Danfoss VLT DeviceNet MCA 104, Руководство по установке

Страница: 15 / 18

State Bi-colour LED Status
No
Power/Not
on-line Off The option has not completed “Duplicate
MAC ID” test yet or may not be powered.
On-line, not
connected Green The option is on-line, but not allocated
to a master.
On-line and
connected Green The DeviceNet option is on-line and
connected to a master.
Connection
time-out Red One or more I/O connections are in time-
out state.
Critical link
failure Red
Table 4.2 LED: Network Status (NS)
4.2.2 No Communication with the
Frequency Converter
When there is no communication with the frequency
converter, proceed with the following checks:
1. Check that cabling is correct.
Check that the cables are connected to the
correct terminals as shown in
Illustration 3.8 .
2. Check that the bus connection is terminated at
both ends.
If not, terminate the bus connection with
termination resistors at the initial and final nodes.
Troubleshooting Installation Guide
MG33D502 Danfoss A/S © Rev. 03/2015 All rights reserved. 13
4 4