Mitsubishi FR-A846-00023, Инструкция по эксплуатации

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Control circuit
INSTALLATION AND WIRING
35
2
 Communication
 Safety stop signal
For the safety stop function, refer to page 43 .
Ty
p
e
Terminal
symbol
Terminal name Terminal function description
RS-485
— PU connector
With the PU connector, communication can be made through RS-485. (For
connection on a 1:1 basis only)
Conforming standard: EIA-485 (RS-485)
Transmission format: Multidrop link
Communication speed: 4800 to 115200 bps
Wiring length: 500 m
RS-485 te
rminals
TXD+
Inverter transmission terminal
The RS-485 terminals enables the communication by RS-485.
Conforming standard: EIA-485 (RS-485)
Transmission format: Multidrop link
Communication speed: 300 to 115200 bps
Overall length: 500 m
TXD-
RXD+
Inverter reception terminal
RXD-
GND
(SG)
Earthing (grounding)
USB
—
USB A connector
A connector (receptacle)
A USB memory device enables parameter copies
and the trace function.
Interface: Conforms to USB1.1
(USB2.0 full-speed compatible)
Transmission speed: 12 Mbps
(Refer to
page 49 .)
USB B connector
Mini B connector (receptacle)
Connected to a personal computer via USB to
enable setting, monitoring, test operations of the
inverter by FR Configurator 2.
Terminal
symbol
Terminal name Terminal function description Rated specification
S1 Safety stop input (Channel 1)
The terminals S1 and S2 are used for the safety stop input
signal for the safety relay module. The terminals S1 and S2 are
used at the same time (dual channel).
Inverter output is shutoff by shortening/opening between
terminals S1 and SIC, or between S2 and SIC.
In the initial status, terminals S1 and S2 are shorted with the
terminal PC by shorting wires. The terminal SIC is shorted with
the terminal SD. Remove the shorting wires and connect the
safety relay module when using the safety stop function.
Input resistance 4.7 k

Input current 4 to 6
mADC (with 24 VDC
input)
S2 Safety stop input (Channel 2)
SIC
Safety stop input terminal
common
Common terminal for terminals S1 and S2. —
SO
Safety monitor output (open
collector output)
Indicates the safety stop input signal status.
Switched to LOW when the status is other than the internal
safety circuit failure. Switched to HIGH during the internal safety
circuit failure status.
(LOW is when the open collector output transistor is ON
(conducted). HIGH is when the transistor is OFF (not
conducted).)
Refer to the Safety stop function instruction manual (BCN-
A23228-001) when the signal is switched to HIGH while both
terminals S1 and S2 are open. (Please contact your sales
representative for the manual.)
Permissible load
24 VDC
(27 VDC at maximum)
0.1 A
(The voltage drop is 3.4
V at maximum while the
signal is ON.)
SOC
Safety monitor output terminal
common
Common terminal for terminal SO. —