Danfoss VLT 5000 FLUX Operating Instructions Manual page 34

If the encoder has no inverted outputs, the encoder
cable can only have a length of max 3 meter. The
encoder input must then be terminated as shown.
Electrical installation
Regarding programming of the digital and analog
inputs and outputs, see parameter group 300.
Bus connection RS 485
The serial bus connection is connected to terminals
68/69 of the frequency converter (signals P and N) in
34
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VLT 5000 FLUX
The encoder surveillance circuit must be switched
off in parameter 350 [0].
If the encoder has no zero pulse, and the encoder
monitor is enabled (parameter 350), the inputs
77 and 78 must be terminated.
accordance with the RS 485 (2-wire) norm. Signal
P is the positive potential (TX+,RX+), while signal
N is the negative potential (TX-,RX-).
MG.55.A6.02 - VLT is a registered Danfoss trademark