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MOONS’
SR4/SR8 Stepping Motor Drive User Manual
www.moons.com.cn
1 Introduction
Thank you for selecting a MOONS' motor drive. We hope our dedication to performance,
quality and economy will make your motion control project successful.
If there’s anything we can do to improve our products or help you use them better, please call
(86)21-52634688 or fax (86)21-62968682. You can also email info@moons.com.cn
.
1.1 Overview
The SR series drive is one cost-effective, high performance 2 phase stepping drive, designing
based on the AC servo drive technology, with high torque, low noise, and low vibration. You
can select the running current and microstep resolution by a piano switch. Our purpose is to
have a drive which is cheaper but with better performance, especially for low cost and high
quality market.
1.2 Features
POWER SUPPLY SR4: 24 to 48 VDC;
SR8: 24 to 75 VDC;
OUTPUT POWER Position Switch selectable, 8 setting.
SR4: Max 4.5 Amps Peak; SR8: Max 7.8 Amps Peak.
CURRENT CONTROL Advanced digital current control provides excellent high speed torque
MICROSTEP RESOLUTION Position Switch selectable, 8 setting: 400, 800, 1600,3200,6400,
12800, 25600, 51200 step/rev.
SPEED RANGE Speed up to 3000rpm.
ANTI RESONANCE Raises the system-damping ratio to eliminate midrange instability and
allow stable operation throughout the speed range of the motor.
AUTO SETUP Measures motor parameters and configures motor current control and
anti-resonance gain settings.
MICROSTEP EMULATION Performs high resolution stepping by synthesizing coarse steps into fine
micro-steps.
CONTROL MODES Step & Direction.
INPUT DIGITAL FILTERS 2 MHz Digital Filter for high speed inputs.
MOTOR TYPE SELECT 16 bits rotary switch is used to select the desired Motor database.
Motor database is pre-loaded at the Factory.
LOAD INERTIA SELECT As part of the Motor database each motor can be selected for use with
Low or High Load Inertia.
IDLE CURRENT Position Switch selectable, automatic 50% or 90% idle running current
after 1 s motor needn’t move.
SELF TEST Position Switch selectable, the drive will perform a 2 rev, 1RPS,
CW/CCW move test.
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