Stepper drive
Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) stepper drive
Digital open-loop pulse/direction stepper drives from 1.5 A to 8.2 A with auto-tuning, anti-resonance and soft start.
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Pricing and availability
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Need Leadshine parts, a replacement or a suitable alternative? Send us a part number, or tell us what the machine needs to do. Our UK engineers will come back with the right product, pricing, lead time and delivery, whether that is the original part, a checked alternative or a complete axis.
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Spec builder
Configure Leadshine EM-S Series (EM415S-EM882S, EM532-MINI)
Select every part you need and answer the questions an applications engineer would ask. Our engineers use your specification to come back with the right products, pricing and lead times. You see your summary before we ask for any details.
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- 1Products
- 2Performance
- 3Environment
- 4Volumes
- 5Your spec
What are you specifying?
Select everything you need. A motor, drive and gearbox can be specified together as one axis.
Key specifications
| Supply | 20-40 VDC (EM415S/EM422S), 20-50 VDC, 20-80 VDC (EM870S/EM882S) |
|---|---|
| Current (max) | 8.2 A |
| Control | pulse & direction or CW/CCW |
| Microstepping | 16 DIP settings 200-25,600; up to 51,200 via software |
| Max input | 200 |
| Motor nema sizes | 8, 11, 15, 17, 23, 34, 42 |
Series ranges as published; individual models vary. The full datasheet, drawings and CAD models are available on request.
Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) replacement and alternative options
Use these supply-network options as a starting point for an engineering check. We can also help source the original Leadshine part. Published series figures do not establish an exact-model or drop-in replacement: confirm ratings, fit, interfaces and approvals for your application.
AMC's analogue servo drives for centralised control schemes: set up with DIP switches and potentiometers, commanded by +/-10 V or PWM. They span 10-400 VDC and 45-265 VAC, up to 150 A continuous and 250 A peak, in PCB, panel and vehicle formats. PCB extended-environment parts run -40 to +85 C.
| Published maximum | Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) | AxCent Analogue Servo Drives (AB, AZ, … |
|---|---|---|
| Continuous current | 8.2 A | 150 A meets or exceeds |
| Peak current | — | 250 A |
Network-capable AMC digital drives spanning 10-747 VDC and 120-480 VAC, up to 150 A continuous and 250 A peak (27.4 kW peak power), in PCB, panel, machine and vehicle formats. They support almost any motor type and feedback, plus CANopen, EtherCAT, POWERLINK and Modbus.
| Published maximum | Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) | DigiFlex Performance Servo Drives (DP,… |
|---|---|---|
| Continuous current | 8.2 A | 150 A meets or exceeds |
| Peak current | — | 250 A |
| Power | — | 27,400 W |
ADVANCED Motion Controls' ultra-compact, high power-density digital servo drives for 10-90 VDC systems, up to 100 A continuous and 200 A peak. They come in PCB, machine-embedded, panel and development-board formats, carry STO as standard, and run EtherCAT, CANopen or Ethernet/IP. Extended-environment models are rated -40 to +95 C.
| Published maximum | Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) | FlexPro Digital Servo Drives (FE, FX, … |
|---|---|---|
| Continuous current | 8.2 A | 100 A meets or exceeds |
| Peak current | — | 200 A |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) model codes
Published model codes in the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) range, with key figures from the manufacturer's data. Search this page for your part number, or send it to us for availability, pricing and lead time.
| Model code | Supply (VDC) | Pricing / replacement |
|---|---|---|
| EM415S | 20-40 | Quote or replacement for EM415S → |
| EM422S | 20-40 | Quote or replacement for EM422S → |
| EM870S | 20-80 | Quote or replacement for EM870S → |
| EM882S | 20-80 | Quote or replacement for EM882S → |
| EM532-MINI | — | Quote or replacement for EM532-MINI → |
Options
- 500 kHz input (custom)
- idle current reduction 50/90%
- brake and fault outputs
- RS232 tuning
Typical applications
What a stepper drive is
An open-loop stepper drive powers a stepper motor by switching current through its windings in sequence, usually using a chopper that regulates phase current to a set level. It receives step and direction pulses from a controller, and each pulse moves the motor by one step or microstep. Settings for current, microstepping and idle current are made by switches or software. Without position feedback, the drive assumes the motor follows each step.
When engineers choose a stepper drive
Choose an open-loop stepper drive for simple, low-cost positioning where loads are predictable and missed steps are unlikely, such as indexers, small axes and instruments. It is easy to set up with no tuning. The trade-offs are no stall detection, heat from constant current and resonance at some speeds. Where loads vary or a lost position would cause a fault, a closed-loop stepper drive or servo is safer.
How to specify the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI)
Send these with your enquiry and an engineer can confirm the right Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) variant:
- Supply voltage (V DC or AC)
- Phase current range (A)
- Motor type: two-phase or three-phase
- Microstep settings
- Pulse input frequency and signal levels
- Idle current reduction
- Mounting and cooling
Common mistakes to avoid
- Supply voltage too low for the speed required
- Setting current above the motor rating
- Ignoring mid-speed resonance
- Mismatching pulse signal levels with the controller
Leadshine EM-S Series (EM415S-EM882S, EM532-MINI): frequently asked questions
Can you help replace Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) or source the original?
Send the full model code, quantity and required date. Our engineers can check original-part availability and assess suitable alternatives, including supply-network options where appropriate. We confirm compatibility and any changes needed before recommending a replacement.
What is the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI)?
Digital open-loop pulse/direction stepper drives from 1.5 A to 8.2 A with auto-tuning, anti-resonance and soft start. Published series figures include current 8.2 A. It is available through our supply network, and our engineers can confirm the right variant for your application.
What model codes are in the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) range?
The Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) range includes EM415S, EM422S, EM870S, EM882S, EM532-MINI. The table on this page lists each published model code with its key figures. Send us the code you use, or the one you need to replace, and our engineers will confirm availability, lead time or the closest equivalent.
Who makes the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI)?
The Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) is made by Leadshine (Leadshine Technology) available through our supply network. Send us your requirement for pricing, lead time, datasheets and CAD.
What is the current of the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI)?
The published series maximum current is 8.2 A. Individual models and sizes in the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI) range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Leadshine EM-S Series (EM415S-EM882S, EM532-MINI)?
We can assess suitable replacement options. On published figures, ADVANCED Motion Controls AxCent Analogue Servo Drives (AB, AZ, AV, B, AVB) and ADVANCED Motion Controls DigiFlex Performance Servo Drives (DP, DZ, DV) are options to assess from our supply network. An engineer confirms the fit against your application before recommending anything.
How does supply voltage affect stepper performance?
Higher supply voltage lets current rise faster in the motor windings, so torque is maintained to higher speeds. A common rule of thumb is to keep the supply within the motor and drive limits, often several times the motor's rated voltage. Check the drive's maximum voltage and the motor's insulation rating.
What is idle current reduction?
Idle current reduction lowers motor current automatically when the motor is stationary, reducing heat while still holding position with reduced torque. It is useful for steppers that spend time at standstill. Check that the reduced holding torque is enough for the load.
Further reading: How to select a stepper drive · How to select a stepper motor · Servo drives
Often compared with
Engineers specifying this series often compare it with:
Other stepper drive series
Engineer support
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How it works
From enquiry to delivery
Send a part number or describe the application. Our engineers take it from there: the right product, a clear quotation, and delivery and support arranged.
- 01Tell us what you needSend a part number, or configure the application, quantities and timing.
- 02An engineer reviews itWe check the specification and find the original part, a checked equivalent or a complete axis.
- 03Receive your quotationProducts, pricing, lead time and compatibility notes in one reply.
- 04Order and deliveryWhen you are happy, the order is placed and delivery and after-sales support are arranged.