Danfoss VLT FC 100 Series Manual page 75

FC 100/ 200/ 300 DeviceNet
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.
1
2
3
4
5
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.
Termi- Colour Name
nal
V- Black GND
CAN_L Blue CAN
LOW
Drain (bare) Screen
CAN_H White CAN
HIGH
V+ Red +24 V
MG.33.D3.02 - VLT ® is a registered Danfoss trademark
8. Troubleshooting
8
75