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\deftab708\paperw15309\paperh16840\margl1134\margt1134\margr3430\margb1338\pard\sb100\plain\f0\fs18 A hollow-shaft measuring system consisting of scanning head and gear wheel is available for 1PH2 and 1FE1 built-in motors. Gear wheels are available with 256 or 512\~teeth. Gear wheel and scanning head must be ordered separately with their respective order numbers. In the configuring table, appropriate gear wheels are assigned to the 1PH2 motors. It is possible to choose a different version, but the gear wheel must be assigned to the scanning head as shown in the configuring table. The encoder is connected directly to the converter. \par The scanning head of the gear wheel encoder contains magneto-resistors for non-contact scanning as well as amplifier electronics. \line The plug connection and the encoder signals are compatible with the encoders of the 1PH7 motors. The scanning head is assembled using a spacing gauge.\par\pard\par }