Siemens SIMOTRAS 6SG7050 Operating Instructions Manual page 343

01.04
Fault
Cause as a function of fault value
No.
(r047.001, r949.001 or r949.009 with acknowledged error)
F069 MLFB data are faulty
(active in all operating states)
Possible causes of fault
•
Excessive EMC-related interference
(e.g. due to unprotected contactors, unscreened cables, loose screen connections)
•
A7009 backplane wiring assembly is defective
Fault value:
1 MLFB code number (r070) = MLFB code number (r070)
is illegal
2 MLFB data checksum error
3 Works number checksum error
4 Number of words of MLFB data is incorrect
10.1.2.11 Communication errors with supplementary boards
F070 SCB1: Serious initialization error
(active in all operating states)
SCB1 and SCI cannot power up correctly (see diagnostic parameter n697 for details)
Fault value:
12 No connection to slave 1
22 No connection to slave 2
F073 SCB1: Current below 4mA minimum value at analog input1 of slave 1
(active in all operating states)
The cause of the fault may be a cable break
F074 SCB1: Current below 4mA minimum value at analog input2 of slave 1
(active in all operating states)
The cause of the fault may be a cable break
F075 SCB1: Current below 4mA minimum value at analog input3 of slave 1
(active in all operating states)
The cause of the fault may be a cable break
F076 SCB1: Current below 4mA minimum value at analog input1 of slave 2
(active in all operating states)
The cause of the fault may be a cable break
F077 SCB1: Current below 4mA minimum value at analog input2 of slave 2
(active in all operating states)
The cause of the fault may be a cable break
F078 SCB1: Current below 4mA minimum value at analog input3 of slave 2
(active in all operating states)
The cause of the fault may be a cable break
F079 SCB1: Telegram failure
(active in all operating states)
Check function of SCB1 (activity LEDs) and connection to SCI slaves (fiber optics)
F080 Error in initialization of a CB/TB board
Possible causes for fault values 1 and 6:
•
CB/TB board is defective
•
CB/TB board is not correctly inserted
•
CB/TB board is taking too long to run up (e.g. due to very complex TB board configuration)
Fault value:
1 The "Heartbeat counter" of the CB/TB has not started to
count within 20 s
2 The product version of the installed CT/TB board is not
compatible with the SIMOTRAS HD converter
SIEMENS AG 6SG7000-0BA76
SIMOTRAS HD Operating Instructions
Description
Further information (r047.002 to r047.016)
r047 Index 002 to 016:
i002 Incorrect MLFB code number
-
-
-
r047 Index 002 to 016:
i015 Code number of board:
st
1 TB or 1
nd
2 2 CB
i002 Code number of slot containing incompatible board:
2 Slot D
3 Slot E
4 Slot F
5 Slot G
6 CB when configuration includes TB
Faults / alarms
CB
10-13