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PP500/520 series LED lighting controllers
Go
to Gardasoft Vision
 |
Model |
PP500 |
PP520 |
PP500F |
PP520F |
| Interface |
Push button |
Ethernet
or push button |
Push
button |
Ethernet
or push button |
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The PP500/520 series provides control of LED lighting for machine vision
applications and include the power regulation, intensity control, timing
and triggering functions required for machine vision systems.
The benefits of SafeSense® technolgy
To obtain the very best fom LED lighting, in terms of brightness, stability
and control, the lights should be driven from a current source,
not a nominal voltage supply. Driving the LEDs with a constant current
source allows for very precise overdriving and Gardasoft's patented SafeSense®
technology ensures that the pulse width and duty cycle are kept within
safe working limits while protecting the lights from damage. SafeSense®
regulates the pulse-width timing and duty cycle, depending on how high
the light is being overdriven with the end result of much more light being
gained.
Continuous monitoring for fault detection
The PP500/520 monitors the output voltage and current continuously for
sudden and long term changes. When an unexpected change occurs, a fault
is alerted and the output is disabled. The controllers can detect lighting
that fails open or short circuit, lighting which is overheating or degrading
over time, and single LED failures, depending on conditions.
Operation
Three modes of operation are provided separately for each channel and
each can be individually configured to output continuously or pulsed based
on an external trigger signal or internal timer. The ‘F’ version
controller will allow pulse width control down to 1µS resolution.
Selected mode allows switching of the light based upon the state of an
external trigger.
The PP520 models can be quickly configured using free, downloadable software
or by by accessing the controller via internet browser and receiving full
access to all of the parameters. The PP520 models also have a simple command
set that allowing easy communication with a third-party software package.
All settings are stored in non-volatile memory and these settings will
be retained these even when the Ethernet connection is disconnected.
The advantage of Ethernet technology
With the introduciton og GigE cameras, the machine vision market is moving
towards Ethernet connectivity. The advantage of Ethernet is that it is
fast, long distance, standardised worldwide and implementation is inexpensive.
| Specifications | PP500 |
PP520 |
PP500F |
PP520F |
| User Interface | Push button |
Ethernet or push button |
Push button |
Ethernet or push button |
| Output channels | Two independent constant
current outputs with SafeSense |
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| Output current | From 0mA to 10A in
steps of 2.5mA.
Up to 2A per channel continuous or 10A pulsed |
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| Trigger inputs | 2 opto-isolated digital
inputs. Require 3V to 24V |
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| Pulse width timing | From 20us to 999 milliseconds in steps of 20us. Timing repeatability 0.1us |
From 1us to 99 milliseconds
in steps of 1us. Timing repeatability 0.1us |
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| Delay from trigger to pulse | From 20us to 999 milliseconds in steps of 20us. Timing repeatability 1us |
From 20us to 999 milliseconds in steps of 20us. Timing repeatability 1us |
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| Timing repeatability | Delay + Pulse up to
10 ms: 0.1us for pulse width and 3us for delay. Otherwise 100us |
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| Output voltage | 0V to 47V |
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| Supply voltage | From 20us to 999 milliseconds
in steps of 20us. Timing repeatability 1us |
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| Dimensions | 118mm long by 76mm
wide by 27mm high (excluding DIN fixing) |
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| Weight | 240g (excluding DIN
fixing) |
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| Mounting | DIN rail or panel
mounting |
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PP500 series data sheet|
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