OverviewSpecificationMechanicalConnectionDownload
Overview
By implementing advanced DSP current control algorithm, Leadshine EM705 is a advanced high performance
2-phase digital stepper drive. It takes step & direction or CW/CCW control commands, and is very simple
to implement in OEM applications.
Without an external sensor such as an encoder, an EM705 stepper drive can automatically identify 100% of stall
of driven motors at 300 RPM or above, and send fault signals back to motion controller or other devices
The EM705 stepper drive also adopts advanced features like electrical damping, anti-resonance, start-up smoothing, multi-stepping...
With the input voltage of 20 - 70 VDC and output current of 1.40 - 7.00A, it is capable of driving a wide range of 2-phase stepper motors
with high precision at extra smoothness, quietness, and very low motor heating. Its Multi-Stepping feature allows a low resolution step input to produce a much
higher microstep output for smoother & quiet motor movement, and much lower motor heating. This will significantly improve the performance of your stepper
control systems.
EM705 stepper drive is easy to setup and configure via DIP switches. There are 16 resolution settings from 200 - 25600,
and 7 output current settings from 1.40 - 7.00. Also, a user can simply set the idle current to full (100%) or 50% of
the output current via a DIP switch. Its motor auto identification and drive self-configuration feature allows quick and
easy setup for various motors at optimal performance.
Leadshine also offers matched stepper motors for EM705 with their optimized configurations stored in the stepper
drive. A user only needs to use the motor rotary switch to select the right motor, and the EM705 will automatically load the
pre-setting optimized settings for best performance.
For driving a non-Leadshine stepper motor, a user can use the 'Motor Auto Identification and Configuration' feature of EM705 to get optimized performance.
For advanced users, Leadshine offers tuning software for performance fine-tuning. A user can tune a stepper motor's
three resonance areas (usually around 0.5 rps, 1 rps, and 2 rps) to reduce noise and vibration, set microstep resolution to any value
from 200 to 104,000 (increase by 200), and configure output current to any value of 0.5 - 7.00A (increased by 0.1A);
and idle current of 1-100% of output current.
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Specification
Model: | EM705 | Phase: | 2 | Control Mode: | Step & Direction | Max Input Frequency: | 200KHz | Input Voltage Range: | 20 - 70 VDC | Suggested Power Supply Voltage Range: | 24-65 VDC | Software Cofig. Resolution Range: | 200 - 102,400 (increased by 200) | # of DIP Switch Resolution Configurations: | 16 | DIP Switch Resolution Setings: | 200, 400, 800, 1600, 3200, 6400, 12800, 25600, 1000, 2000, 4000, 5000, 8000, 10000, 20000, 25000 | Software Cofig Current Range: | 0.5 - 7.00 A (increased by 0.1 A) | # of DIP Switch Current Configurations: | 7 | DIP Switch Current Configurations: | 2.7A, 3.6A, 4.6A, 5.5A, 6.4A, 7.3A, 8.2A | Logic Current Range: | 7-16mA (10mA typical) | Logic Voltage Range: | 4-5 VDC for pulse active high (default) , or 0-0.5V for pulse active low | Communication Type: | RS232 | Pulse enabled at: | Rising edge | Idle Current Percentage: | 50 % | Software Config. Idle Current Percentage: | 0-100% | # of Digital Inputs: | 3 | # of Digital Onputs: | 1 | Step Width: | 2,500 ns | Minimal Direction Setup Time: | 5,000 ns | Protection: | Over-current, over-voltage, and stall | Isolation Resistance: | 500M Ohm | Environment: | Avoid dust, oil fog and corrosive gases | Ambient Temporature: | 0-50°C | Humidity: | 40–95% RH | Operating Temporature: | 0-70°C | Vibration: | 5.9 m/s2 Max | Storage Temporature: | -20-65°C | Specification: | 4.65 X 2.97 X 1.34 Inches | Weight: | 0.61 lb |
Mechanical Specification
Unit: mm
1 inch = 25.4 mm
Download(s) for
Datasheet: |
EM705d.pdf |
Hardware installation manual:
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EMhm_V1.1.pdf
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Tuning software manual:
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EMsm_V1.1.pdf
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Tuning software: |
ProTuner_EM_Setup_V1.0.zip |
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Accessories
Listed below are accessories for Leadshine EM705 Advanced 2-Phase DSP Stepper Drive 20-70VDC/1.4-7.0A with Stall Detection.
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Matching Stepper Motorshybrid stepping motor
AMT offers matching stepper motors for EM705 to satisfy your application needs. Made of high quality materials, those stepper motors can run
very qietly and smoothly with low noise, low motor heating. They have been widely implemented in various industrial applications.
To see all stepper motors that AMT offers, please click here.
Matching Power Suppliesstepper servo power supply
AMT offers matching power supplies for EM705. Those power supplies were specially designed to handle back EMF from stepper or servo motors in motion controls.
To see all power supplies that AMT offers, please click here.
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