If you are using an incremental encoder with a DC 5 V encoder power supply, install the
DC 5 V encoder power supply option type DWI11A between the inverter and the
incremental encoder. This option provides a regulated DC 5 V power supply for the
encoder. For this purpose, the DC 12 V power supply for the encoder inputs is converted
to DC 5 V by means of a voltage controller. A sensor line is used to measure the supply
voltage at the encoder and compensate the voltage drop along the encoder cable.
Incremental encoders with DC 5 V encoder power supply are not allowed to be
connected directly to the encoder inputs X14: and X15: . This would cause irreparable
damage to the encoder.

DWI11A DC 5 V encoder supply option
Part number 822 759 4
Voltage input DC 10...30 V, Imax = DC 120 mA
Encoder power supply DC +5 V (up to Vmax ≈ +10 V), Imax = DC 300 mA
Max. line length that can be
connected
100 m (328 ft) total
Use a shielded twisted-pair cable (A and A, B and B, C and C) for
connecting the encoder to the DWI11A and the DWI11A to
MOVIDRIVE®.