Manuale d’uso - MCM260X - 7
Introduction
Thank you for choosing a Pixsys instrument.
The MCM260X modules are a series of digital/analog expansions for PLC that implement the Modbus
RTU protocol with RS485 interface or the CANopen protocol.
There are 6 versions of the expansion module, in continuous voltage for the models MCM260X-1AD,
MCM260X-2AD, MCM260X-3AD, MCM260X-9AD, while for the models with relay outputs or analog
inputs/outputs MCM260X-4AD, MCM260X-5AD operation is required in low continuous and alternating
voltage.
1 Safety guidelines
Read carefully the safety guidelines and programming instructions contained in this manual before
connecting/using the device.
Disconnect power supply before proceeding to hardware settings or electrical wirings to avoid risk of
electric shock, fire, malfunction.
Do not install/operate the device in environments with flammable/explosive gases.
This device has been designed and conceived for industrial environments and applications that rely
on proper safety conditions in accordance with national and international regulations on labour
and personal safety. Any application that might lead to serious physical dama ge/ life risk or involve
medical life support devices should be avoided.
Device is not conceived for applications related to nuclear power plants, weapon systems, flight
control, mass transportation systems.
Only qualified personnel should be allowed to use device and/or service it and only in accordance to
technical data listed in this manual.
Do not dismantle/modify/repair any internal component.
Device must be installed and can operate only within the allowed environmental conditions.
Overheating may lead to risk of fire and can shorten the lifecycle of electronic components.
1.1 Organization of safety notices
Safety notices in this manual are organized as follows:
Safety notice Description
Danger! Disregarding these safety guidelines and notices can be life-threatening.
Warning!
Disregarding these safety guidelines and notices can result in severe injury or
substantial damage to property.
Information! This information is important for preventing errors.
1.2 Safety Precautions
Danger!
CAUTION - Risk of Fire and Electric Shock
This product is UL listed as DIN-rail mounting process control equipment. It must be
mounted in an enclosure that does not allow fire to escape externally.
Danger!
If the output relays are used past their life expectancy, contact fusing or burning may
occasionally occur.
Always consider the application conditions and use the output relays within their
rated load and electrical life expectancy. The life expectancy of output relays varies
considerably with the output load and switching conditions.
Warning!
Devices shall be supplied with limited energy according to UL 61010-1 3rd Ed, section
9.4 or LPS in conformance with UL 60950-1 or SELV in conformance with UL 60950-1
or Class 2 in compliance with UL 1310 or UL 1585.
Warning!
Loose screws may occasionally result in fire.
For screw terminals, tighten screws to tightening torque is 0.5 Nm for 5 mm Pitch
terminal blocks or 0.25 Nm for 3.81 mm Pitch terminal blocks.
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