Mitsubishi Electric FR-E720-0.1 K Instruction Manual page 35

Control circuit specifications
(2) Output signal
Terminal
Type Terminal Name
Symbol
Relay output (fault
A, B, C
output)
RUN Inverter running
FU Frequency detection
Open collector output
SE
common
FM For meter
(3) Communication
Terminal
Type
Symbol
— PU connector
— USB connector
24
1 changeover contact output indicates that the inverter
protective function has activated and the output stopped.
Fault: discontinuity across B-C (continuity across A-C),
Normal: continuity across B-C (discontinuity across A-C)
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 inverter output frequency is equal to
or higher than the preset detected frequency and high when
less than the preset detected frequency.*
Common terminal of terminal RUN and FU.
Select one e.g. output
frequency from monitor items.
Not output during inverter
reset. Not output during
inverter reset.
The output signal is
proportional to the magnitude
of the corresponding
monitoring item.
Terminal Name
With the PU connector, communication can be made through RS-485.
Conforming standard: EIA-485 (RS-485)
Transmission format: Multidrop link
Communication speed: 4800 to 38400bps
Overall length: 500m
The FR Configurator can be operated by connecting the inverter to the
personal computer through USB.
Interface: conforms to USB1.1
Transmission speed: 12Mbps
Connector: USB mini B connector (receptacle mini B type)
Description
Output item:
Output frequency (initial
setting)
Description
Reference
Rated Specifications
Contact capacity:230VAC
0.3A
(power factor =0.4)
30VDC 0.3A
Permissible load 24VDC
(maximum 27VDC) 0.1A
(a voltage drop is 3.4V
maximum when the signal
is ON)
* Low indicates that the open
collector output transistor is
ON (conducts).
High indicates that the
transistor is OFF (does not
conduct).
—
Permissible load current
1mA
1440 pulses/s at 60Hz
Reference
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