EM870S, 7 A, Open-Loop Stepper Driver
The EM870S open loop stepper driver is able to power 2 phase (1.8°) and 4 phase (0.9°) stepper motors smoothly with very low motor heating & noise. It can provide up to 7.0 A, operating at 20-80 VDC.
The EM870S is a new digital stepper drive based on Leadshine’s widely implemented DM stepper drives (10 millions of units in field). While retaining features of simple design, easy setup, high precision and reliability, Leadshine has also upgraded it by adopting the latest stepper control technology and added additional advanced features for better torque (10-25%), quicker response time, control command smoothing, easy self-test, etc.
The EM870S is able to power 2 phase and 4 phase stepper motors smoothly with very low motor heating & noise. It can take 20-80VDC supply voltage and output 0.5 to 7.0A current. All the micro step and output current configurations can be easily done via built in DIP switches. Its control type (step & direction or CW/CCW) and command smooth filtering can also be configured via DIP switches. Therefore, the EM870S is an ideal choice for many applications requiring simple step & direction or CW/CCW control of NEMA 23, NEMA 24 and NEMA 34 (lower than and including 4.5 N.m motors) stepper motors. EM870S can be a direct replacement for the EM806 (SMC-033).
Features:
- Step & direction (PUL/DIR) or CW/CCW (double pulse) control
- 20-80VDC supply voltage
- 200 KHz (500KHz optional) max pulse input frequency
- 16 microstep resolutions of 200-25,600 via DIP switches, or 200-51,200 via software (increase by 200)
- 8 output current settings of 1.4 -7.0A via DIP Switches, or 0.5-7.0A via software (increase by 0.1)
- Configurable control command smoothing for reducing motor vibration
- Idle current reduction to 50% or 90% selection via SW4
- Convenient self-test for easy diagnosis
- Auto-tuning to match wide-range NEMA 23, 24, 34 stepper motors
- Anti-Resonance for optimal torque, extra smooth motion, low motor heating and noise
- Soft-start with no “jump” when powered on
- Optically isolated inputs with 5V or 24V
- Fault and Brake output
Input voltage: 20 to 80 VDC
Output current: 0.5 to 7.0 A
Pulse input frequency: 200kHz
Logic signal current: 7 to 16 mA
Isolation resistance: 500 MΩ
Operating environment:
- Environment: Avoid dust, oil fog and corrosive gases
- Storage temperature: -20 to 65°C
- Ambient temperature: 0 to 65°C
- Humidity: 40% to 90% RH
- Operating temperature: 50°C Max
- Vibration: 10-50Hz / 0.15mm
Weight: 250 g
Dimension: 118 x 75.5 x 34 mm
Dispatch
In-stock orders are dispatched within 2 business days.
Shipping options
We deliver across Australia and internationally by any of the following methods:
- Australia Post Express
- Australia Post Parcel Post
- DHL
- FedEx (only international)
- Freight account. We'll email packaging dimensions when the shipment is ready to be book.
*Transit times vary depending on the shipping method and destination.
Store Pickup - Carrum Downs, Victoria, 3201
Order before 11am to collect after 2pm the same day. Mon–Fri, 9am–5pm, excludes public holidays.
RETURNS
How to return an item Contact us before sending anything back. Email info@oceancontrols.com.au or call +61 3 9708 2390. We'll confirm eligibility and guide you to the return process.
Return window 14 days from dispatch date.
Condition required Items must be unused and in original packaging, including all documentation and manuals.
Restocking fee A 20% restocking fee applies to all accepted returns. Return shipping costs are the customer's responsibility.
Non-returnable items
- Custom-made or specially imported products
- Software licences (some software have trial versions available)
- Items not in original, as-new condition
WARRANTY
How to make a warranty claim Before returning anything, please contact us. Our engineers can often resolve the issue remotely. If a return is required, our team will provide you with a warranty form to include with the goods.
What's covered Defects in materials and workmanship under normal use and correct installation.
What's not covered The warranty does not cover damage or failures caused by factors outside our control, including incorrect installation, unauthorised alterations or modifications, or any installation or use not recommended by the manufacturer.
Standard warranty All products carry a 12-month warranty from the date of purchase unless stated otherwise.
Extended warranty
- Labjack: 5 Years
- Atop: 5 Years
- MeanWell: 3 Years
- Teracom: 3 Years
- Novus: 3 Years
