Product description General technical specifications Technical specifications of the microswitches business partner - Conformity to Community Directives: 2006/95/CE 2006/42/CE - Conformity to Standards: EN 60204-1 EN 60947-1 EN60947-5-1 EN 60529 - Storage ambient temperature: -40°C/+80°C - Operational ambient temperature: -40°C/+80°C - Protection degree: IP 67 - Insulation category: Class II - Maximum rotation speed: 800 rev./min. - Cable entry: cable clamp M20 (M20+M16) - Markings and homologations: C - Utilisation category: AC 15 125 V 2 A AC 15 230 V 1 A DC 13 60 V / 0.5 A - Rated thermal current: 6 A - Rated insulation voltage: 250 V~ - Mechanical life: 1.5x10 6 operations - Terminal referencing: according to EN 50013 - Connections: screw-type terminals with self-lifting pads - Markings and homologations: C Fox Yaw and pitch control for wind turbines The rotary limit switch Fox is used to control the position of the nacelle or the pitch angle of the blades of a wind turbine. The motor that controls the rotation of a wind turbine on the yaw axis (or of the blade around its longitudinal axis) transfers the movement to the limit switch. A rotary encoder reads the rotation of the shaft, and its pulses are sent to a PLC which controls the position of the nacelle or of the blade. The movement of the shaft is also transferred, through a gearmotor, to a series of cam switches: the appropriate setting of the actuating point of the cams can signal up to four critical positions of the movement of the nacelle or of the blade. Fox features transmission and gear driving shafts made of high resistance stainless steel, worm gear transmission shaft rotating on ball bearings, self-lubricating techno-polymer gears and driving bushes, techno-polymer base and cover. All techno- polymers used for the enclosure are wear resistant and protect the equipment against water and dust. Fox is available either for horizontal mounting (worm gear shaft parallel to the fixing base) or for vertical mounting (worm gear shaft perpendicular to the fixing base). Revolution ratios result from the combination of different secondary output steps. Fox can be fitted with different combinations of actuators and motion detectors: sets of cams and microswitches (max. 4), potentiometers or encoders (max. 2), encoder for set of cams and microswitches (max. 1). Furthermore, there is a special seat for the integrated assembly of a boxed electronic card (Fox HF) used for the worm gear shaft movement detection and for managing all other actuators and motion detectors. It is possible to fit together sets of cams and microswitches, potentiometers, encoder and electronic integrated card, thus creating a safety device featuring redundancy and diversity. The limit switch can be customized with labels and colors.
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TER Tecno Elettrica Ravasi srl · 2018-06-20 · TER Tecno Elettrica Ravasi srl Via Garibaldi 29/31 - 23885 Calco (LC) - Italy Registered Office - via San Vigilio 2 - 23887 Olgiate
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Product description
General technicalspecifications
Technical specifications of themicroswitches
b u s i n e s s p a r t n e r
- Conformity to Community Directives: 2006/95/CE 2006/42/CE
- Conformity to Standards: EN 60204-1 EN 60947-1 EN60947-5-1 EN 60529
- Storage ambient temperature: -40°C/+80°C- Operational ambient temperature: -40°C/+80°C- Protection degree: IP 67- Insulation category: Class II- Maximum rotation speed: 800 rev./min.- Cable entry: cable clamp M20 (M20+M16)- Markings and homologations: C
- Utilisation category: AC 15 125 V 2 AAC 15 230 V 1 A DC 13 60 V / 0.5 A
- Rated thermal current: 6 A- Rated insulation voltage: 250 V~- Mechanical life: 1.5x106 operations- Terminal referencing: according to EN 50013- Connections: screw-type terminals with self-lifting pads- Markings and homologations: C
FoxYaw and pitch controlfor wind turbines
The rotary limit switch Fox is used to control the position of the nacelle or the pitch angle of the blades of a wind turbine.The motor that controls the rotation of a wind turbine on the yaw axis (or of the blade around its longitudinal axis) transfers the movement to the limit switch. A rotary encoder reads the rotation of the shaft, and its pulses are sent to a PLC which controls the position of the nacelle or of the blade. The movement of the shaft is also transferred, through a gearmotor, to a series of cam switches: the appropriate setting of the actuating point of the cams can signal up to four critical positions of the movement of the nacelle or of the blade.Fox features transmission and gear driving shafts made of high resistance stainless steel, worm gear transmission shaft rotating on ball bearings, self-lubricating techno-polymer gears and driving bushes, techno-polymer base and cover. All techno-polymers used for the enclosure are wear resistant and protect the equipment against water and dust.
Fox is available either for horizontal mounting (worm gear shaft parallel to the fixing base) or for vertical mounting (worm gear shaft perpendicular to the fixing base).Revolution ratios result from the combination of different secondary output steps. Fox can be fitted with different combinations of actuators and motion detectors: sets of cams and microswitches (max. 4), potentiometers or encoders (max. 2), encoder for set of cams and microswitches (max. 1). Furthermore, there is a special seat for the integrated assembly of a boxed electronic card (Fox HF) used for the worm gear shaft movement detection and for managing all other actuators and motion detectors. It is possible to fit together sets of cams and microswitches, potentiometers, encoder and electronic integrated card, thus creating a safety device featuring redundancy and diversity. The limit switch can be customized with labels and colors.
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TER Tecno Elettrica Ravasi srl Via Garibaldi 29/31 - 23885 Calco (LC) - ItalyRegistered Office - via San Vigilio 2 - 23887 Olgiate Molgora (LC) - Italy Tel. +39 0399911011 - Fax +39 0399910445 - E-mail: [email protected]
www.terworld.com
Revolution ratios
Overall dimensions
Repetitivity and hysteresis
Possible assemblies
With flangeWith set of cams, Fox HF and Yankee HF encoders
Lateral gear wheel Z 35Lateral gear wheel Z 37Lateral gear wheel Z 36Lateral gear wheel Z 38Lateral gear wheel Z 40Lateral gear wheel Z 42Lateral gear wheel Z 44Lateral gear wheel Z 46Lateral gear wheel Z 48Lateral gear wheel Z 50Lateral gear wheel Z 52Lateral gear wheel Z 54Lateral gear wheel Z 56Lateral gear wheel Z 58Lateral gear wheel Z 60Lateral gear wheel Z 62Lateral gear wheel Z 64Lateral gear wheel Z 66Lateral gear wheel Z 68Lateral gear wheel Z 70Lateral gear wheel Z 72