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Mitsubishi Electric FR-E720-0.1K(SC) Instruction Manual Page 33

Fr-e700 series.
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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
Terminal Name
Symbol
PU connector
USB connector
24
Description
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.
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)
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
transistor is OFF (does not
conduct).
Output item:
Permissible load current
Output
1mA
frequency (initial
1440 pulses/s at 60Hz
setting)
Description
Reference
Page
145
145
that
the
149
154
Reference
Page
211
245

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