March 2021
Page 99 of 143
59812-K007 Rev 17
Business Confidential
If the fault indication moves to the new position of the cable, the cable has failed and should be
replaced.
7.
Open the Control Unit lid
8.
Swap the detector harness connecting to the PCB with an adjacent harness. There is a push bar at
the side of the connector to release it, taking care not to damage the connection wires or the
connector pins/connections.
9.
Reset the Control Unit.
10.
Perform a Backup Alarm Test via the Test Menu, see 2.11.3
If the fault indication remains at the original position the Control Unit PCB has failed and should
be replaced.
If the fault indication moves to the new position of the cable, the cable has failed and should be
replaced.
5.2.1.2
All Detectors in fault
If all the detectors connected to the Control Unit are shown with a Backup Alarm Test fault the
Control Unit PCB has failed and should be replaced.
5.2.2
Communications Fault
Under normal operating conditions the Control Unit polls each of the detectors one at a time with the
detector responding each time. If when the Control Unit polls a detector it fails to get a response or the
response is corrupted the Control Unit will indicate a communications fault, see section 5.1.1.
To identify which detector is at fault, from the Engine Overview Screen, Figure 148, select the required
engine.
Figure 150
Engine Screen Detector Fault
Select the faulty detector to access the Detector Status Screen.
Figure 151
Detector Status Screen Communications Fault
Identify the fault being indicated, in this case a communications fault.
Содержание Graviner Mk7
Страница 26: ...March 2021 Page 15 of 143 59812 K007 Rev 17 Business Confidential Figure 10 Detector Head Installation ...
Страница 42: ...March 2021 Page 31 of 143 59812 K007 Rev 17 Business Confidential Figure 29 Wiring Drawing ...
Страница 129: ...March 2021 Page 118 of 143 59812 K007 Rev 17 Business Confidential 6 6 1 CONTROL UNIT Figure 182 Control Unit Spares ...
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