916339 Vickers
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The Vickers 916339 is an amplifier board from the Vickers Amplifier Boards series that supports resolver poles of 4, 6, and 8, and offers two resolver channels. It provides resolution options of 10, 12, 14, or 16 bit, with feedback connectors using dual DB9 male ports. The board delivers up to 131,072 counts per revolution at 16-bit, 4-pole configuration.
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Product Description:
The 916339 amplifier board is produced by Vickers and forms part of the Vickers Amplifier Boards series. Designed for motion-control applications, the board conditions resolver feedback and converts it into a digital word that a drive or PLC can interpret for precise shaft positioning. By presenting a clean count-per-revolution signal derived from the resolver’s sine and cosine channels, the module helps industrial automation systems close high-speed position loops without the added complexity of optical encoders. It mounts in control cabinets alongside Vickers servo drives and supports zero-setting through onboard jumpers.
The board offers several discrete count scales that depend on the resolver pole count and selected conversion resolution. With a 10-bit output and a 4-pole resolver, each full turn is represented by 2,048 discrete positions. Switching to a 6-pole resolver raises the count to 3,072 positions per revolution, while an 8-pole resolver provides 4,096 counts per revolution. For finer granularity, a 16-bit mode with a 4-pole resolver generates 131,072 unique positions, allowing drives to command smoother velocity profiles. All position data exit the card through dual feedback ports equipped with two male DB9 connectors, allowing direct connection to Vickers racks that use the same pinout.
For applications that require tighter interpolation, the 16-bit range supports a 6-pole resolver with 196,608 counts per revolution, reducing quantization error during slow-speed movement. A selectable resolution jumper provides 10-, 12-, 14-, or 16-bit modes, allowing the feedback density to be matched to the controller bandwidth. The board uses two dedicated resolver channels to process the resolver’s sine and cosine inputs while maintaining phase integrity. Its interface accepts resolver stators with 4, 6, or 8 poles, allowing the board to work with several motor frame sizes. The selectable count range also enables the connected control system to balance position detail against processing requirements without changing the resolver interface.
