Cfw300 Frequency Inverter; Ethernet - WEG Drive Scan Manual

5.4 CFW300 FREQUENCY INVERTER

5.4.1 RS-485
To connect the CFW300 to the WCD-ED300 via the RS-485 communication interface using the Modbus-RTU
protocol, it is necessary to install on the CFW300 the accessory listed in
firmware versions are v1.0 and above.
Refer to the CFW300 RS-485 Serial Communication guide, which can be obtained from the download center at
www.weg.net, for additional information.
It is important to note that there is no Ethernet communication support for the CFW300.
Table 5.8: RS-485 hardware accessory of the CFW300 compatible with the Modbus RTU protocol
Accessory
CRS485
Parameter
P0308
P0310
P0311
P0312
P0313
P0314
P0316

5.4.2 ETHERNET

To connect to the WCD-ED300 via Ethernet GbE1 communication interface using the Modbus TCP protocol, it is
necessary to install on the CFW300 the accessory CETH listed in
WEG item Parameters
14742132 Table ??
Table 5.9: Parameters related to the RS-485 communication accessories
Description
Serial address
Serial baud rate
Serial interface byte configuration
Serial protocol
Action for communication error
Serial watchdog
Serial interface status
CONNECTING A DEVICE TO THE DRIVE SCAN
Table 5.8. The supported CFW300
A signal pin (-) B signal pin (+)
25 26
Values range
1 a 247
0 = 9600 bps
1 = 19200 bps
2 = 38400 bps
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
2 = Modbus RTU
0 = Inactive
1 = Ramp stop
2 = General disable
3 = Go to local
4 = Go to local and holds command and reference
5 = Fault cause
0,0 a 999,0 s
0 = Inactive
1 = Active
2 = Watchdog error
Table 5.10.
Low Voltage Devices | 5-11
GND signal pin
5
27