3SR8-Plus
Step Motor Drive
Quick Set-Up Guide
1
Requirements
To use the 3SR8-Plus Step Drive, the following items are
needed:
• A power supply (24 - 75 VDC)
• Pulse & Direction signal
• A compatible step motor
Switches for
selecting
Motor
Connector
Power
Connector
Grounding
Screw
OUTOUT+
ENEN+
DIRDIR+
STEPSTEP+
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
BB+
AA+
VV+
If the power supply does not have a fuse
on the output or some kind of short circuit
current limiting device, a 4 amp fast acting
fuse should be installed in line with the “+”
power supply lead.
Connect the motor power supply “+” terminal to the drive terminal labeled “V+”.
Connect the power supply “-” to the drive
terminal labeled “V-”.
LED
Control signal
2
Connect to the Power Supply
Be careful not to reverse the wires.
Switches for
selecting
SW12
SW11
SW10
SW9
3
Connecting to a Motor
Never connect the motor to or disconnect it from the drive when the power is on. Never connect the motor
leads to ground or to a power supply.
A 3-phase step motor’s winding is either a star or delta configuration. The 3SR8-Plus drives and MOONS’
motors are set up for delta connection. Connect the motor leads to the drive screw terminals U, V, and W.
Any two leads may also be reversed to change the motor’s running direction. For a star configuration,
consult the documentation for that motor.
Selecting the Motor
4
Each position of the 16-bit rotary switch selects a different motor, and automatically sets the configuration
parameters in the drive. The 3SR8-Plus drive comes programmed with up to 5 typical motors as factory defaults. Drives can be customized with specially selected motors when required. Available options are on the
drive label.
The switch also selects a low or high inertia for each motor to allow for various load conditions.
The low setting is 1:1, and the high setting is 10:1. Each motor in the loaded database has
unique settings to optimize the anti-resonance.
If the motor selection is changed, the drive power supply will need to be cycled.
Selection
Switches
SW1
Many operational
parameters of the
3SR8-Plus can be set
or changed by position switches - either
by a single switch or
a combination of ON/
OFF settings of 2 or
more switches.
SW2
SW3
Running current
SW9
SW10
SW5
SW6
Idle current
SW1
SW2
SW3
1.5A
ON
ON
ON
2.0A
OFF
ON
ON
3.0A
ON
OFF
ON
4.0A
OFF
OFF
ON
5.2A
ON
ON
OFF
5.8A
OFF
ON
OFF
7.0A
ON
OFF
OFF
7.8A
OFF
OFF
OFF
Idle Current (SW4) - ON for half current, OFF for 90%
current
Self test (SW9) - ON to enable, OFF to disable
Step Smoothing Filter (SW10) - ON to enable, OFF to
disable
Load Inertia (SW11) - ON to high, OFF to low
SW7
SW8
Microstepping
SW11
SW12
Self test Step Smoothing Filter Load Inertia
Running current - 3 switches for a total of 8 settings:
Peak
SW4
Step Noise Filter
Microstepping - 4 switches for a total of 16 settings:
Microstep(step/rev)
200
400
800
1600
3200
6400
12800
25600
1000
2000
4000
5000
8000
10000
20000
25000
SW5
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
SW6
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
SW7
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
SW8
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Step Noise Filter(SW12) - ON for 150 KHz, OFF for 2
MHz
Safety Instructions
• Only qualified personnel should assemble, install, operate, or maintain this equipment.
• Read all available documentation before assembly and operation.
• It is vital to ensure that all system components are connected to earth ground.
• This product contains electrostatically sensitive components that can be damaged by incorrect
handling.
Shanghai AMP & MOONS’ Automation Co. Ltd.
No.168 Mingjia Road, Industrial Park North Minhang District,
Shanghai 201107, P.R. China
Tel: 86-21-52634688
Fax: 86-21-62968682
E-mail: [email protected] Web: www.moonsindustries.com
Service Center
+86-400-820-9661
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