Datasheet

Si251_01c_oi_e.doc / Nov-15 Page 7 / 17
4. Connections
The unit provides a 9-pin SUB-D connector (female on the unit site) for connection of the SinCos
sensor. For easy power supply of the encoder, an external jumper allows to switch an auxiliary
voltage of either 5.2 V or approx. 20 V to the same connector. Also the mean voltage is
available on the connector pins, allowing also the use of sensors with non-differential sinus
output.
The incremental output impulses are available with RS422 standard and HTL standard (push-
pull) at the same time, and one output of both or both outputs at a time may be used, quite
according to the application.
All inputs and outputs as well as the power supply refer to the same
reference potential (GND)!
In case of errors the Error Output switches to HIGH. At the same time the yellow front LED will
be lit. To release an Error state, a HIGH signal must be applied to the “Error Release” input
(PNP, HTL, a positive signal of 10 … 30 VDC will release the error). Errors may be cleared also
by pushing the small button on the top site of the unit.
The unit operates with a 18 … 30 VDC power applied to terminals 5 (+) and 6 (-)