OCEM AUGIER energy DIAM3100 Series, Установка и обслуживание

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DIAM3100©2012 AUGIER SA.
IV-49
IV.3.2 FAULT DIAGNOSIS

See paragraph I.5.3 for a description of the following protections.
IV.3.2.1 LV power fault:
Symptom Fault Action
The CCR has stopped
The message:
“
ALARM : Bad supply
”
is displayed
LV power fault Check the voltage level of the LV
power supply
Check parameter settings in the
“
Configuration
” menu
IV.3.2.2
“Open Circuit” fault:
Symptom Fault Action
The CCR has stopped
The message:
“
ALARM: I << Open Cir .
”
is displayed
Lighting loop open Measure the continuity of the loop
(on the transformer primaries and
secondaries)
Output current < 1.0A for more than
500 ms Measure the output current value
Large load increase on the loop
caused by circuit switching
Fibre optic cables disconnected or
faulty Check the state of the fibre optic
cables between the regulation board
and the thyristor control boards
Measuring board to motherboard link
faulty Check state of the ribbon cable
between
measuring board and
motherboard
Thyristor trigger-gates faulty Measure the state of the thyristors
Protection detection level setting on
motherboard Check setting of the level in the
menu “
Alarms and warnings
” then
“
Open circuit
”
Thyristors faulty in open circuit Measure the state of the thyristors