Danfoss DLX 4.6 Guia do Utilizador descarregar pdf (Página 33)

User Guide DLX Series L00410623-1 33

- Ethernet:

Plug the Ethernet cable directly in its port.

- CAN:

The conductors must be connected to the same labeled terminals at

both ends: i.e. H connected to H, L to L etc. Recommended tightening

torque is 0.2 Nm

- RS-485:

The conductors must be connected to the same labeled terminals at

both ends: i.e. A connected to A, B to B etc. Recommended tightening

torque is 0.2 Nm.

6. Tighten the cable gland firmly.

NOTICE

Cable shielding: It is recommended to mount the cable shielding for both the

CAN and RS-485 with the GND at the receivers end.

If any kind of datalogger is connected to an inverter, then only mount the shield at

the datalogger.

If the system consists of two or more inverters, then only mount the shield at the

“Master”

CAN and RS-485 connection pinout

4.3.6.2. Jumper Position for Termination Resistance

With several inverters connected, the jumper located behind the CAN / RS-485 terminal

activates the termination resistance when the pins are terminated (short-circuited). This

minimizes signal reflections in the cables and helps to avoid interference.

• Single inverter: The two pins can be terminated or disconnected).

• Several inverters connected: The master-follower configuration requires terminated

pins on the first inverter and on the last inverter in the linked series. The pins must be

disconnected on the inverters between the first and last inverters in the linked series.

• To disconnect the pins, the jumper must be pulled up and placed only on one of the

pins.

• Be careful not to bend the pins when removing or installing the jumper!

COMGND

CAN

A(-)

B(+)

GND

A(-)

B(+)

GND

RS-485

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Danfoss DLX 4.6 Guia do Utilizador Página 33