Moons' Applied Motion Products 3535 User manual

Flip Over
Selecting Between Full and Half Step Operation
The top switch in the bank of DIP switches selects between FULL and
HALF step operation.
Setting Phase Current
The drive uses a combination of DIP switch settings to set the current. There is al-
ways a base current of 0.4A. To increase this current slide the switch for each value
towards the label until they add up to your required value.
Suppose you want to set the driver for 2.2 amps per phase. You need the 0.4 A
base current plus another 1.6 and 0.2 A.
2.2 = 0.4 + 1.6 + 0.2
Slide the 1.6 and 0.2 A switches toward the labels as shown in the gure.
Connecting Logic
A schematic diagram of the input circuit is shown below.
You must supply 5 volts DC to activate the LEDs on
the input side of the optoisolators. The maximum
current draw is 15 mA.
Your controlling logic must be capable of sinking at
least 5 mA to control each drive input. Most CMOS
and open collector TTL devices are directly compat-
ible with this drive. Logic low, or 0, for a given input
occurs when that input is pulled to less than 0.8 volts
DC. In this state the LED is conducting current. Logic
high, or 1, occurs when the input is greater then 4 volts or open.
STEP tells the driver when to move the motor one step.
DIRECTION signals which way the motor should turn.
ENABLE allows the user to turn o󰀨 the current to the motor by setting this signal
to logic 0.
If you have no need to disable the ampliers, you don’t need to connect
anything to the ENABLE input.
Amplier
Optical
Isolator
step
direction
+5
1
Step
Sequencer
Optical
Isolator
Oscillator
STEP/SLEW JUMPER
current setting
full step/
half step
step
dir
accel
decel
speed adj
A+
A–
B+
B–
to
motor
Block Diagram
3535 O only
65
4
3
2
logic
connector
(STEP, +5, DIR, EN
trimpots for adjusting
oscillator speed, accel and
decel rates
(3535 O only)
mounting
hole (1 of 6)
power
connector
motor
connector
switches for
selecting current &
full or half stepping
jumper for selecting
oscillator mode
(3535 O only)
connector for external
speed control
(3535 O only)
Connecting the Motor
STEP motors have 4, 6 or 8 leads, these are wired to 4 connections on the
drive in various combinations.
Motors will perform di󰀨erently
according to the way it is con-
nected, to nd out more about
the di󰀨erent ways of connecting
your motor, see the specs or
FAQs on our website.
Warning: When connecting the motor to the driver, be sure that the motor
power supply is o󰀨. Secure any unused motor leads so that they can’t
short to anything. Never disconnect the motor while the drive is powered
up. Never connect motor leads to ground or to a power supply!
12–35V
motor
supply
12-35 VDC
+
–
3A slow
blow
fuse
DO NOT REVERSE WIRES - THIS WILL DAMAGE THE DRIVE
HALF STEP
0.1
0.2
0.4
0.8
1.6
Shown in FULL STEP
position
HALF STEP
0.1
0.2
0.4
0.8
1.6
Shown in FULL STEP
position
DIR
STEP
+5V
Drive Input Circuit
1kW
EN
1kW 1kW
Quick Setup Guide
3535 & 3535-O
Using the Oscillator
Drives with an O su󰀩x are equipped with internal
pulse generators that you can use to drive the mo-
tor. To set the drive to oscillator mode, simply nd
the jumper located near the center of the printed
circuit board and move it to the SLEW setting. The
gure at the right shows the proper setting of the
jumper.
To change the slew speed, locate the trimpot labeled SPEED. By turning the brass-
screw you can raise or lower the speed. Turning the screw clockwise makes the
motor run faster.
The acceleration and deceleration rates can also be adjusted using the
trimpots labeled ACCEL and DECEL. Turning the screw clockwise makes
the motor accelerate and decelerate faster.
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WWW.APPLIED-MOTION.COM
A+
A–
B+ B–
4
lead
motor
Red
Blue
Yellow White
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
A+
A–
B+ B–
8
lead
motor
8 Leads
Series
Connected
Orange
Org/Wht
Blk/Wht
Black
Red Red/
Wht Yel/
Wht
Yellow
A+
A–
B+ B–
8
lead
motor
Orange
Org/
Wht
Blk/Wht
Black
Red
Red/Wht
Yel/
Wht
Yel
low
8 Leads Parallel Connected
A+
A–
B+ B–
8
lead
motor
Orange
Org/
Wht
Blk/Wht
Black
Red
Red/Wht
Yel/
Wht
Yel
low
8 Leads
Parallel
Connected
Connecting the Power Supply

In some applications, step motors and drives are used with mechanical
switches only and there is no readily available source of +5 volts.
In these instances, the 12-35 VDC motor power supply can be used with ad-
ditional dropping resistors to power the opto LEDs. The recommended wiring
diagram is shown on page 11. Table I lists the appropriate resistor value to
use for a given power supply voltage. 1/4 watt or larger resistors should be
used.
Please do not to reverse the wiring, as damage to the LEDs will result
rendering the drives inoperable. Check your wiring carefully before
turning on the power supply!
Using Remote Speed Control Potentiometer
The latest revision of model 3535 O step motor drive includes an analog signal input
connector that can be used to control the oscillator speed externally. Normally, an on
board potentiometer controls the speed.
You will need:
• a 100kW or 200kW linear potentiometer. A multiturn type is recommended.
• a two pin female connector compatible with .025 inch square pins on .100”
centers. AMP type MTA-100 is one type that works well
• a shielded, two wire cable
To install the external pot:
• locate the connector on the 3535 O labelled ÒXSPD.Ó It can be found between the
signal connector and the three blue potentiometers.
• turn the screw on the blue SPEED potentiometer 15 turns counterclockwise. If you
don’t do this, the external potentiometer will not provide the correct speed range.
• prepare a cable with your pot on one end and the connector on the other end:
the potentiometer wiper connects to pin 2
the potentiometer CW terminal connects to pin 1
the third pot terminal connects to the wiper
the cable shield connects to the CW pot terminal
With this arrangement, speed will increase
as you turn the external pot clockwise.The
frequency range for the 200k ohm pot will be
600 to 5000 steps per second. The frequency
range for the 100k ohm pot will be900 to
5000 steps per second. The on board trim-
pots will still control acceleration and declera-
tion times. Turning the pots clockwise makes
the acceleration and deceleration faster (i.e.
reduces the time to or from speed).
Using Mechanical Switches with 3535-O Drive
The 3535-O was designed to be used with active logic and for that reason are optically
isolated. To activate the optoisolators a small, but not insignicant amount of current at
+5 volts DC is required.
cw
3535 O
Drive
external
pot
XSPD
connector
1
2
Motor
Power
Supply
12-35
VDC
+
–
R
R
Run/Stop switch
(closed=run)
Direction
switch
3535 O
drive
STEP +5 DIR
12-35VDC
Supply R Supply R Supply R
Voltage Ohms Voltage Ohms Voltage Ohms
12 1200 21 3000 30 4700
15 1800 24 3600 33 5100
18 2400 27 4200 35 5600
Table I: External Dropping Resistors
Choosing a Power Supply
To nd out how to choose a power supply refer to the tech notes on our website.
Mounting the Drive
To operate the drive continuously at maximum power you must properly mount it on
a heat sinking surface with a thermal constant of no more than 4°C/watt. Often, the
metal enclosure of your system will make an e󰀨ective heat sink.
smooth flat surface
#4 screws
wide side mount narrow side mount
Technical Specications
Ampliers
Dual, bipolar H-bridge, pulse width modulated switching at 20kHz. 12-35 VDC
input. 0.4 - 3.5 amps/phase output current, switch selectable in 0.1 A incre-
ments. 122 watts maximum output power. Automatic idle current reduction,
reduces current to 50% of setting after one second
Oscillator (O sux)
400 to 5000 steps per second. Linear acceleration and deceleration, individu-
ally adjustable from 5 to 900 msec.
Inputs
Step, direction and enable, optically isolated, 5V logic. 5mA/signal, sink re-
quirement. Motor steps on rising edge of stepline. 10 µsec minimum low pulse.
50 µsec minimum set up time for direction signal. Step input doubles as run/
stop in oscillator mode. (0 = run, 1 = stop.)
Physical
Mounted on 1/4 inch thick black anodized aluminum heat transfer chassis.
1.5 x 3.0 x 4.0 inches overall. Power on LED.
Maximum chassis temperature: 70° C.
Connectors
European style screw terminal blocks. Motor: 4 position. Signal Input: 4 posi-
tion. DC Input: 2 position.
CE Mark.
Complies with EN55011A and EN50082-1(1992).
Applied Motion Products, Inc.
18645 Madrone Pkwy
Morgan Hill, CA 95037
T: 800-525-1609 | applied-motion.com
Doc 920-0013 Rev C - 8/4/2022