Advanced lluminated Pulsar 710 Instrukcja Operatora Pobierz pdf (Strona 11)

a d v a n c e d i l l u m i n a t i o n . c o m

P u l s a r 7 1 0 M a n u a l

Section: 4.0 Operation

The following section details the procedures for operation of the Pulsar

710Controlleranddenesitsvariousoperatingmodes.

4.1 Denition of Terms

The following terms are used within this manual and, more generally, in

relation to machine vision illumination.

4.1.1 Constant Mode: The Pulsar 710 produces a constant output. The

current is determined by the control settings. The timing settings are not

available in this mode.

4.1.2 Duty Cycle: The ratio of the time the light head is “on” (pulse

width, Pw) to the time it is “off” (period, Tp). Calculated as (Pw / Tp) x

100. The result is expressed in percent. The Signatech II feature of the

Pulsar 710 allows the Pulsar 710 to limit the maximum duty cycle based

on the characteristics of the driven light head.

4.1.3 Gated DC Mode: The Pulsar 710 produces a constant output

that is “Gated” by the trigger signal. “Gating” refers to the ability of the

Pulsar 710’s output to be turned on and off in constant mode by any one

of the trigger inputs. If the selected trigger is set to falling edge the output

is enabled by a low signal on the trigger, otherwise a high signal enables

the output. The timing settings are not available in this mode.

4.1.4 Latency: The time between the receipt of a trigger signal and

initiation of the output drive pulse. The latency is the sum of the rise-

times and propagation delays within the trigger processing circuitry. This

time is purposely kept to a minimum. Latency is not adjustable and should

not be confused with trigger delay described in section 4.1.14. See section

7.0Specicationsforlatencyspecs.

4.1.5 LED and Lighthead Characteristics: Many factors contribute

totheoperationalparametersofanLEDlighthead.TooptimizePulsar

710/light head operation, these characteristics are stored as part of the

information provided to the Pulsar 710 by the Signatech II circuit within

the light head. Some of the variables that affect how the light head can be

driven are outlined below.

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Advanced lluminated Pulsar 710 Instrukcja Operatora Strona 11