Angle Limit Switch

Angle Limit Switch

The ANGLE LIMIT SWITCH is a safety-critical rope angle monitoring sensor designed to enhance the operational safety of overhead cranes and lifting equipment. Equipped with two independent relay outputs, the system continuously monitors the rope angle on two axes and prevents the crane from performing load lifting operations when the rope angle exceeds the preset and adjustable limit values.
By restricting lifting actions beyond the safe angle range, the ANGLE LIMIT SWITCH effectively reduces the risk of unsafe lifting conditions, load instability, and excessive mechanical stress on crane components. This proactive safety mechanism helps prevent accidents, equipment damage, and operational failures caused by improper load angles.
The adjustable angle limit settings allow flexibility to suit different crane configurations and application requirements, ensuring precise and reliable protection during operation. The ANGLE LIMIT SWITCH significantly improves crane safety, enhances operational control, and supports compliance with safety standards, making it an essential safety solution for maintaining safe, stable, and efficient crane operations.

⚡️Key Features & Benefits
  • Wireless data transmission between sensor and indicator.
  • 2 axis angle measurement
  • 2 axis digital angle indicator
  • 2 relay outputs – 10A, 230VAC, Adjustable relay
  • Angle limit control with adjustable cut off values
  • Thanks to its ergonomic design, it can be mounted on the rope together with the rope type load cell
  • With the offset button, any angle value can be set as the starting angle
📝 Technical Specifications
Parameter Specification
Supply Voltage (Indicator) 90-265 VAC
Supply Voltage (Sensor) 5VDC
Power Used (max) 1.5 WATT
Main Body Type ABS
Operating Temperature -20 to +60 °C
Storage Temperature -30 to +60°C
Dimension (L x W x H) – Indicator 187 x 186 x 82 mm
Dimension (L x W x H) – Sensor 64 x 58 x 36 mm
Protection Class IP 65
Weight (Sensor/Indicator) 300 grm / 1 Kg
Display (Indicator) 1.3 inch, 128 x 64 pixel OLED Display
Relays (Indicator) 10A, 230VAC, Adjustable cutoff

 

Installation Instructions

  • Step 1: Mount the angle sensor device on the fixed end of wire rope of the crane.
  • Step 2: Connect the +5V & GND cable of the angle sensor to the +5V & GND terminals of the angle limit indicator.
  • Step 3: Connect the relay wires in series to the lifting motion contactor.
  • Step 4: Connect the power supply to the indicator.
  • Step 5: On stable angle of the wire rope, press the CAL button to set zero value of the angles.

 

Setting Relay Cutoff Points

  1. Press the INC & SCROLL buttons simultaneously.
  2. Press the SCROLL button to scroll between relay 1 & 2.
  3. Press the INC button to modify the relay cut off value.
  4. Press the SET button to save the cutoff value set.

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