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User's Manual

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TES-63 Source
User manual – version 06/2021
Page 41/46
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microcontroller inside the rack.
Switch off and on the rack.
E010
Command does not exist.
Check the syntax.
E011
Impossible to access to shared
folder.
Switch off and on the rack.
E012
Short circuit detected for beam
and/or focus power supplies.
All setpoints and states are set
0. High voltage security mode is
activated, setpoints and state
commands are ignored. Error
code E012 is returned.
To quit the high voltage
security mode, use set
rack_state 0 then set
rack_state 1. For more details,
see 7. HV security.
7.9 Details about the HV security
CAUTION
The ‘HV security’ functionality cannot be considered as a safety function: it is intended
for hardware protection only.
The microcontroller can detect if a high voltage power supply is experiencing a short circuit. To do so,
the measured currents « ibeam » and « ifocus » are compared the current limits « imaxbeam » and
« imaxfocus » set by the user. If the measured currents are equal or greater than the current limits,
all setpoints and states are set to 0. Therefore, HF power generator and high voltage power supplies
are switched off.
The rack answer will be « E012 » for any command received: the high voltage security mode is
activated.
To escape the HV security mode, use set rack_state 0 then set rack_state 1. Then it is necessary to
set again the current limits.
The HV security mode can be triggered by too low current limits. Make sure the limits
are compatibles with functioning point of the source.
The HV security mode can also be triggered by electrical discharge inside the source. It does not
mean the source has been damaged.
However, when restarting the source, if the HV security mode is again triggered by an electrical
discharge, it is necessary to inspect the source to check for insulators damages. Please refer to the
troubleshooting section.