PAT Hirschmann Cable Reel
General PAT Hirschmann Cable Reel Information
The PAT Hirschmann cable reel is a combination of two transducers in one box, fitted at the base section of the boom. It measures the length and the angle of the crane boom as it travels through its lifting motion. The cable reel drum drives a potentiometer, which is the length transducer portion of the setup, measuring the boom length as it scopes in and out. Part of the length transducer circuit is the length cable on the PAT cable reel drum, which is a two-conductor cable (screen and live). It is connected to the anti-two-block switch at the boom head and to a slip ring body inside the cable reel itself. The angle transducer is fitted in a small box filled with oil for the older versions or a new digital angle sensor in the new cable reels. A pendulum drives the axle of the angle potentiometer. The power supply voltage for both is -5.00V The output signal for the length transducer is: -0.500V up to -4.500V The output signal for the angle transducer is: -1.875V up to -3.125V
Cable Reel Features
- Telescopic lengths greater than 150 feet
- Output signals, 4 – 20 mA and CAN
- Compact construction, Simple installation
- Exact measurement of boom length
- Signal transmission of additional sensors via the length sensor cable
- Up to 15 signal channels of the slip ring
- Redundant options available on request
Cable Reel Sample Breakdown
LWG vs LG Type Cable Reels
The PAT Hirschmann Cable Reel comes in two types, LWG adn LG. Length AND angle sensors comprise the LWG series and can be used on all kinds of equipment where a precise capture of the data relating to the length and angle of the telescopic boom is necessary.
Length sensing only comprise the LG range and are available and used exclusively for length data capture.
Sample PAT Hirschmann Cable Reel Parts Schematic
Sample PAT Hirschmann Cable Reel Parts List
