TR-HT2xx LED Controller - User Manual
7.6
Fault detection
The TR-HT can detect a range of errors when connected to a light. The
displayed errors are shown below with their reasons.
Error
display
Reason
Internal power dissipation is too high. Output turned off.
Output current to lighting is too low. The light is open
circuit or there is not enough supply voltage for the
requested output current.
Output voltage is too low. The TR-HL detects that the
output is short-circuited.
The voltage required for the lighting has increased too
much. Check for ageing of the light or a failed LED.
The voltage required for the lighting has decreased too
much. Check for ageing of the light or a failed LED.
Note:
When the output current falls below 100mA, some fault detection is
disabled. Press
SEL
to cancel the error and allow the TR-HT to sense the
light again.
7.7
Factory settings
You can clear the TR-HT configuration to return it to its factory settings:
The lighting rating is cleared and the light does not illuminate.
Clear the configuration from the front panel by pressing and holding
SEL
for about 5 seconds, until
Select Opt
and
Chan 1
is displayed. You can
also clear the configuration by using the
CL
command (see
).
You can start the TR-HT from a powered down state (cold boot) with the
front panel keypad locked; this process removes the keypad lock.
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