Mitsubishi Electric FR-E720-600 Instruction Manual page 33

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
AM Analog signal output
∗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.
(3) Communication
Terminal
Type
Symbol
— PU connector
— USB connector
22
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.
∗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. ∗1
Common terminal of terminal RUN and FU.
Select one e.g. output
frequency from monitor
items.
*2
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 (1640.42feet)
The FR Configurator can be operated by connecting the inverter to the
personnel 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)
—
Output signal 0 to
10VDC
Permissible load current
1mA
(load impedance 10kΩ or
more)
Resolution 8 bit
Reference
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