March 2021
Page 116 of 143
59812-K007 Rev 17
Business Confidential
If the Modbus addresses are incorrect set them to the correct values, see section 2.10.1
7.
Observe the number of Control Units failing to communicate with the Remote Display Unit.
If the system has multiple Control Units fitted with some units communicating correctly replace
the Control Unit PCB in the non-communicating Control Units, see section 6.1.1.
If the system has multiple Control Units with communication failure indicated on all units
replace the Remote Display Unit, see section 6.2.1.
For systems with one Control Unit connected to a Remote Display Unit it is not possible to
determine which unit should be replaced. If a spare Control Unit PCB or Remote Display Unit is
available these can be swapped with the existing units to determine which to replace.
If spares are not available, it may be necessary to obtain replacements for both the Control Unit
PCB and Remote Display Unit.
5.2.15
Remote Display Unit remains on the initial screen.
At power up the Remote Display Unit will initially display the Graviner splash screen, see Figure 79 while
the operational software is configured. A failure of the software will cause the power up sequence to
freeze and the display to remain showing the Graviner splash screen.
In this case:
1.
Open the Plastic flap at the front of the Remote Display Unit
2.
To the right of the USB socket is the RDU reset button.
Figure 179
Remote Display Reset
3.
Using a small probe or opened paper clip push the reset button
If the Remote Display Unit operates correctly no further action is required.
If the display remains showing the Graviner splash screen the Remote Display Unit should be
replaced.
5.2.16
Remote Display Unit displays a software exception message.
A software failure in Remote Display Unit operating system may cause an exception message to be
displayed on the screen and the software to halt.
Содержание Graviner Mk7
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