WEG Drive Scan, Руководство пользователя

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5
CONNECTING A DEVICE TO THE DRIVE SCAN
5.3 CFW100 FREQUENCY INVERTER
5.3.1 RS-485
To connect the CFW100 to the WCD-ED300 via the RS-485 communication interface using the Modbus-RTU
protocol, it is necessary to install on the CFW100 the accessory listed in
Table 5.6 . The supported CFW100
firmware versions are v1.0 and above.
Refer to the CFW100 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 CFW100.
Table 5.6: RS-485 hardware accessory of the CFW100 compatible with the Modbus RTU protocol
Accessory
WEG item Parameters
A signal pin (-) B signal pin (+) GND signal pin
CRS485 11710626 Table 5.9 6 7 8
Table 5.7: Parameters related to the RS-485 communication accessories
Parameter Description Values range
P0308 Serial address 1 a 247
P0310 Serial baud rate 0 = 9600 bps
1 = 19200 bps
2 = 38400 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 = Go to local and holds command and reference
5 = Fault cause
P0314 Serial watchdog 0,0 a 999,0 s
P0316 Serial interface status 0 = Inactive
1 = Active
2 = Watchdog error
5.3.2 POSSIBLE FORMS OF CONNECTIONS
Figure 5.6 illustrates the possible ways to connect the CFW100 to the Drive Scan.
Low Voltage Devices | 5-8