Operating instructions

8. Troubleshooting

8.1. Troubleshooting

8.1.1. LED Status

First, check the LEDs.

The DeviceNet control card contains two bi-colour (green/red) LEDs to indicate the state of the

device and the network respectively.

The upper LED indicates module status (MS).

The lower LED indicates network status (NS).

State Bi-colour LED Status

No Power Off There is no power applied to the option

Device opera-

tional

Green

The DeviceNet option is operating in nor-

mal condition.

Standby

Green

The DeviceNet option needs commission-

ing due to configuration missing, incom-

plete or incorrect.

Minor fault

Red

Recoverable fault.

Unrecoverable

fault

Red

Unrecoverable fault, may need replacing.

Self test

Green

The DeviceNet option is in Self-test

mode.

Red

Table 8.1: LED: Module Status (MS)

FC 100/ 200/ 300 DeviceNet 8. Troubleshooting

MG.33.D3.02 - VLT

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