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Control circuit specifications
(2) Output signal
(3) Communication
Type
Terminal
Symbol
Terminal Name Description Rated Specifications
Reference
Page
Relay
A, B, C
Relay output
(fault output)
1 changeover contact output indicates that the drive unit
protective function has activated and the output stopped.
Fault: discontinuity across B-C (continuity across AC),
Normal: continuity across B-C (discontinuity across A-C)
Contact capacity:230VAC
0.3A
(power factor =0.4)
30VDC 0.3A
144
Open collector
RUN Drive unit running
Switched low when the drive
unit rotation speed is equal to
or higher than the starting
rotation speed. Switched high
during stop or DC injection
brake operation.
Low indicates that the
open collector output
transistor is ON
(conducts).
High indicates that the
transistor is OFF (does
not conduct).
Permissible load 24VDC
(maximum 27VDC) 0.1A
(a voltage drop is 3.4V
maximum when the signal
is ON)
144
FU Speed detection
Switched low when the drive
unit rotation speed is equal to
or higher than the preset
detected rotation speed and
high when less than the preset
detected rotation speed.
149
SE
Open collector
output common
Common terminal of terminal RUN and FU. — —
Pulse
FM For meter
Select one e.g. rotation speed from monitor items.
Not output during drive unit reset.
The output signal is proportional to the magnitude of the
corresponding monitoring item.
Permissible load current
1mA
Output item: rotation speed
(initial setting)
1440 pulses/s at 3000r/min
155
Type
Terminal
Symbol
Terminal Name Description
Reference
Page
RS-485
— PU connector
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
201
USB
— USB connector
The USB connection with a personal computer can be established. Using FR
Configurator, setting, monitoring, and test operations of the drive unit can be
performed.
Interface: conforms to USB1.1
Transmission speed: 12Mbps
Connector: USB mini B connector (receptacle mini B type)
—