541998

Name: Festo 541998 Operator unit FED-40
Brand: Festo

Operator unit FED-40

The Festo 541998 industrial component features a monochrome backlit LCD display with a 120x32 pixel resolution supporting 4 by 20 characters, alongside 512 kByte of user memory and 1,024 alarms. It operates within a DC voltage range of 18 to 30 V at a nominal 24 V drawing 0.25 A, and provides an IP65 front and IP20 back protection class across dimensions of 149 mm length, 53 mm depth, and 109 mm height. This unit is equipped with 4 function keys, 7 system keys, 5 user LEDs, and 4 system LEDs while accommodating a maximum front panel thickness of 5 mm and storage temperatures from -20 to 70 °C. Submit the exact part number, quantity, and application requirements to receive a formal quote.

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Manufacturer: Festo
Part number: 541998
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Technical Specifications

Depth: 53 mm
Height: 109 mm
Length: 149 mm
Max. front panel thickness: 5 mm
User memory: 512 kByte
Number of user LEDs: 5
Number of function keys: 4
Number of system keys: 7
Alarms: 1,024
Number of system LEDs: 4
Display: Monochrome LCD | With background illumination
Display size: 4 x 20 characters
Operating voltage range DC: 18 ... 30 V
Display resolution: 120x32 Pixel
Nominal operating voltage DC: 24 V
Current consumption at nominal operating voltage: 0,25 A
CE symbol (see declaration of conformity): according to EU-EMV guideline
Storage temperature: -20 ... 70 °C
Relative air humidity: 5 - 85 % | non-condensing
Protection class: IP65 front, IP20 back
Ambient temperature: 0 ... 50 °C
Authorization: c UL us - Listed (OL) | RCM Mark
Product weight: 1,000 g
PC interface: RS232 | Sub-D | 15-pin | Plug
Programming interface: 9,6 kBd
PLC interface: RS232 | Sub-D | 15-pin | Plug
Mounting type: Front panel installation
Materials note: Conforms to RoHS
Programming software: FED Designer 6.06 or higher
Explosion protection certification outside the EU: NEC 500 Class I, Div. 2

Engineering context

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Our sourcing response is prepared against Festo 541998. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.