Home / B&R / B&R X20SM1436 – I/O module, 1 full bridge for controlling stepper motors

Available on request

B&R X20SM1436 – I/O module, 1 full bridge for controlling stepper motors

Name: B&R X20SM1436 – I/O module, 1 full bridge for controlling stepper motors
Brand: B&R
SKU: X20SM1436

MPN: X20SM1436 · Brand: B&R

Price on request

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Motor controllers
Lifecycle	active
Warranty	12-month (new) · 3-month (used/refurbished)
Datasheet	Manufacturer datasheet ↗

Shipping & availability

When can X20SM1436 be shipped?

X20SM1436 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up X20SM1436 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for X20SM1436 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for X20SM1436, subject to availability and destination.

• 1 stepper motor, 24 to 39 VDC ±25%, 3 A (3.5 A peak)

• Resolution of current values at 1%

• Boost, nominal and holding current separately configurable

• 38.5 kHz PWM frequency

• Integrated motor detection

• 256 microsteps

• Stall detection

• Complete integration in Automation Studio and CNC applications

• 4 inputs, 24 VDC, configurable for ABR incremental encoders

• Function model "Ramp" based on CANopen communication profile DS402

• NetTime timestamp: Position change, trigger time

The stepper motor module is used to control stepper motors with a nominal voltage of 24 to 39 VDC (±25%) at a motor current up to 3 A (3.5 A peak). In addition, this module has 4 digital inputs that can be used as limit switches or encoder inputs.

Due to the individual adjustment of the coil currents, the motor is only operated with the current it actually needs. This simplifies the selection of the available motors and prevents unnecessary heating. Because this affects energy consumption and thermal load, the effects are positive on the service life of the complete system. Complete flexibility is achieved through the use of independently adjustable holding, maximum and nominal current values. The current for microsteps is automatically adjusted to the configured current values.

The automatic motor identification system is an enormous help during standstills. The stepper motor modules can identify the connected motors using their coil characteristics and generate feedback in the form of an analog value. This makes it possible to detect not only wiring errors, but also incorrect motor types being used mistakenly. "Stall detection" is integrated to analyze the motor load. Detection of the stall is defined via a configurable threshold. This allows an overload or motor standstill to be detected precisely in many different types of applications.

Accessories

Required accessories (order separately)

X20BM31	Bus modules — Bus module for double-width I/O modules; The internal I/O supply is interconnected The bus module serves as a basis for all double-width X2…
X20TB12	Terminal blocks — Tool-free wiring with push-in technology; Simple wire release using lever; Ability to label each terminal; Plain text labeling also possibl…

Specifications

Short description

I/O module

1 full bridge for controlling stepper motors

General information

Diagnostics – Module run/error	Yes, using LED status indicator and software
Diagnostics – Output	Yes, using LED status indicator and software
Diagnostics – I/O power supply	Yes, using software
Power consumption – 24 VDC	2.45 W
Power consumption – 48 VDC	3.15 W
Power consumption – Bus	0.01 W
Power consumption – Internal I/O	-
Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – CRA (Cyber Resilience Act)	In preparation
Certifications – ATEX	Zone 2, II 3G Ex nA nC IIA T5 Gc; IP20, Ta (see X20 user's manual); FTZÚ 09 ATEX 0083X
Certifications – UL	cURus E225616; Power conversion equipment
Certifications – HazLoc	cCSAus 244665; Process control equipment; for hazardous locations; Class I, Division 2, Groups ABCD, T5
Certifications – KC	Yes
B&R ID code	0x2682
Status indicators	I/O function per channel, operating state, module status
Additional power dissipation caused by actuators (resistive) [W]	-

Motor output stage

Module power supply – Supply	External
Module power supply – Fuse	Required line fuse: Max. 10 A, slow-blow
Quantity	1
Type	2-phase bipolar stepper motor (full bridge)
Nominal voltage	24 to 39 VDC ±25% " data-placement="top" data-html="true" data-container="body" data-content="The tolerance value is composed of the voltage tolerances and permissible total AC voltage component with a peak value of 5% of the rated voltage.">
Nominal current	3 A
Maximum current	3.5 A for 2 s (after a recovery time of at least 10 s at maximum 3 A)
Controller frequency	38.4 kHz
DC bus capacitance	100 µF
Step resolution	Max. 256 microsteps per step
Output protection	No reverse polarity protection of the supply voltage

Digital inputs

Input filter – Hardware	<5 µs
Input filter – Software	-
Switching threshold – Low	<5 VDC
Switching threshold – High	>15 VDC
Quantity	4
Nominal voltage	24 VDC
Input circuit	Sink
Connection type	1-wire connections
Input resistance	Typ. 18.2 kΩ
Additional functions	1x ABR incremental encoder

ABR incremental encoder

Quantity	1
Encoder inputs	24 V, asymmetrical
Counter size	16-bit
Input frequency	Max. 50 kHz
Evaluation	4x

Electrical properties

Electrical isolation

Channel isolated from bus; Channel not isolated from I/O power supply

Operating conditions

Mounting orientation – Horizontal	Yes
Installation elevation above sea level – 0 to 2000 m	No limitation
Installation elevation above sea level – >2000 m	Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529	IP20

Ambient conditions

Temperature – Horizontal mounting orientation	0 to 50°C
Temperature – Vertical mounting orientation	Not permitted
Temperature – Derating	See section "Derating".
Temperature – Storage	-25 to 70°C
Temperature – Transport	-25 to 70°C
Relative humidity – Operation	5 to 95%, non-condensing
Relative humidity – Storage	5 to 95%, non-condensing
Relative humidity – Transport	5 to 95%, non-condensing

Mechanical properties

Note	Order 1x terminal block X20TB12 separately.; Order 1x bus module X20BM31 separately.
Pitch	25 +0.2 mm

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

Data sheet X20SM1436	PDF · 2 MB · 1.76 (07/27/2026) - EN
X20 Package leaflet ATEX/CSA	PDF · 2 MB · 1.4 (09/17/2024)
X20 System User´s Manual	PDF · 50 MB · 4.40 (03/10/2026) - EN

CAD & dimension drawings

3D File X20 Double IO Slice

ZIP · 1,002 KB · 1.00 (05/29/2017)

Certificates (9)

2226379 CSA Certificate of Compliance X20 X67	PDF · 205 KB · 2026_09 (09/21/2026)
Compass Safe Distance Certificate - X20	PDF · 1 MB · 1.21 (08/23/2021)
EU Data Act - X20 IO - Connected Product Information Notice	PDF · 92 KB · 1.00 (09/30/2025)
EU Declaration ATEX X20	PDF · 218 KB · 2023-07 (09/05/2023)
EU Declaration of conformity PLC X20	PDF · 169 KB · 2021/10 (11/08/2021)
FTZU 09 ATEX 0083X	PDF · 771 KB · 3.00 (10/12/2021)
Safe cutoff of potential groups	PDF · 211 KB · 2.4 (11/29/2023) - EN
UK Declaration PLC X20	PDF · 151 KB · 2024-01 (01/18/2024)
X20, X67 KC certificates	PDF · 7 MB · 2.00 (08/17/2026)