3.3.2 LEDs
The 2 bicolor LEDs in the VLT
®
PROFIBUS DP MCA 101
indicate the status of PROFIBUS communication.
The LED marked NS (FCD 302: NS2) indicates the network
status, that is, the cyclic communication to the PROFIBUS
master. When this light is a constant green, data exchange
between the master and the frequency converter is active.
The LED marked MS (FCD 302: BUS MS) indicates the
module status, that is, acyclic DP-V1 communication from
either a PROFIBUS master class 1 (PLC) or a master class 2
(MCT 10 Set-up Software, FDT tool). When this light is a
constant green, DP-V1 communication from master classes
1 and 2 is active.
For details of the full range of communications status
indicated by the LEDs, refer to chapter 8 Troubleshooting.
Illustration 3.11 FCD 302 LED Panel
Conguration
VLT
®
PROFIBUS DP MCA 101
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