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Instructions:
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For PCR-110 the total current via terminal 5 of the common relay
connection must not exceed 10 A.
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Pay attention to the contact loading of the relay (8A/5A resistive
load, 2A/1A inductive load). As a general rule, contactors are
recommended.
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The maximum tested sensor cable length is 50 m, with a minimum
cross section of 2 x 0.75 mm2. Solder the extension cable to the
sensor cable to prevent contact resistances.
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It is advisable to use shielded sensor extension cables. All shields
must be routed at the side of the controller to one earth/protec-
tive potential. The extension cable shield must not be connected on
the sensor side, otherwise bonding currents may occur via the
shielding.
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The controllers are designed respecting the highest degree of
immunity to interference. If the local interference level exceeds the
immunity data might get lost (AL1 in display) and the controllers
switches to the preprogrammed setting values. This is not a
mulfunction of the controller. In such cases the means to suppress
interference have to be improved (RC-elements, shielded lines).
6 Operation of the controller
Front view of controller:
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