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Manual Slider SFX
2.15 X6, X8, X11 – Motor connectors
Slider SFX
is designed for 2-phase stepping motors only. It can
be used with both bipolar and unipolar motors. If no datasheet is
available to your motors, you have measure which connectors be-
long to which winding of the motor.
Bipolar motors
have 4 connections, where each winding has two
connections. These can be found easily with an Ohm meter. Both
ends of one winding have to be connected to the board as phase
A1/A2, while the other one are connected as phase B1/B2.
Unipolar motors
come with 5 or 6 connections, where both win-
dings have an additional contact in the middle of the coil. Also with
this motors, the endings of whe coils can be found easily by measu-
ring the resistance of the different connections. Leave the centre
taps unconnected and isolate them to prevent any contact with
conductive materials. The connection to the board is then the same
as before, connecting one coil to phase A1/A2, the other one to
phase B1/B2.
When the motor connections are correct, the motors should move
smooth and without jerk in both directions. A wrong connection
leads to jerky movement or in a dithering movement of the motor.
The direction of the motor’s movement can be changed by crossing
the connections on one of the phases, e.g. changing A1 with A2.
The connections are assigned as follows:
•
X11 (1+2)
– X axis phase A
•
X11 (3+4)
– X axis phase B
•
X8 (1+2)
– Y axis phase A
•
X8 (3+4)
– Y axis phase B
•
X6 (1+2)
– Z axis phase A
•
X6 (3+4)
– Z axis phase B
Attention:
Do not connect a motor phase to positive supply voltage under no circumstances.
This would inevitably lead to a break down of the power driver.
Summary of Contents for Slider SFX
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