The TI-7000 (with resolver option) provides support for resolver checkout using built-in resolver decoding circuitry. The resolver under test plugs into a 7 pin connector on the TI-7000. The TI-7000 provides excitation and receives the sine and cosine signals from the resolver outputs via this connector.

The excitation frequency and amplitude is set up using the TI-7000 setup displays which are accessed via the SETUP key. The frequency is adjustable in 4 ranges: 1,000-2,000, 2,000-5,000, 5,000-10,000 and 10,000-20,000 Hz. The range is selected by pressing keys 1-4. Within a range, the particular frequency is selected using the Up and Down Arrow keys and watching the display as shown in the sample display. A similar menu allows for setting the excitation amplitude.

The TI-3011 Resolver Breakout Board provides convenient test points to allow easy oscilloscope connection for viewing excitation, sine, and cosine signal waveforms to further aid in setup.

The Resolver Data Display shows resolver angle and vector level as shown in the sample display. The vector level is the square root of the sum of the squares of the sine and cosine amplitudes. Ideally, this value should remain constant as the resolver is rotated. The vector level display provides an additional tool to check for resolver signal integrity. The individual sine and cosine amplitudes can be seen on a different display which is accessed via the VIEW key.

Resolver Data Display