Operating instructions

8.2.2. 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 red and green cables are con-

nected to the correct terminals as shown in

the diagram below. If the cables are crossed,

no communication is possible.

62 = RxD/TxD-P red cable

63 = RxD/TxD-N green cable

Check 2: Is the correct GSD file installed?

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

Profibus SW ver-

sion

(par. 15-61)

GSD File

1.x da01040A.GSD

2.x da02040A.GSD

Check 3: 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.

VLT

Profibus 8. Troubleshooting

MG.33.C4.02 - VLT

is a registered Danfoss trademark