Explanation of the Selection Tables

The tables on the following pages list the encoders suited for indi-vidual motor designs. The encoders are available with dimensions and output signals to fi t specifi c types of motors (dc or ac). ••••• Rotary encoders for mounting on motors Rotary encoders for motors with forced ventilation are either built onto the motor housing or integrated. As a result, they are fre-quently exposed to the unfi ltered forced-air stream of the motor and must have a high degree of protection, such as IP 64 or better. The permissible operating temperature seldom exceeds 100 °C.In the selection table you will fi ndRotary encoders with mounted separate shaft couplings, which are particularly suited for insulated mounting stator couplings with high nat-ural frequency—virtually eliminating any limits on the bandwidth of the drive Rotary encoders for ••• ••• Incremental rotary encoders with high quality TTL or HTL compatible output signals sinusoidal output signals for digital speed controlAbsolute rotary encoders with purely digital data transfer or complementary sinusoidal incremental signals Incremental rotary encoders with For Selection Table see page 8 Rotary encoders for integration in motors For motors without separate ventilation, the rotary encoder is built into the motor housing. This confi guration places no stringent requirements on the encoder for a high degree of protection. The operating temperature within the motor housing, however, can reach 100 °C and higher.In the selection table you will fi ndIncremental rotary encoders for sinusoidal output signals of high quality—even at high operating temperatures Absolute rotary encoders with purely digital data transfer or complementary sinusoidal incremental signalsIncremental rotary encoders with additional stator couplings commutation signal with high nat-ural frequency—virtually eliminating any limits on the bandwidth of the drive Incremental rotary encoders for digital speed control with for synchronous motorsIncremental rotary encoders with operating temperatures up to 120 °C, and absolute rotary encoders for operating temperatures up to 115 °C Rotary encoders with mounted TTL-compatible output signals For Selection Table see page 10

6