ABB CL-LMR.C18DC2 Programmable Relay 1SVR440721R0300

Brand: ABB

Product Series: ABB CL Series Logic Relays (Programmable Relays)

Model: CL-LMR.C18DC2 (Order Code / Part Number: 1SVR440721R0300)

Product Type: Expandable Programmable Logic Relay with Display and Keypad

ABB CL-LMR.C18DC2 Programmable Relay 1SVR440721R0300

Technical Parameters:

Control Supply Voltage: Nominal 24 V DC auxiliary operating voltage.

Input Configuration: 12 digital inputs in total, of which 4 can be configured as 0-10 V DC analog inputs.

Output Configuration: 6 digital relay outputs (NO contact configuration) for direct load switching.

Operator Interface: Integrated LCD display module and front-panel keypad for local programming, parameter editing, and status monitoring.

Programming Capacity: Logic circuit capacity of up to 128 rungs (3 contacts in series plus 1 coil per rung).

Integrated Function Blocks: Equipped with 16 editable text display messages, 8 weekly and 8 yearly timers, 16 multifunction timing relays, 4 operating hours counters, 16 analog comparators, 2 high-speed counters, and 2 frequency counters.

System Expandability: Modular expansion capability via CL-LINK to connect local or remote I/O expansion modules.

Real-Time Clock: Onboard real-time clock (RTC) with automatic daylight savings conversion for time-dependent control tasks.

Mounting & Profile: Designed for standard 35 mm DIN-rail mounting with dimensions measuring 107.5 mm (W) x 90 mm (H) x 58 mm (D).

Industrial Sectors:

Building Automation and Smart HVAC Systems, Small OEM Machinery, Water and Wastewater Utilities, Agricultural and Greenhouse Automation, Light Industrial Assembly, and Commercial Lighting Control.

Application Scenarios:

1. Building Lighting & HVAC Timing Control: Installed in distribution boards to manage automated lighting schedules, ventilation fan cycling, and temperature-triggered HVAC loops using internal weekly/yearly timers.

2. Standalone Small Machine Control: Deployed on compact industrial machines—such as conveyors, packaging wrappers, and automated doors—to process digital sensor inputs and drive relay actuators.

3. Pump Station & Water Level Monitoring: Integrated into small water pumping cabinets to compare analog level sensor signals, track pump operating hours, and sequence dual-pump alternation.

4. Local Panel Diagnostics & Parameter Display: Positioned on control panel fronts where operators can modify timer setpoints and monitor alarm messages directly via the built-in screen and keypad.