Connection Of Stand-Alone Option Unit - Mitsubishi Electric FR-D720-0.2K-G Instruction Manual

(2) Output signal
Terminal
Type Terminal Name
Symbol
Relay output (fault
A, B, C
output)
RUN Drive unit running
Open collector
SE
output common
FM For meter
(3) Communication
Terminal
Type Terminal Name
Symbol
— PU connector
NOTE
The terminals S1, S2, SC, and SO are for manufacturer setting. Do not connect anything to these. Doing so may cause a
drive unit failure.
Do not remove the shortening wires across the terminals S1 and SC and the terminals S2 and SC. Removing either
shortening wire disables the drive unit operation.
Description
1 changeover contact output indicates that the drive unit
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 drive unit rotation speed is equal to
or higher than the 1r/min.
Switched High during stop or DC injection brake operation.
(Low is when the open collector output transistor is ON
(conducts). High is when the transistor is OFF (does not
conduct).)
Common terminal of terminal RUN.
Select one e.g. rotation speed from monitor items.
Not output during drive unit reset. Not output during drive
unit reset.
The output signal is proportional to the magnitude of the
corresponding monitoring item.
Use Pr. 55 and Pr. 56 to set full-scale values for monitoring
the rotation speed and the output current. (Refer to page
139.)
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
Control circuit specifications
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)
—
Permissible load current
1mA
1440 pulses/s at 3000r/min
Description
Refer to
Page
123
123
—
134
Refer to
Page
181
2
19