PlasmaDiv user
’s
manual v1.0
March 10, 2022
4
www.polabs.com
LEDs description
o
PWR (green) when power is applied. It must be illuminated.
o
ENBL (green)
–
Enable. It must be illuminated.
o
ERR (red)
–
Error. It is illuminated on these errors: Overtemperature, Overcurrent. Controller
must cool down or short circuit must be illuminated. After that Switch power down.
Connection and setting
1.
Mount the PoStep to the stable surface. If PoStep25-256 will be mounted to metal surface,
please isolate it.
2.
Set micro stepping switch to required micro stepping multiplier according to printing on the
driver.
3.
Put current limit jumper to required position: 0.5 A, 1 A, 1.5 A, 2 A or 2.5 A.
4.
Connect step, direction, enable and GND to PoStep25-256
5.
Connect motor. Use thick wires, at least 1mm² or more.
6.
Connect power supply. Use thick ( at least 1mm²) and as short is possible wires. Connect each
motor driver directly to power supply with + and GND.
10 pin IDC connector pinout
Pin
Function
1
nEnable (0=enable, 1=disable)
3
direction
5
step
7
Error (from PoStep to controller)
2, 4, 6, 8, 10
GND
9
Not connected
Microstepping settings
PoStep25-256 can be set to full step, half step and up to 256 microstepping.
M0
M1
STEP
0
0
Full step
1
0
½ Non circular
HiZ
0
½
0
1
¼
1
1
8 microsteps/step
HiZ
1
16 microsteps/step
0
HiZ
32 microsteps/step
HiZ
HiZ
128 microsteps/step
1
HiZ
256 microsteps/step
