Mitsubishi Electric FR-F800 Series Instruction Manual page 65

 Communication
Terminal
Type
symbol
—
TXD+
TXD-
RXD+
RXD-
GND
(SG)
—
2.6.2 Control logic (sink/source) change
Switch the control logic of input signals as necessary.
To change the control logic, change the jumper connector position on the control circuit board.
Connect the jumper connector to the connector pin of the desired control logic.
The control logic of input signals is initially set to the sink logic (SINK) for the type FM inverter.
The control logic of input signals is initially set to the source logic (SOURCE) for the type CA inverter.
(The output signals may be used in either the sink or source logic independently of the jumper connector position.)
NOTE
• Make sure that the jumper connector is installed correctly.
• Never change the control logic while power is ON.
64
2. INSTALLATION AND WIRING
2.6 Control circuit
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Terminal name
RS-485 communication can be made through the PU connector (for connection
on a 1:1 basis only).
Conforming standard: EIA-485 (RS-485)
PU connector
Transmission format: Multidrop link
Transmission speed: 4800 to 115200 bps
Wiring length: 500 m
Inverter transmission
RS-485 communication can be made through the RS-485 terminals.
terminal
Conforming standard: EIA-485 (RS-485)
Inverter reception
Transmission format: Multidrop link
terminal
Transmission speed: 300 to 115200 bps
Overall length: 500 m
Earthing (grounding)
A connector (receptacle). Plug a USB memory
USB A connector device into this connector to copy parameter
settings or use the trace function.
Mini B connector (receptacle). By connecting
the inverter to a personal computer via this
USB B connector connector, FR Configurator2 installed on the
computer can be used for setting the inverter, or
monitoring or testing the inverter operation.
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Terminal function description
Jumper connector
SINK
For sink logic
Interface: conforms to USB
1.1 (USB 2.0 full-speed
compatible)
Transmission speed: 12
Mbps
SOURCE
Refer
to page
495
497
78
78