Applied Motion STR4 User Manual
Str4/8 quick setup guide, Wiring the drive, Requirements

STR4/8 Quick Setup Guide
Requirements
To begin, make sure you have the following equipment:
▪ A compatible stepper motor.
▪ A small flat blade screwdriver for tightening the connectors (included).
▪ A suitable DC power supply. AMP recommends the PS150A24 or PS320A48 available from Applied Motion.
Step 1 - wiring the DC supply
Step 2 - wiring the motor
920-0031 A
Connect the drive to the motor. Four lead motors can be connected in only one way, as shown in Figure 1.
We recommend that eight lead motors be connected in parallel, as shown in Figure 2.
If using a non-Applied Motion Products motor, please refer to your motor specs for wiring information.
redblue
yellow
white
A+ A- B+ B-
orange+blk/wht
blac
k+org/wht
red+y
el/wht
yello
w+red/wht
A+ A- B+ B-
Figure 1
Figure 2
Wiring the Drive
a. Wire the drive to the DC power source.
(do not apply power until all connections to the drive have been made)
Note, the STR4 accepts DC voltages from 24-48V, while the STR8 accepts
DC voltages from 24-75V.
b. Ensure a proper earth ground connection by using the screw on the
left side of the chassis.
If using an external fuse, we recommend the following in-line with the V+ connection :
STR4: 3AG, 4 amp (Littlefuse 313004P)
STR8: 3AG, 6.25 amp (Littlefuse 3136.25P)
*See the
STR Hardware Manual
for more information about
power supply and fuse selection.
Motor & Power Supply
Connector
Run Current, Idle Current
Steps/rev, Inertia, Self Test
Input & Output
Signals
Motor Selector
Status LEDs
Layout of the front panel of the STR drive.