Lauer LCA 180 Textmonitor
The Lauer LCA 180, also identified as LD 180.004.1, is a reliable text monitor tailored for straightforward operator interaction in industrial environments. Its alphanumeric display provides clear status messages, setpoint adjustments, and diagnostic information without the complexity of a graphical panel. This unit is widely used in compact machinery, conveyor systems, and test equipment where simplicity and cost-effectiveness are key.
Technical Specifications
Display: 5.7-inch STN, 240 x 128 pixels, alphanumeric, 4 lines x 20 characters (adjustable font sizes).
Backlight: Yellow-green LED, dimmable, 50,000 hours typical.
Processor: 16-bit microcontroller, 128 KB RAM, 512 KB flash.
Interfaces: 1 x RS232 (9-pin D-sub), 1 x RS422/485 (terminal block), optional Profibus DP.
Power Supply: 24 V DC (18–30 V DC), consumption 8 W.
Operating Temperature: 0 °C to 50 °C; storage: -20 °C to 60 °C.
Humidity: 10 % to 90 % non-condensing.
Protection Rating: Front IP65, rear IP20.
Mounting: Panel mount, cutout 165 x 105 mm, depth 45 mm.
Weight: 0.8 kg.
Functional Features
The text monitor supports simple command sequences and can display up to 255 user-defined messages stored in its internal memory. It features a membrane keypad with 8 function keys and 4 navigation keys, allowing operators to navigate menus and adjust parameters easily. Communication is based on a proprietary protocol or Modbus RTU, making integration with PLCs straightforward. The unit includes a buzzer for alarm notification and an LED status indicator for power and communication.
Installation Guidelines
Mount the LCA 180 in a standard panel cutout using the supplied clips. Ensure the sealing gasket is properly positioned to maintain IP65 integrity. Connect the power supply with a fused 0.5 A line. Use a shielded serial cable and connect the shield to the earth terminal. Configure the communication settings via DIP switches on the rear panel, selecting baud rate, parity, and protocol.
Operating Conditions
This text monitor is designed for indoor industrial use with ambient temperatures between 0 and 50 °C. Avoid direct sunlight and corrosive atmospheres. The unit can withstand moderate vibration up to 0.3 g (10–150 Hz) and shock up to 10 g (11 ms). The display contrast can be adjusted using a potentiometer on the side.
Applications
Typical applications include small packaging machines, labeling equipment, batch counters, temperature controllers, and pump stations. It is also used as a local display for variable frequency drives and servo systems. The simplicity of the text interface reduces training time and operator errors.
Compliance and Certifications
The LCA 180 carries CE marking and complies with EN 61000-6-2 immunity and EN 61000-6-3 emission standards. It is RoHS compliant. The unit is also UL recognized for use in the United States and Canada.
Ordering Variants
Alternative models include versions with different keypad layouts, extended temperature range, and integral Profibus DP or CAN interface. The monitor can be supplied with custom message lists pre-programmed to suit specific machine sequences.




