Instruction Manual
LIUDPP000_eng-00 AUTEC
36
The Inaller mu avoid that a power supply positive or negative pole is
connected to the outputs.
If a Receiving Unit's output is connected to a direct current inductive load (by
way of example: solenoid valves, relays), it is advisable to connect a
freewheeling diode in anti-parallel with the driven load, to reduce the effects
of demagnetizing currents.
A 12 or 24 V voltage mu always be applied to the power supply input of
solid ate outputs.
Common wire related to diodes of solid ate outputs mu be connected with
the common of all the Machine's freewheeling diodes. If that is not possible,
connect it to the Receiving Unit's power supply negative.
Pay special attention to the currents flowing in the STOP and SAFETY outputs:
they shall not exceed the maximum permitted values (see chapter "Technical
Data" in "Part D" of the Inruction Manual) .
Wiring of STOP outputs is crucial to define the safety level for the STOP
function (see the Inallation Manual).
Wiring of SAFETY outputs is crucial to define the safety level for the UMFS
protection function (see the Inallation Manual).
Single-insulation wiring cables shall be placed inside the Receiving Unit, in
such a way that they do not jeopardize the insulation among the circuits.
The Inaller is in any case responsible for carrying out wiring in such a way
as to ensure the safety level required according to the risk analysis; in
particular, the connection of power supply's positive or negative pole to the
STOP outputs mu be avoided.
In compliance with article 9.2.7.4 of IEC Standard 60204-1 and of article 9.2.7.5
of IEC 60204-32, as far as "Take & Release" Radio Remote Controls are
concerned, one or more signals (lamps or horns) mu be inalled; dedicated
outputs on the Receiving Unit mu be used for that purpose. Such signalling
devices indicate which Transmitting Unit is controlling the Receiving Unit.
Since the "Take & Release" Radio Remote Control consis of two Transmitting
Units an one Receiving Unit, the Inaller mu carefully assess the risks
generated by the presence of multiple Units, and adopt the necessary risk
protection measures.