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:
—
25
—