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User manual SID116 – 09.04.2015r. v.1.0 page 11
3.4
Incremental encoder
At velocity and position adjustment modes it is required to connect an encoder to the driver. SID116 allows
connection of incremental encoder with operating voltage 5..24 V. Encoders with supply 5 V can be supplied
directly from +5 V (25) output. Maximal output current efficiency is 150 mA.
Connection example of Push-Pull encoder type is presented below:
Picture. 6. Connection example of Push-Pull encoder type supplied from +5 V driver output
In case of encoder connection with power supply higher than 5 V encoder should be connected to external source
of power supply. To driver please lead EA, EB, EC and GND signals, where GND is ground of encoder power supply.
Maximal encoder pulses frequency shouldn’t exceed 1 MHz. In case of encoder with Open Drain or Open
Collector output type connection scheme is shown as following:
Picture. 7. Connection scheme of Open Drain/Open Collector encoder type supplied by +5 V driver output with use of pull-up resistors
Signal lines requires pulling-up by resistor to supply line. For +5 V power supply it is recommended to use 1 kΩ
resistor. In case of 12.. 24 V encoder supply please use 2 kΩ resistor, to driver please lead EA, EB, EC and GND
signals, where GND ground of encoder power supply. Maximal encoder pulses frequency shouldn’t exceed 1 MHz.
Position counting direction from encoder can be reverse by exchange line of A with B channel
line
