Description
TER 7551 Evo series multiple position limit switch is suitable to be used as a low resolution absolute encoder, designed to control the movement of overhead travelling cranes, hoists and complex machine tools. The choice of materials and technical solutions adopted enable use in harsh operating conditions.
FEATURES OF THE 7551 Evo Mulitple Position Limit Switch:
- Designed to guarantee excellent performance in the most challenging operating conditions.
- Rods without mechanical interlock suitable for multiple revolutions.
- Binary coding in 16 (standard) or 32 binary positions every 90°.
- 4 fixing holes.
- 4 (standard) or 5 clean contacts, suitable to return the information received in binary digital form, ready to be read by a PLC or by a dedicated control unit.
- Position resetting through a hardware signal.
- 1 contacts that can be used as a diagnostic line for error detection.
- The detected position is maintained even after an ON and OFF cycle.
- Mechanical life of switches: 1 million operations.
- Operation frequency: 3600 operations/hour max.
- IP protection degree: 7551 Evo is classified IP66 with specific cable clamp M20.
- Extreme temperature resistance: -25°C to +70°C.
- It features die-cast aluminium alloy enclosure, with bushings made of sinterised material and head made of zama to resist any violent impact, chemical aggression and rust and reduce the need for routine maintenance operation on the head.
- All materials and components used are wear resistant and guarantee protection of the unit against water and dust.
Products belonging to TER ATEX series are suitable for hazardous, potentially explosive areas. Hazardous areas are places where, under certain conditions, explosive atmosphere may form. An explosive atmosphere is a mixture of air and gases, vapours, fumes or combustible dust, whose combustion spreads rapidly (explosion) after ignition at atmospheric pressure. Users are responsible for carrying out a classification of hazardous areas, as set out in European Directive 1999/92/EC. International standards IEC 61241-10 provide criteria for classification of hazardous areas depending on their chemical nature, physical characteristics and quantity of substances used, as well as on the frequency and length of time when an explosive mixture may occur.
TER’s aim is to simplify the control of the machines equipped with its devices, designing reliable, ergonomic and intuitive safety products, capable of predicting the demands of the market and becoming the industry benchmark.
At the basis of this company mission is the will to establish a connection between market and company, by giving an increasingly central role to the sales department, seen as a continuous relationship between TER and its customers.
