Danaher Motion 05/2008 Wiring the DriveS200-VTS Product Manual 536.7.3 High Speed InputHigh Speed InputJ4-10, 11(Step or PWM)The S200 has one high speed input for use with PWM inputcommands or with Step Input in Position Mode.J4-10HSINP1+J4-11HSINP1-221 Ω2.21 kThe high speed input works directly with 5 V input, 3.0 to 6.0V range, without the use of a current limiting resistor. Tooperate the input with voltages higher than 5 V, an externalcurrent limiting resistor is required in series with the input.The input current should be in the range of 9 to 24 mA forproper operation. The following table lists the recommendedcurrent limiting resistors for supply voltages greater than 5 V.Supply Voltage Current Limiting Resistor5 V None12 V 360 Ohms, ¼ watt, resistor24 V 1000 Ohms, ½ watt, resistorIn Step-Dir Position Mode the transition edge from LEDcurrent to no LED current yields a step count. The transitionedge from no LED current to LED current yields no action.NOTEMaximum step frequency is 1.5 MHzMinimum pulse width is 250 nsNOTEFor single ended operation, it is recommended that both wires (J4-10 andJ4-11) run in the cable be terminated at the control source (differentialnoise).High Speed InputDifferential DriveA differential drive is recommended for the Step Input. Toprovide maximum noise immunity, drive the high speedinput differentially from 5 V logic through twisted pair wiring.The differential driver needs to deliver a minimum of 3.0 Vto the input terminals on J4. A CMOS driver isrecommended.5 V DifferentialDriver - CMOSJ4-11HSINP1-J4-10HSINP1+Twisted PairWiring3.0 V Min.
