Overview
The SICK ZLM1-C1121S03S10 is a specialized logic module for ZoneControlâ„¢ Zero Pressure Accumulation (ZPA) systems used in accumulation conveyor applications. This unit integrates photoelectric sensing and pneumatic valve control to manage independent zone activation and deactivation on conveyor lines, enabling smooth product flow without pressure buildup. The module supports single accumulation logic with A-to-D configuration and includes a compatible 7027751 solenoid valve, providing a complete control solution for warehouse, logistics, and manufacturing environments.
Key Features
- ZoneControlâ„¢ ZPA logic module for single-zone accumulation control
- Integrated pneumatic valve output (Air-to-Drive, normally closed)
- 24 VDC operating voltage with 60 mA output current
- 200 Hz response frequency for real-time zone sensing
- IP40 enclosure rating suitable for industrial environments
- Plastic ABS housing with integrated mounting
- Daisy-chain compatible design for multi-zone installations
- Response time: 23 ms open, 21 ms close for solenoid valve
Technical Specifications
- Part Number: ZLM1-C1121S03S10
- Supply Voltage: 24 VDC
- Output Current: 60 mA maximum
- Response Frequency: 200 Hz
- Operating Pressure: 0 to 4.5 bar
- Solenoid Valve Coil Rating: 24 V DC, 1 W
- Compressed Air Connection: 3/8″ diameter main line, 1/4″ control line
- Valve Response Time (Solenoid): 10 ms partially open, 23 ms fully open, 21 ms close
- Operating Temperature: –10 °C to +55 °C
- Storage Temperature: –40 °C to +75 °C
- Enclosure Rating: IP40 / NEMA 1
- Housing Material: Plastic ABS
- Dimension (W × H × D): 30 mm × 110 mm × 70 mm
- Weight: Approximately 1.0 lb
- Protection Class: III
Typical Applications
- Accumulation conveyor zone control in distribution centers
- Logistics and warehouse automation systems
- Single-zone accumulation with independent upstream/downstream control
- Product staging in warehousing and manufacturing
- Zero-pressure accumulation on gravity or powered conveyors
- Integrated with photoelectric sensors for zone occupancy detection
- Integration with pneumatic actuation systems requiring discrete logic control
Compatibility & Replacements
Compatible With
- SICK ZoneControlâ„¢ ZPA sensor family (WTR1, WLR2100, and similar photoelectric sensors)
- Standard 24 VDC industrial control systems
- Pneumatic solenoid valve systems rated 0–4.5 bar
- Daisy-chain wired accumulation conveyor installations
- M12 connector photoelectric sensors in ZoneControlâ„¢ configuration
- Standard industrial PLC and automation controller inputs
Replaces / Drop-In Replacement For
- Previous ZLM1 series logic modules with equivalent C1121S configuration
- Other single-zone ZPA controllers requiring 24 VDC operation and pneumatic output
- Note: Verify exact pinout and pneumatic connection compatibility before replacement
Works With
- SICK ZoneControlâ„¢ ecosystem sensors and interfaces
- Pneumatic valve control circuits (Air-to-Drive solenoid actuation)
- Standard industrial 24 VDC power supplies
- M12 connector daisy-chain wiring networks
- ZoneControlâ„¢ Interface Modules (ZIM) for multi-zone coordination
- ZoneControlâ„¢ Power Supplies for system integration
