DHR Series Getting Started Guide Page 53
Startup Errors
The instrument has some power on self test (POST) routines.
If the electronics box issues groups of beep codes while flashing the TA logo in time with the sounder, then
there is either a serious error which prevents the system from proceeding further, or there is a less serious
error but no display is available to notify the user. Please see “
System POST Error Codes” on page 54.
If it is a less serious error with no display available, the system should continue after 60 seconds but may
not work correctly depending on the nature of the error.
If the electronics box issues a repeated sequence of three tones, then there is an error which should be listed
on the display but there is no keypad available for the user to acknowledge the error. In this case the system
should continue after a short period but may not work correctly depending on the nature of the error.
There are 3 error screens that may be displayed:
System Issues
Module name Firmware status Module status Module POST
Firmware status can be: Not found, Unknown, Outdated, Current, Newer, Experimental
FPGA Version Issues
Module name FPGA status FPGA version
FPGA status can be: Not found, Unknown, Outdated
Power Drive Issues
Motor drive Control mode FPGA status
and/or
Gap set drive Control mode
The display and keypad modules are marked as optional for the self test and so their absence should not in
itself cause any errors.
If the display is blank (white) but cycles between bright and dim every 1 second, then there is a problem
with the display graphics file data.
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