Cause : MLFB data are faulty (active in all operating states)

Possible fault causes

♦ Excessive EMC-related interference is present (e.g. due to unprotected contactors, unscreened cables, loose shield connections)

♦ A7009 backplane wiring assembly is defective

Fault value:                r047 Index 002 to 016:

1. MLFB code number (r070) = MLFB code number (r070) is illegal - i002 Incorrect MLFB code number

2. MLFB data checksum error

3. Works number checksum error

4. Number of words of MLFB data is incorrect