IAC

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.

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Technical specifications

Short description
I/O module2 full bridges for controlling stepper motors
General information
Diagnostics / I/O power supplyYes, using LED status indicator and software
Diagnostics / Motor statusYes, using LED status indicator and software
Connection type / X2X LinkM12, B-coded
Connection type / Inputs/Outputs4x M12, A-coded
Connection type / I/O power supplyM8, 4-pin
Power consumption / Internal I/O / At 24 VDC1.7 W
Power consumption / Internal I/O / At 48 VDC2 W
Power consumption / X2X Link power supply0.75 W
Certifications / CEYes
Certifications / UKCAYes
Certifications / CRA (Cyber Resilience Act)In preparation
Certifications / ATEXZone 2, II 3G Ex nA IIA T5 Gc IP67, Ta = 0 - Max. 60°C TÜV 05 ATEX 7201X
Certifications / ULcULus E115267 Industrial control equipment
Certifications / HazLoccCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5
Certifications / KCYes
B&R ID code0x1DCB
Status indicatorsI/O function per channel, supply voltage, bus function
Motor output stage
Quantity2
Type2-phase bipolar stepper motor (full bridge)
Nominal voltage24 to 38.5 VDC ±25%
Nominal current3 A
Max. current/motor5 A for 2 s (after a recovery time of at least 10 s at maximum 3 A)
Max. current/module8 A
Controller frequency38.5 kHz
DC bus capacitance200 µF
Step resolution256 microsteps per full step
I/O power supply
Power consumption / Sensor power supplyMax. 0.96 W
Integrated protective function / Reverse polarity protectionNo
Nominal voltage24 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
Quantity6
Nominal voltage24 VDC
Input characteristics per EN 61131-2Type 1
Input voltage24 VDC -15% / +20%
Input current at 24 VDCApprox. 4 mA
Input circuitSink
Input resistanceTyp. 5.4 kΩ
Additional functions2x ABR incremental encoder
Insulation voltage between channel and bus500 Veff
ABR incremental encoder
Quantity2
Encoder inputs24 V, asymmetrical
Counter size16-bit
Input frequencyMax. 50 kHz
Evaluation4x
Encoder power supplyModule-internal, max. 20 mA per encoder
Signal formSquare wave pulse
Counter 1Inputs 1 to 3
Counter 2Inputs 4 to 6
Counter frequencyMax. 200 kHz
Sensor power supply
Supply voltage / Min. voltage at 20 mA / group20 VDC
Supply voltage24 VDC
Short-circuit proofYes
Electrical properties
Electrical isolationChannel isolated from bus Channel not isolated from channel
Operating conditions
Mounting orientation / AnyYes
Installation elevation above sea level / 0 to 2000 mNo limitation
Installation elevation above sea level / >2000 mReduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529IP67
Ambient conditions
Temperature / Operation0 to 50°C
Temperature / Derating-
Temperature / Storage-25 to 85°C
Temperature / Transport-25 to 85°C
Mechanical properties
Dimensions / Width53 mm
Dimensions / Height85 mm
Dimensions / Depth42 mm
Torque for connections / M8Max. 0.4 Nm
Torque for connections / M12Max. 0.6 Nm
Weight195 g

Documentation & CAD

Files hosted by B&R Industrial Automation; links open the official download page.

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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.