Operating instructions

8.1.2. No Communication with the Drive

If there is no communication with the drive,

proceed with the following checks:

Check 1: Is the cabling correct?

Check that the cables are connected to the

correct terminals as shown in the diagram.

Pin no.

Termi-

nal

Colour Name

1 V- Black GND

2 CAN_L Blue CAN

LOW

3 Drain (bare) Screen

4 CAN_H White CAN

HIGH

5 V+ Red +24 V

Check 2: Is the 24V network voltage applied?

Check 3: Is the correct EDS file installed?

Download the correct EDS file from http://www.danfoss.com/drives.

Check 4: Is the bus connection terminated at both ends?

If not, terminate the bus connection with termination resistors at the initial and final nodes, as

shown in the following diagram. Termination is performed between terminal 2 (CAN_L) and 4

(CAN_H) with a resistor: 121 Ohm, 1% metal film, ¼ Watt.

FC 100/ 200/ 300 DeviceNet 8. Troubleshooting

MG.33.D3.02 - VLT

is a registered Danfoss trademark