissible load current 1mA(load impedance
10kΩ or more),
resolution 8 bit
⋅ Communication speed: 4800 to 38400bps
⋅ Overall extension: 500m
⋅ Communication speed: 300 to 38400bps
⋅ Overall extension: 500m
⋅ Connector: USB series B connector
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