19
2
WIRING
Control circuit specifications
(2) Output signal
(3) Communication
Type
Terminal
Symbol
Terminal Name Description Rated Specifications
Refer to
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 A-C),
Normal: continuity across B-C (discontinuity across A-C)
Contact capacity:230VAC
0.3A
(power factor =0.4)
30VDC 0.3A
106
Open collector
RUN Drive unit running
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).)
Permissible load 24VDC
(maximum 27VDC) 0.1A
(a voltage drop is 3.4V
maximum when the signal is
ON)
106
SE
Open collector
output common
Common terminal of terminal RUN. — —
Pulse
FM For meter
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 122)
Permissible load current
1mA
1440 pulses/s at 3000r/min
117
Type
Terminal
Symbol
Terminal Name Description
Refer to
Page
Communication
— 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
164
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.
