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The Geared Single-Turn Resolvers (part numbers - SAC-RL100-Gxxxx and E8R-RL101-xxxMC) are offered with built-in gear trains that can be specified in over 15 gear ratios (ranging from 2:1 to 100:1). With a gear train, the resolver makes one turn for many turns of the input shaft (A 2:1 gear ratio means the external shaft has to turn twice to turn the resolvers shaft once. A 100:1 ratio means the external shaft has to turn 100 times for the resolver shaft to turn once.). This fea-ture is especially useful in those applica-tions where the resolvers rotation is being used to indicate linear motion.
Explosion-Proof, FM-Approved
AVG Automation's series E8R resolver has FM approved, explosion-proof housing and meets the requirements as per Division 1, Class 1, Groups B, C, and D.
FM Approved Explosion-Proof Design for Safety Explosion-Proof Resolvers (E8R-RL101- xxxMC and E8R-RL210-xxxMC) are designed to prevent or control explosive situations with brute force. AVG Automation uses heavy enclosures designed to hold an explosion within the housing. Resolvers with an explo-sion- proof using can operate at normal power levels in hazardous environ-ments. Even under fault conditions, an explosion or fire may not occur because there simply isnt enough air within the sealed housing to support combustion. Should an explosion occur, the housing is strong enough to contain it.
Dual-Resolvers for Multi-Turn Application
A Dual (multi-turn) resolver (SAC-RL210-Gxxxx and E8R-RL210-xxxMC) consists of two resolvers coupled to each other through a gear train ( Standard ratios offered are either 64:1 or 128:1). One of the resolvers, called the fine resolver, is coupled to the machine shaft in such a way that it turns at the same rpm as the machine, while the other resolver, called the coarse resolver, is geared down by the gear ratio used. As the shaft of the multi-turn resolver turns with the machine movement, the coarse resolver keeps track of the number of revolutions and the fine resolver keeps track of the shaft posi-tion in each revolution. Thus, the combination of the two resolver-signals gives the absolute machine position. The gear train uses an antibacklash gear to eliminate backlash errors.
Hollow Shaft and Pancake Resolvers
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PRODUCT CATEGORY : RESOLVERS
