Privacy Policy
Logo
☰
Logo
×
Home /Overload Control Systems /Control Units /CLB
CLB
Control Units

CLB

SCM® smart crane management and overload control unit

As a digital load limiter and transmitter, CLB combines load measurement, control outputs and communication functions on the crane in a single platform. Its 2" full-colour TFT display, two independent load cell inputs, four relays and Modbus integration make it the central unit of the COTO crane safety ecosystem.

2"TFT colour display
2load cell inputs
4relay outputs
2+2analog I/O

Overview

Beyond overload protection, CLB evaluates load, rope angle (CAS), wind and drive data together: load-dependent speed stages, slack-rope protection, VFD monitoring, Anti-Sway data transfer and Anti-Grab controlled lifting. Overloads, lifting cycles and inverter data are logged for full operational traceability (BLACKBOX).

Key Features

Smart Safety & Motion Control

  • Overload protection with alarm and pre-alarm thresholds
  • Load-dependent speed: 3rd and 4th speed stages via relays below nominal load
  • Rope angle control with CAS (X/Y) against side pull
  • Wind monitoring via CWS anemometer input
  • Slack-rope protection: lowering is stopped at a defined negative load threshold
  • VFD monitoring of status, phase, current and fault codes via Modbus
  • Anti-Sway: rope angle and position data to PLC/drive via Modbus
  • Anti-Grab: linear frequency ramp for smooth load pick-up

Inputs / Outputs & Communication

  • 2 independent load cell inputs (350 Ω, 10 VDC)
  • 4 relay outputs: three changeover + one safety changeover relay with guided contacts
  • 2 digital inputs, 2+2 selectable analog inputs / outputs
  • RS485/RS232 serial ports; Modbus integration
  • Integrated RF interface for connecting multiple units (option)
  • 2" full-colour TFT display; LED relay status indicators; 5-key keypad

SCM® App Functions

  • Calibration and tare via iOS / Android app
  • Individual configuration of the four relay outputs
  • Gyroscope or anemometer input
  • Communication with frequency inverters via Modbus
  • Recording of overvoltage, overcurrent, over-temperature and inverter fault codes
  • Real-time recording of overload events and lifting cycles
  • Real-time recording of weighing results with product-type information
  • Export of records in Excel or PDF format and report printing

Main Functions

  • Connection to PC/PLC via RS485/RS232
  • Connection to a remote display via RS485/RS232
  • Up to 2 load cells in parallel via junction box
  • Connection to other units for the summing function via RS485 or RF (option on request)
  • Continuous load cell connection integrity check
  • Digital filter to reduce the effects of load oscillation
  • Theoretical calibration (via keypad) and real calibration (with sample weights)
  • Tare weight zero setting
  • Automatic zero setting at power-on
  • Gross weight zero tracking

Ordering Code

ExampleCLB-1-1-2-1-M-1-J
CLBProduct family 1Function 1Data transfer 2Relays 1Load cell inputs MCommunication 1Wireless JOptional input
  • Control unit
  • 1 – Overload
  • 2 – COLM via app
  • 3 – SCM (coming soon)
  • 0 – None
  • 1 – USB Type-C
  • 2
  • 3
  • 4
  • 1
  • 2
  • M – Modbus
  • I – 4–20 mA
  • V – 0–10 V
  • 1 – None (cable)
  • 2 – Bluetooth
  • 3 – Wi-Fi
  • J – Gyroscope
  • W – Wind sensor

Technical Specifications

Power supply and consumption24–250 VDC/VAC; 6 VA
Number of load cells • Load cell supplyup to 2 (350 Ω) • 10 VDC
Linearity< 0.01% full scale
Thermal drift< 0.002% full scale / °C
A/D converter24 bit
Measuring range±3.9 mV
Conversions per second3
Decimals • Display increments0÷4 • x1 x2 x5 x10 x20 x50
Digital filter0.25÷3 Hz
Relay outputs4 changeover relay outputs – 30 VDC / 250 VAC; 2 A
Opto-isolated digital inputs2
Serial portsRS485, RS232
Baud rate1200, 2400, 9600, 19200, 38400, 57600, 115200 bit/s
Humidity (non-condensing)85%
Storage temperature−30 °C … +60 °C
Operating temperature−20 °C … +55 °C

Certifications & Compliance

  • CE certification for European Union countries.
  • Category 2 as per EN 13849-1, PL d (comparable to SIL 2 level, EN 62061) (LCD3PL).
  • Lead (Pb) free.

Options on Request

CED-3X / CED-4X

IP54 aluminium 6-digit external display with RS232/RS485 communication. 3": 6 × 76 mm LED, 620 × 150 × 100 mm; 4": 6 × 102 mm LED, 770 × 150 × 100 mm.

CLP / CLW

IP66 pin type and wire rope type load cells, standard 4G0.22 mm² 3.5 m cable.

RF

Integrated RF interface for connecting multiple units: 2.4 GHz (128 channels), average range 100 m.

The company reserves the right to change technical data, drawings and images without prior notice.

CLB

Get Information & a Quote

Send us your questions about this product – our specialists will get back to you shortly.

More in This Category

×