Application Guide | iC2-Micro Frequency Converters
l Modbus RTU
Functions can be programmed remotely using the protocol software and RS485 connection, or in parameter group 10.
Table 23: RS485 Communication Parameter Settings
Parameter Function
P 10.1.1 Protocol Select the application protocol to run for the RS485 interface.
P 10.1.2 Address Set the node address.
NOTICE
The address range depends on the protocol selected in P 10.1.1 Protocol.
P 10.1.3 Baud Rate Set the baud rate.
NOTICE
The default baud rate depends on the protocol selected in P 10.1.1 Protocol.
P 10.1.4 Parity/Stop Bits Set the parity and number of stop bits.
NOTICE
The default selection depends on the protocol selected in P 10.1.1 Protocol.
P 10.1.6 Minimum Response Delay Specify a minimum delay time between receiving a request and sending a response.
This function is for overcoming modem turnaround delays.
P 10.1.5 Maximum Response Delay Specify a maximum delay time between sending a request and receiving a response.
6.1.5 EMC Precautions
To achieve interference-free operation of the RS485 network, Danfoss recommends the following EMC precautions.
NOTICE
Observe relevant national and local regulations, for example regarding protective earth connection. Failure to ground the cables
properly can result in communication degradation and equipment damage. To avoid coupling of high-frequency noise between
the cables, keep the RS485 communication cable away from motor and brake resistor cables. Normally, a distance of 200 mm
(8 in) is sufficient. Maintain the greatest possible distance between the cables, especially where cables run in parallel over long
distances. When crossing is unavoidable, the RS485 cable must cross motor and brake resistor cables at an angle of 90°.
Danfoss A/S © 2024.03 AB413939445838en-000301 / 130R1254 | 75
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