20-101-1051 Datasheet, PDF (103/165 Pages) List of Unclassifed Manufacturers – C-Programmable Core Module with NAND Flash Mass Storage and Ethernet

Figure B-11 shows the stepper-motor driver circuit.
®
PF4
PF5
®
PF6
PF7
U2
IN1 2
ENABLE1 1
IN2 7
IN3 10
ENABLE2 9
IN4 15
3 OUT1
6 OUT2
11 OUT3
14 OUT4
L293DN
U3
IN1 2
ENABLE1 1
IN2 7
IN3 10
ENABLE2 9
IN4 15
3 OUT1
6 OUT2
11 OUT3
14 OUT4
L293DN
J3
VMA+ 1
MDA1 ₂
MDA2 3
MOTOR +
MDA3 ₄
MDA4 5
VMA- 6
MOTOR –
J4
VMB- 1
MDB1 ₂
MDB2 3
MOTOR +
MDB3 ₄
MDB4 5
VMB+ 6
MOTOR –
Figure B-11. Stepper-Motor Driver Circuit
The stepper motor(s) can be powered either from the onboard power supply or from an
external power based on the jumper settings on headers JP1 and JP2.
Table B-3. Stepper Motor Power-Supply Options
Header
Pins Connected
1–2
9–10
Onboard power supply to U2
JP1
3–4
7–8
External power supply to U2
1–2
9–10
Onboard power supply to U3
JP2
3–4
7–8
External power supply to U3
Factory
Default
×
×
User’s Manual
97