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Low Voltage Directive
The power supply of the GuardPLC controller must meet Council Directive
73/23/EEC Low Voltage, by applying the requirements of EN 61131-2
Programmable Controllers, Part 2 - Equipment Requirements and Tests, as well as
either of the following:
• EN 60950 - SELV (Safety Extra Low Voltage)
• EN 60204 - PELV (Protective Extra Low Voltage)
General Safety
Open-style devices must be provided with environmental and safety protection by
proper mounting in enclosures designed for specific application conditions. See
NEMA standards publication 250 and IEC publication 60529, as applicable, for
explanations of the degrees of protection provided by different types of enclosures.
Mounting
IMPORTANT
The GuardPLC 1600 cannot be panel-mounted. Mount the GuardPLC 1600
controller to a DIN rail by following the four steps below.
1. Hook the top slot over the DIN rail.
2. Insert a flathead screwdriver into the
gap between the housing and the latch
and pull the latch downward.
3. Hold the latch down as you push the
housing back onto the DIN rail.
For effective cooling:
• Mount the controller horizontally.
• Provide a gap of at least 100 mm (3.94 in.) above and below
the controller.
• Select a location where air flows freely or use an additional
fan.
• Do not mount the controller over a heating device.
GuardPLC™ 1600 Controllers
(3)
(2)
Publication 1753-IN001B-EN-P - March 2004
5
(1) Top Slot
DIN Rail
Latch
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