GE PQMII-T20-C-A Analog output module

A multi-turn resolver consists of two resolvers coupled to each other through a gear train. 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 position in each revolution. Thus the combination of the two resolver signals gives the absolute machine position. The gear train uses an anti-backlash gear to eliminate backlash errors.

Autotech resolvers are designed to operate reliably

 under extremely hostile environments, such as; continuous mechanical shock, vibration, extreme temperature and humidity changes, oil mist, coolant and solvents. Still ordinary precautions to prevent damage to bearings of any rotation device should be followed to prolong their life. 1. It is recommended that the Autotech encoder mounting bracket (MMB-EN359-010) be used, wherever possible, for size 40 resolvers. The servo-mount resolvers may be mounted either with traditional servo-clamps or through the four threaded mounting holes on the face of the resolver. The flange-mount resolvers are mounted using four mounting holes in the square flange.

If the resolver is to be axially shaft driven

 be sure that the shafts are aligned. Misaligned shafts can destroy resolver bearings. 3. If a pulley, coupling, or sprocket is mounted to the resolver shaft, DO NOT hammer or press on the shaft. DO NOT force fit anything on to or off of the resolver shaft. 4. If the resolver is belt-driven or chain-driven, DO NOT OVERTIGHTEN the drive belt or chain. Too much side loading (radial) can destroy the resolver bearings. Side loading is not allowed for E6R and RL101 (size 11) resolvers.

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