TR-HT2xx LED Controller - User Manual
7.2.2
Internal trigger
You can set the TR-HT to generate its own trigger pulses. The period of
these pulses can be set in increments of 100μs from approximately 10μs
to 5000ms.
You can set the TR-HT to produce a single pulse for testing purpose. This
is set by either a
TR1
command (see
Section 12.3.3, General commands
)
or using the webpage Trigger button (see
).
7.3
SafeSense
The SafeSense feature of the TR-HT operates automatically. After setting
the rating for the light, the TR-HT senses the light on connection for its type
and characteristics. The unit does not need to sense the light again unless
the light has changed or the TR-HT has been power-cycled.
For further information on this feature, see the application note, APP936 –
SafeSense Technology, available from
7.4
SafePower
The TR-HT’s SafePower needs no intervention from the user for its
operation. The advantages of SafePower are:
Heat dissipation in the controller is very low
The load voltage can be higher than the supply voltage
High continuous currents can be output with a reduced need for
additional heatsinking.
For further information on this feature, see the application note, APP966 –
SafePower Technology, available from
7.5
Flags
You can set flags on the TR-HT controller to alter its operation. They can
be set from the unit’s front panel, its webpage or through the
RE
command (see
Section 12.3.3, General commands
). The following
configuration flags are available:
E Flag
– Enables or disables fault detection. Error checking is enabled as
the default setting.
P Flag
– Sets the trigger input active high or active low. The default setting
is active high. Refer to
for a detailed description of
the settings.
S Flag
– Sets the SafeSense feature of the TR-HT. When cleared it
removes the SafeSense light detection and the controller assumes a light
is connected. The default setting is for SafeSense to be enabled. This flag
cannot be used when the light is set according to its voltage rating. The S
flag cannot be changed from the TR-HT’s front panel.
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