F06851 — Infeed: Distributed infeed line monitoring tripped

F06851 means that the line monitoring of the distributed line infeed has tripped. The distributed infeed watches the connected line supply with the monitoring function that is parameterized in p5540 ... p5559; when that function responds, the infeed raises this fault and the drive coasts down. The message value carries the alarm value, which corresponds to the line monitoring status word r5542, so it shows which line monitoring status led to the trip.

• The line monitoring of the distributed line infeed — the function parameterized in p5540 ... p5559 — has tripped.

1. Check the line supply of the distributed line infeed.
2. Check the parameterization of the line monitoring in p5540 ... p5559: the configuration of the monitoring is set in p5540, and p5559 contains the line monitoring LFRT frequency values.

• The message value is the alarm value that the drive stores in r2124 — interpret it hexadecimal.
• The alarm value corresponds to the status word r5542, the line monitoring status word.

• r2124 — alarm value of this fault; read it hexadecimal to decode the message value of F06851.
• r5542 — line monitoring status word; the alarm value of F06851 corresponds to this status word.
• p5540 — line monitoring configuration; here the line monitoring of the distributed infeed is set up, so it is the first place to look when the parameterization is in question.
• p5559 — line monitoring LFRT frequency values; part of the p5540 ... p5559 range whose parameterization the remedy has you check.

The fault switches the infeed off and the drive coasts down; the fault must be acknowledged before the drive will start again. The acknowledgement can be made immediately, for example with the acknowledge function of the operator panel or the commissioning tool; the message table additionally specifies POWER ON. Restart the drive only after the line supply and the line monitoring parameterization (p5540 ... p5559) have been checked and the fault has been acknowledged.