WEG Drive Scan, Manual

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5
CONNECTING A DEVICE TO THE DRIVE SCAN
5.2 CFW11 FREQUENCY INVERTER
5.2.1 RS-485
To connect the CFW11 to the WCD-ED300 via the RS-485 communication interface using the Modbus-RTU
protocol, it is necessary to install on the CFW11 one of the accessories listed in
Table 5.1 , observing the minimum
allowed firmware version of the CFW11.
WEG’s download center, which can be accessed at www.weg.net , is a channel that provides a wide range of doc-
uments about WEG equipment and accessories, as well as installation guides. For additional information about the
CFW11 RS-485 communication “cfw11 rs485” and access the “CFW11 - RS-232/RS-485 Serial Communication
Guide”. For information about PLC11-01 and PLC11-02 settings and installation, search the download center for
the keyword “PLC11”.
It is very important to activate the termination resistors at the ends of the RS-485 network.
Table 5.1: RS-485 hardware accessories of the CFW11 compatible with Modbus RTU protocol
Accessory
WEG
Item
Firmware
CFW11
Parameters Pin
Signal
RS485-01 10051957
≥
V3.14
Table 5.2
1
Negative RxD/TxD
2 Positive RxD/TxD
CAN/RS485-01 10051960
3
GND (Isolated 0V)
4 Shield
PLC11-01 11008911
Table 5.3
XC31:8
Negative RxD/TxD
PLC11-02 11094251 XC31:9
Negative RxD/TxD
RS-485-05 11008161 Table 5.2
1 +5V
5 GND
8 RxD/TxD
9 RxD/TxD (inverted)
Table 5.2: Parameters related to the RS485-01, CAN/RS485-01 and RS485-05 accessories
Parâmetro Descrição Faixa de valores
P0308 Serial address 1 a 247
P0310 Serial baud rate 0 = 9600 bps
1 = 19200 bps
2 = 38400 bps
3 = 57600 bps
P0311 Serial interface byte configuration 0 = 8 bits, no parity, 1 stop bit
1 = 8 bits, even parity, 1 stop bit
2 = 8 bits, odd parity, 1 stop bit
3 = 8 bits, no parity, 2 stop bits
4 = 8 bits, even parity, 2 stop bits
5 = 8 bits, odd parity, 2 stop bits
P0312 Serial protocol 2 = Modbus RTU
P0313 Action for communication error 0 = Inactive
1 = Ramp stop
2 = General disable
3 = Go to LOCAL
4 = LOCAL holds enabled
5 = Fault cause
P0314 Serial Watchdog 0,0 a 999,0 s
Low Voltage Devices | 5-2