Applied Motion PDO3540 User Manual
Page 10
-9-
A+
A–
B+
B–
8
lead
motor
8 Leads Series Connected
8 Leads Parallel Connected
A+
A–
B+
B–
8
lead
motor
Orange
Org/Wht
Blk/Wht
Black
Red
Red/
Wht
Yel/
Wht
Yellow
Orange
Org/
Wht
Blk/Wht
Black
Red
Red/Wht
Yel/
Wht
Yel
low
Eight lead motors can also be connected in two ways: series and parallel. As
with six lead motors, series operation gives you more torque at low speeds and less
torque at high speeds. In series operation, the motor should be operated at 30%
less than the rated current to prevent overheating. The wiring diagrams for eight
lead motors are shown below.
-10-
Modes of Operation
The PDO 3540 has four modes of operation, selected by three dip switches.
Self Test Mode is used for trouble shooting. If you are unsure about the motor or
signal connections to the drive, or if the PDO 3540 isn’t responding to your step
pulses, you can turn on the self test.
To activate the self test, slide switch #1 toward the
TEST label. The drive will slowly rotate the motor,
1/2 revolution forward, then 1/2 revolution back-
ward. The pattern repeats until you slide the
switch away from the TEST label. The PDO 3540
always uses half step mode during the self test, no
matter how you set the steps/rev switches. The self
test ignores the STEP and DIRECTION inputs
while operating. The ENABLE input continues to
function normally.
Pulse & Direction Mode - the PDO 3540
receives step pulses from an indexer such as the
Applied Motion Si-1 or Si-100. Steps/revolution
are set by switches 3 - 6 (see page 13).
Joystick mode - speed and direction are deter-
mined by an external analog voltage. STEP and
DIR inputs can be used for limit switches. SPEED
input selects speed range. LO SPEED and HI
SPEED pots adjust the 2 speed ranges.
Oscillator mode - speed can be controlled by on-
board potentiometers and/or by an external analog
voltage. STEP input starts and stops the motor.
DIR input controls direction of rotation. SPEED
input selects the speed range.
SELF TEST
Self Test Mode
1
SELF TEST
OSC BYPASS
Pulse & Direction Mode
2
1
SELF TEST
OSC BYPASS
Joystick Mode
JOYSTICK
8
2
1
SELF TEST
OSC BYPASS
Oscillator Mode
JOYSTICK
2
1
8