Pfaff PicoDrive P40PD User Manual

7.3 Speed control unit SCU2
The SCU2 is secured beneath the machine table using the bracket included and is mechanically
connected to the machine treadle by means of a pitman rod.
The SCU2 is connected electrically via the nine-connector coupling to the X3 connector on the back of the
control unit.
The SCU2 is an analogue, mechanical-electrical converter that converts the treadle path into an analogue
control voltage. This analogue output voltage of the SCU2 is digitalised in the control unit so that the
treadle path is subdivided into 26 stages (-2, -1, 0, 1D to 22D).
Contact assignment of the connecting plug (X3) on the SCU2 (Fig. 7.13)
+3.3V
0...5V control voltage (setpoint) / optional 0...10V control voltage
0V
1
2
3
4
5
6
7
8
9
p4xpd-2-en 7.3 08-08-2
9
Fig. 7.13

Pfaff PicoDrive P40PD Specifications

General

Brand	Pfaff
Model	PicoDrive P40PD
Category	Control Panel
Language	English