REF Module Functions

Topics
	Module Properties Functions
	Standard Operation Functions
	BIT Functions
	Watchdog Timer Functions
	Reset Functions
	Module Power Reset Functions
	Raw Register Access Functions

Detailed Description

NAI’s AC Reference smart function modules are used to provide an AC signal source for synchro, resolver LVDT and RVDT devices. All synchro, resolver, LVDT, and RVDT measurement and simulation smart function modules use transformers whose main primary-to-secondary coupling is varied by physically changing (or, in simulation, commanding) the relative orientation of the two windings. For operation, the primary winding of these transformers is excited by an alternating current, and electromagnetic induction causes current to flow in the secondary winding. Windings are fixed at certain characteristic electrical angles to each other on the stator. NAI offers three smart function modules that provide an AC signal source when a secondary reference source other than the optional on-board reference module is required. The modules are programmable for full range voltage outputs from 2 to 115 VAC, and frequency from 47 Hz to 10 kHz.