6 - DRR244 -
User manual
Introduction
The process controller DRR244 is specifically conceived for application on control panels with DIN rail
mounting. It stands out for the bright display which ensures optimal visibility and increased level of
information for the operator beside a scrolling help function.
DRR244 relies on Pixsys flagship programming mode by NFC/RFID technology with dedicated App
MyPixsys for Android devices (same already used for Pixsys Blue Line controllers, signal converters and
STR indicators) not requiring wirings and power supply, allowing quick set-up/updates on site.
The outputs can be selected as command/multiple alarm modes/analogue retransmission. Serial
communication RS485 is avaiable with Modbus RTU/Slave protocol. Useful power supply with
extended range 24 to 230VAC / VDC with galvanic insulation.
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
This product is UL listed as open type process control equipment.
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.
Danger!
Loose screws may occasionally result in fire.
For screw terminals tighten screws to tightening torque of 0,51 Nm.
Warning!
A malfunction in the Digital Controller may occasionally make control operations
impossible or prevent alarm outputs, resulting in property damage. To maintain safety
in the event of malfunction of the Digital Controller, take appropriate safety measures,
such as installing a monitoring device on a separate line.
Warning!
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