TR-HT2xx LED Controller - User Manual
7 General description
Three modes of operation are provided for the light output:
Continuous – the output is constant, but variable between 0% and 100%
in steps of 0.1%.
Pulse (strobe) – the output is pulsed once per trigger. The delay from
trigger to pulse, the pulse duration and the brightness can all be set.
Switched – the trigger input can be used to switch the output current on
and off.
The set-up is non-volatile, so the TR-HT resumes the same operation after
a power cycle.
7.1 Pulse and duty cycle limits
The output is off by default. Upon being triggered, the TR-HT pulses to the
output after a delay. The delay, pulse width, re-trigger delay, and pulse
intensity are all configurable (see Section 12, Configuration commands).
In pulse and switched modes, the brightness can be set up to 1000% of its
rating for short periods and low duty cycles. To avoid damage to the
lighting, the TR-HT limits the duty cycle by ignoring triggers that are too
soon after the previous trigger.
7.1.1 TR-HT controller inbuilt self-protection
In order to prevent internal damage to the controller, the following limits
apply under all conditions.
Pulse output current
Maximum
pulse width
Maximum
duty cycle
< 5A 5 seconds 100%
≥ 5A and < 10A 30ms 30%
≥ 10A and < 15A 10ms 20%
≥ 15A and <25A 2ms 10%
≥ 25A and < 40A 1ms 5%
≥ 40A and <= 50A 0.5ms 5%
7.1.2 Protection of connected lights
If the TR-HT detects any triniti chip, then the TR-HT applies the operating
limits held within the triniti chip for the connected output channel. If no
triniti chip is detected, then the following limits apply:
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