AB Quality GuardPLC 1600 Handleiding voor installatie-instructies - Pagina 13

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When the following occurs, inputs are set to 0, a fault code is generated, and the
FAULT LED is on.
• short-circuit between two parallel connections
• reversal of two connections
• earth fault on one of the lines (only with earthed reference pole)
• line break or opening of the contacts (e.g., when one of the E-stop off
switches is pressed in the example above), the FAULT LED is on and the
fault code is generated.
IMPORTANT
Safety-Related Digital Outputs
The controller has 8 digital outputs (DO1 to DO8) whose status is indicated via
LEDs.
An output is in a safe state when it is de-energized. When a fault occurs, all outputs
are switched off.
Outputs 1 to 3 and 5 to 7 can have a load of 0.5A at an ambient temperature of
60°C (140°F). Outputs 4 and 8 can each have a load of 1A or up to 2A at an
ambient temperature of 50°C (122°F).
With an overload, one or all of the outputs are turned off. When the overload is
eliminated, the outputs are activated again according to the specified value.
Although the external line of an output is not monitored, a short-circuit will be
indicated.
For information on how to configure inputs and outputs for line
control, see the GuardPLC™ System User Manual, publication
number 1753-UM001.
GuardPLC™ 1600 Controllers
Publication 1753-IN001B-EN-P - March 2004
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