16
Wiring
(2) Output signal
(3) Communication
(4) Safety stop signal
NOTE
Set Pr. 267 and a voltage/current input switch correctly, then input analog signals in accordance with the settings.
Applying a voltage with voltage/current input switch in "I" position (current input is selected) or a current with switch in
"V" position (voltage input is selected) could cause component damage of the inverter or analog circuit of output
devices.
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 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)
Contact capacity:230VAC
0.3A
(power factor =0.4)
30VDC 0.3A
Instruction
Manual
(applied)
Open collector
RUN Inverter running
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.
(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)
Instruction
Manual
(applied)
SE
Open collector
output common
Common terminal of terminal RUN. — —
Pulse
FM For meter
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.
Output item:
Output frequency (initial
setting)
Permissible load current
1mA
1440 pulses/s at 60Hz
Instruction
Manual
(applied)
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
24
Terminal
Symbol
Terminal Name Description Rated Specifications
Reference
Page
S1
Safety stop input
(Channel 1)
Terminals S1 and S2 are for safety stop input signals used
with the safety relay module. Terminals S1 and S2 are used
simultaneously (dual channel). Inverter output is shut off by
shortening/opening across terminals S1 and SC and across
S2 and SC. In the initial status, terminals S1 and S2 are
shorted with terminal SC by shortening wire.
Remove the shortening wire and connect the safety relay
module when using the safety stop function.
Input resistance: 4.7kΩ
Current: 4 to 6 mA
(In case of shorted to
SC)
Voltage: 21 to 26 V
(In case of open from
SC)
22
S2
Safety stop input
(Channel 2)
SO
Safety monitor output
(open collector output)
The signal indicates the status of safety stop input. Low
indicates safe state, and High indicates drive enabled or fault
detected.
(Low is when the open collector output transistor is ON
(conducts). High is when the transistor is OFF (does not
conduct).)
If High is output when both of terminals S1 and S2 are open,
refer to the Safety stop function instruction manual (BCN-A211508-
000) for the cause and countermeasure.
Load: 24VDC/0.1A max.
Voltage drop: 3.4V max.
(In case of 'ON' state)
SC
Safety stop input
terminal common
Common terminal for terminals S1, S2 and SO. Connected to
terminal SD inside of the inverter.
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