Fuji Electric FRENIC-MEGA, Инструкция по эксплуатации

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F codes
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Ch
ap
. 5
FUNCTION C
O
DES
„ Stop bits (y07 for port 1 and y17 for port 2)
y07 or y17 specifies the number of stop bits.
For FRENIC Loader, no setting is required since Loader
automatically sets 1 bit.
For the Modbus RTU protocol, no setting is required since
the stop bits are automatically determined associated with the
property of parity bits.
Data for y07 and y17 Stop bit(s)
0 2 bits
1 1 bit
„ No-response error detection time (y08 for port 1 and y18 for port 2)
y08 or y18 specifies the timeout period for receiving a
response from the host equipment (such as a computer or
PLC) in RS-485 communication, in order to detect network
breaks. This applies to the machinery that accesses the host
equipment at the predetermined intervals.
If the response timeout occurs, the inverter starts
communications error processing.
For the processing of communications errors, refer to y02
and y12.
Data for y08 and y18 No-response error detection
0 No detection
1 to 60 1 to 60 s
„ Response interval (y09 for port 1 and y19 for port 2) Data setting range: 0.00 to 1.00 (s)
y09 or y19 specifies the latency time after the end of receiving a query sent from the host equipment (such as a computer or
PLC) until the start of sending the response. This enables the inverter to control the response timing to match the host
equipment that is slow in processing.
T1 = Response in
α
where
α
is the processing time inside the inverter.
α
may vary depending on the processing status and the command
processed in the inverter.
For details, refer to the RS-485 Communication User's Manual.
When configuring the inverter with FRENIC Loader via the RS-485 communications link, pay sufficient attention
to the performance and configuration of the PC and protocol converter such as USB
−
RS-485 converter. Some
protocol converters monitor the communications status and switch between sending and receiving of transmission
data with a timer.
„ Protocol selection (y10 for port 1)
y10 specifies the communications protocol for port 1.
For FRENIC Loader (via the RS-485 communications
link), only y10 can be used for protocol selection. Set the
y10 data at "1."
Data for y10 Protocol
0 Modbus RTU protocol
1 FRENIC Loader protocol
2 Fuji general-purpose inverter protocol
„ Protocol selection (y20 for port 2)
y20 specifies the communications protocol for port 2.
Data for y20 Protocol
0 Modbus RTU protocol
2 Fuji general-purpose inverter protocol