User Manual

PD42-x-1241 Hardware Manual • Hardware Version V1.00 | Document Revision V1.23 • 2019-JAN-02
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3 Mechanical and Electrical Interfacing
The PD42-3-1241 consists of the QSH4218-47-28-040 NEMA17 / 42mm stepper motor with 2.8A RMS rated
coil current and 0.4Nm holding torque. The PD42-4-1241 consists of the QSH4218-80-30-060 NEMA17
/ 42mm stepper motor with 3A RMS rated coil current and 0.8Nm holding torque. Both include the
TMCM-1241 controller / driver electronic for up-to 3A RMS motor coil current mounted on the backside
of the motor and an integrated sensOstep ™ encoder. Please see also the TMCM-1241 hardware and
firmware manuals for more details.
NOTICE
Note: In order to make proper use of the integrated sensOstep ™ encoder (the
sensor IC is placed on the bottom of the pcb) the TMCM-1241 electronics should
not be removed/moved relative to the motor. In case the integrated encoder
feature is not used, the electronics may be moved or even removed from the
motor and placed somewhere else according to application requirements.
3.1 Dimensions of PD42-x-1241
47
42.3
2
22
24±1
20
Connectors
13 max
4.5
22
42.3
31
4xM3
Deep 4.5
42.3
0
-0.05
0
-0.012
5
+ 1
0
-0.012
5
+ 0.2
31
+ 0.2
Figure 1: PD42-3-1241 with NEMA17 / 42mm stepper motors (all dimensions in mm)
60
42.3
2
22
24±1
20
Connectors
13 max
4.5
22
42.3
31
4xM3
Deep 4.5
42.3
0
-0.05
0
-0.012
5
+ 1
0
-0.012
5
+ 0.2
31
+ 0.2
Figure 2: PD42-4-1241 with NEMA17 / 42mm stepper motors (all dimensions in mm)
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