38
FAP54 Installation
FAULT ON CIRCUIT: XX
BMP1: 01234567 BMP2: 01234567
----**-- *-*-----
TYPE: XXXX A = D--- B = D---
Code
Error
218
Search open loop: missing communication with the point.
Check the electrical connections.
219
Search open loop: no answer from the point and lack of voltage on line LB,
The last point which answered is located just before the section where the loop is open.
220
Search open loop: line fault (overload / short circuit) after brand new point addressing or
acquisition.
Check the electrical connections after the point.
221
Search open loop: simultaneous answer from more than one point.
Check the address assignment (there could be duplicated addresses).
6.3 APPENDIX 3: CIRCUIT FAULT BITMAPS
If a circuit fault occurs during an initialization procedure on a single circuit, the following screen will be displayed:
Where are indicated:
•
number of the circuit affected by the fault
•
bitmaps with fault codes. The bits set are represented by asterisks and indicate the faults occurred, according
to the following decoding table:
BMP1
Bit 0 - Fault on circuit A (1) isolated at terminals LA for short circuit/overload
Bit 1 - Fault on circuit B (2) isolated at terminals LB for short circuit/overload
Bit 2 - Fault on circuit A (1) isolated at the point XXX for short circuit/overload
Bit 3 - Fault on circuit B (2) isolated at the point XXX for short circuit/overload
Bit 4 - Fault: open circuit (positive cable)
Bit 5 - Fault: open circuit (negative cable)
Bit 6 - Unexpected voltage present on circuit A (1)
Bit 7 - Unexpected voltage present on circuit B (2)
BMP2
Bit 0 - Positive cable resistance too high
Bit 1 - Negative cable resistance too high
Bit 2 - Overload on circuit A (1)
Bit 3 - Overload on circuit B (2)
Bit 4 - Short-circuit on circuit A (1)
Bit 5 - Short-circuit on circuit B (2)
Bit 6 - Main voltage missing
Bit 7 - Not used
•
circuit configuration (open / loop)
•
A = D --- and B = D - - -, which indicate:
o
the address involved in the fault in case of open configuration
o
the physical position of the point involved in the fault in case of loop configuration
Содержание FAP54
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