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Short description
I/O module X67 2-channel stepper motor module 4 A, 48 VDC, 6 inputs, sink
General information
B&R ID code 0xF3EC
Status indicators I/O function per channel, supply voltage, bus function
Module run/error Yes, using LED status indicator and software
Open circuit Yes, using LED status indicator and software
I/O power supply Yes, using LED status indicator and software
Motor status Yes, using LED status indicator and software
Connection type
X2X Link M12, B-coded
Inputs/Outputs 4x M12, A-coded
I/O power supply M8, 4-pin
Power consumption
X2X Link power supply 0.75 W
Internal I/O
At 48 VDC Max. 2 W
CE Yes
Motor bridge - Power unit
Quantity 2
Type Stepper motor (full-bridge)
Nominal voltage 24 to 48 VDC ±25%
Nominal current 4 A
Max. current/motor 8 A for 1 s (after a recovery time of at least 9 s at maximum 3.27 A)
Max. current/module 8 A
Step resolution 256 microsteps per full step
I/O power supply
Nominal voltage 24 to 48 VDC ±25%
Integrated protection
Reverse polarity protection Yes
Digital inputs
Quantity 6
Nominal voltage 24 VDC
Input characteristics per EN 61131-2 Type 1
Input voltage 24 VDC ±20%
Input current at 24 VDC Approx. 1.8 mA
Input circuit Sink
Input filter
Hardware <5 µs
Software -
Input resistance Typ. 15 kΩ
Additional functions 2x ABR incremental encoder
Open-circuit detection
Switching threshold
Low <5 VDC
High >15 VDC
Insulation voltage between channel and bus 500 Veff
ABR incremental encoder
Quantity 2
Encoder inputs 24 V, asymmetrical
Counter size 16-bit
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. 50 kHz
Sensor power supply
Supply voltage 24 VDC
Short-circuit proof Yes
Supply voltage
Min. voltage at 20 mA / group 21 VDC
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
>2000 m Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529 IP67
Ambient conditions
Operation -25 to 60°C
Derating -
Storage -40 to 85°C
Transport -40 to 85°C
Mechanical properties
Width 53 mm
Height 85 mm
Depth 42 mm
Weight 195
Torque for connections
M8 Max. 0.4 Nm
M12 Max. 0.6 Nm
Material number:
  • 2 stepper motors, 24 to 48 VDC ±25%, 4 A (8 A peak)
  • Resolution of current values at 1%
  • Boost, nominal and holding current separately configurable
  • Sensorless, load-dependent current control
  • Integrated motor detection
  • 256 microsteps per step
  • Stall detection
  • Complete integration in Automation Studio and CNC applications
  • 6 inputs, 24 VDC, configurable for ABR incremental encoders
  • Open-circuit detection for 2 push-pull encoders
  • Input ramp limit at max. 12.5 A
  • 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 48 VDC (±25%) at a motor current up to 4 A (8 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, maximum and nominal current values. The current for microsteps is automatically adjusted to the configured current values.

In addition, the module contains a sensorless, load-dependent current control. Depending on the operating situation and load, the module controls the current downwards. Energy savings up to 75% are possible in this way.

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.

Automation Studio HW Upgrades Version (Date) Download
V4.0 HW Upgrade (X67SM2446-1) EXE / 2 MB
Documentation Version (Date) Download
Data sheet X67SM2446-1 PDF / 1 MB
E-CAD (Electro or EPLAN Templates) Version (Date) Download
Makro-/Artikeldaten 4.0.0 (X67SM2446-1) EXE / 1 MB
X67 EPLAN P8 from V2.4 EXE / 105 MB

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