SDC / SDC2
sensor type: micro, nano
control panels: n x 1
Step-Direction Control for SmarAct Positioners
With the Step-Direction Control SDC and SDC2 we offer a low level control system to use SmarAct positioners like stepper motors. The standard inputs of the SDC controller are step and direction signals. So you can profit from the performance of our positioners with only minor changes to your own established control structure. For every step a closed-loop controlled position increment is performed in the specified direction. In order to get a position signal, the SDC2 supports a quadrature signal feedback.
n x 1
0 .. 100 V
|maximum output current|
360 mA / channel
square shape signal, quadrature feedback (SDC2)
1 x DSUB 15, female
STEP / DIR
12-24 V, 60 W (with 19″ rack up to 600W)
Integration of Controller
euro-sized board with DSUB9 for CLK / DIR (-EUR)
single channel board, adapter board for two SDC boards
table-top (-TAB), single control board (-OEM), 19″ rack module (-MOD)
|software / drivers|
SDC configuration program for Windows®
1.5 m RS232 cable
1.5 m USB / RS232 cable
100 .. 240 V, 50 .. 60 Hz together with table-top unit
SDC Architecture – Step-Direction Control for Piezo Motors
The position change in the positioner then leads to a sinus / cosinus signal of the integrated optical sensor (2). This signal is then digitized and transmitted with a serial RS485 data stream to the SDC 2 controller.
Based on this position feedback the SDC 2 controller performs a closed-loop position control and outputs quadrature signals (3).
The SDC 1 controller works in a similar way but without the quadrature feedback.