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Application Guide | iC2-Micro Frequency Converters
Table 22: Cable Specifications
Cable
Impedance [Ω]
Cable length [m (ft)]
Connecting the Drive to the RS485 Network
6.1.2
1.
Connect signal wires to terminal 68 (P+) and terminal 69 (N-) on the main control board of the drive.
61 68 69
Figure 52: Network Connection
2.
Connect the cable shield to the cable clamps.
To reduce noise between conductors, use shielded, twisted-pair cables.
Hardware Setup
6.1.3
To terminate the RS485 bus, use the terminator switch on the main control board of the drive. The factory setting for the switch is OFF.
Figure 53: Terminator Switch Factory Setting
1
RS485 termination switch (ON=RS485 terminated,
OFF=Open)
Parameter Settings for RS485 Communication
6.1.4
Two communication protocols are internal to the frequency converter.
Danfoss FC
l
74
| Danfoss A/S © 2024.03
1
2
Shielded twisted pair (STP)
120
Maximum 1200 (3937) (including drop lines).
Maximum 500 (1640) station-to-station.
NOTICE
2
RS485 terminals
AB413939445838en-000301 / 130R1254
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Multi inputs control motor speeds setting Example, 1Float is on level means motor off 2nd number float on means motor 25 hz running 3rd number float on means motor 50hz running This format control settings needed