Sure
Step
TM
Stepping Systems User Manual
3–5
Chapter 3:
Sure
Step
TM
STP-DRV-4035 Microstepping Drive
5th Ed., Rev. B 01/2019
Connecting the Motor
W
arning
: When connecting a step motor to the
Sure
Step™ STP-DRV-4035
microstepping drive, be sure that the motor power supply is switched off. When using
a motor not supplied by
a
utomation
D
irect
, secure any unused motor leads so that they
can’t short out to anything. Never disconnect the motor while the drive is powered up.
Never connect motor leads to ground or to a power supply. (See the Typical Wiring
Diagram shown on page 2-4 of this chapter for the step motor lead color code of
a
utomation
D
irect
supplied motors.)
You must now decide how to connect
your stepping motor to the SureStep
TM
STP-DRV-4035 microstepping drive.
Four Lead Motors
Four lead motors can only be connected
one way. Please follow the wiring
diagram shown to the right.
Note: All
A
utomAtion
D
irect
Sure
Step™
motors are four lead bipolar step motors.
Six Lead Motors
Six lead motors can be connected in series or center tap. In series mode, motors
produce more torque at low speeds, but cannot run as fast as in the center tap
configuration. In series operation, the motor should be operated at 30% less than
rated current to prevent overheating. Wiring diagrams for both connection methods
are shown below.
NC
means not connected to anything.
Note: Be aware that step motor wire lead colors vary from one manufacturer to another.
A+
A–
B+
B–
4
lead
motor
Red
White
Green
Black
4 Leads
A+
A–
NC
B+
B–
NC
6
lead
motor
Red Black
Red/
Wht
Green
Grn/Wht
White
6 Leads Series Connected
A+
A–
NC
B+
B–
NC
6
lead
motor
Grn/Wht
White
Green
Red
Red/
Wht
Black
6 Leads Center Tap Connected
