B&R X67SM2436
2 stepper motors, 24 to 38.5 VDC ±25%, 3 A (5 A peak) Current value resolution of 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 2x 3 inputs, 24 VDC, configurable for ABR incremental encoders Integrated short-circuit proof encoder power supply Function model 3 ("Ramp") based on CANopen communication profile DS402 NetTime timestamp: Position change, trigger time The stepper motor module is used to control up to 2 stepper motors with a nominal voltage of 24 to 38.5 VDC ±25% at a motor current up to 3 A (5 A peak). In addition, this module has 6 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, boost 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. A stall detection mechanism 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.
Lifecycle & replacement
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Technical specifications
Short description
| I/O module | 2 full bridges for controlling stepper motors |
General information
| Diagnostics / I/O power supply | Yes, using LED status indicator and software |
| Diagnostics / Motor status | Yes, using LED status indicator and software |
| Connection type / X2X Link | M12, B-coded |
| Connection type / Inputs/Outputs | 4x M12, A-coded |
| Connection type / I/O power supply | M8, 4-pin |
| Power consumption / Internal I/O / At 24 VDC | 1.7 W |
| Power consumption / Internal I/O / At 48 VDC | 2 W |
| Power consumption / X2X Link power supply | 0.75 W |
| Certifications / CE | Yes |
| Certifications / UKCA | Yes |
| Certifications / CRA (Cyber Resilience Act) | In preparation |
| Certifications / ATEX | Zone 2, II 3G Ex nA IIA T5 Gc IP67, Ta = 0 - Max. 60°C TÜV 05 ATEX 7201X |
| Certifications / UL | cULus E115267 Industrial control 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 | 0x1DCB |
| Status indicators | I/O function per channel, supply voltage, bus function |
Motor output stage
| Quantity | 2 |
| Type | 2-phase bipolar stepper motor (full bridge) |
| Nominal voltage | 24 to 38.5 VDC ±25% |
| Nominal current | 3 A |
| Max. current/motor | 5 A for 2 s (after a recovery time of at least 10 s at maximum 3 A) |
| Max. current/module | 8 A |
| Controller frequency | 38.5 kHz |
| DC bus capacitance | 200 µF |
| Step resolution | 256 microsteps per full step |
I/O power supply
| Power consumption / Sensor power supply | Max. 0.96 W |
| Integrated protective function / Reverse polarity protection | No |
| Nominal voltage | 24 to 38.5 VDC ±25% |
Digital inputs
| Input filter / Hardware | <5 µs |
| Input filter / Software | - |
| Switching threshold / Low | <5 VDC |
| Switching threshold / High | >15 VDC |
| Quantity | 6 |
| Nominal voltage | 24 VDC |
| Input characteristics per EN 61131-2 | Type 1 |
| Input voltage | 24 VDC -15% / +20% |
| Input current at 24 VDC | Approx. 4 mA |
| Input circuit | Sink |
| Input resistance | Typ. 5.4 kΩ |
| Additional functions | 2x ABR incremental encoder |
| Insulation voltage between channel and bus | 500 Veff |
ABR incremental encoder
| Quantity | 2 |
| Encoder inputs | 24 V, asymmetrical |
| Counter size | 16-bit |
| Input frequency | Max. 50 kHz |
| Evaluation | 4x |
| Encoder power supply | Module-internal, max. 20 mA per encoder |
| Signal form | Square wave pulse |
| Counter 1 | Inputs 1 to 3 |
| Counter 2 | Inputs 4 to 6 |
| Counter frequency | Max. 200 kHz |
Sensor power supply
| Supply voltage / Min. voltage at 20 mA / group | 20 VDC |
| Supply voltage | 24 VDC |
| Short-circuit proof | Yes |
Electrical properties
| Electrical isolation | Channel isolated from bus Channel not isolated from channel |
Operating conditions
| Mounting orientation / Any | 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 | IP67 |
Ambient conditions
| Temperature / Operation | 0 to 50°C |
| Temperature / Derating | - |
| Temperature / Storage | -25 to 85°C |
| Temperature / Transport | -25 to 85°C |
Mechanical properties
| Dimensions / Width | 53 mm |
| Dimensions / Height | 85 mm |
| Dimensions / Depth | 42 mm |
| Torque for connections / M8 | Max. 0.4 Nm |
| Torque for connections / M12 | Max. 0.6 Nm |
| Weight | 195 g |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Datasheets
Manuals
3D CAD models
ECAD / EPLAN
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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.