STO - Safe Torque Off (Safe Torque Off)
Interruption of the energy supply to the drive in accordance with EN 61800-5-2. This function ensures that the drive can no longer apply energy.
Serie smartServo BL 4000-M/D
Dezentrale Servoregler
Digital and analog IOs
8x digital in, 1x analog in,
2x digital out, 1x analog out STO and 24V DC supply
Supply control voltage
and Safe Torque Off 240V AC power supply
Single-phase power supply Real-time Ethernet
Ethernet, EtherCAT,
PROFIBUS/PROFINET,
PowerLink Real-time Ethernet (CAN variant)
CANopen USB connection
USB 2.0 parameterization interface
with cover cap LED status display Sophisticated lightweight housing
Depending on the sealing concept
Protection class IP54 to IP67
8x digital in, 1x analog in,
2x digital out, 1x analog out STO and 24V DC supply
Supply control voltage
and Safe Torque Off 240V AC power supply
Single-phase power supply Real-time Ethernet
Ethernet, EtherCAT,
PROFIBUS/PROFINET,
PowerLink Real-time Ethernet (CAN variant)
CANopen USB connection
USB 2.0 parameterization interface
with cover cap LED status display Sophisticated lightweight housing
Depending on the sealing concept
Protection class IP54 to IP67
Reduced control cabinet volume
The servo controller integrated directly on the motor saves valuable space in the control cabinet. Complex cabling between the motor and servo controller is no longer necessary, as the control takes place directly on the motor.
USB and Ethernet
as parameterization interface
Fieldbus on board
EtherCAT, PROFINET, PowerLink, Modbus, Optional CANopen
Universal encoder evaluation
HIPERFACE®, HIPERFACE DSL®, EnDat 2.2, resolver, analog and digital incremental encoders, BISS
Metronix ServoCommander
With the Metronix ServoCommander, drives can be easily parameterized and monitored on a PC.
Safety functions
Integrated safety as standard
The BL 4000-M/D servo drives are equipped with modern safety functions such as STO and SS1 as standard. These functions ensure that safety-related requirements can be met directly in the drive - without any external safety modules or additional wiring. This not only increases the safety of the machine, but also significantly reduces planning and installation costs. Users benefit from a reliable and economical safety concept.
SS1 - Safe Stop 1 (Safe Stop 1)
The drive is braked autonomously to a standstill within a defined time using a defined braking ramp and then the energy supply is safely switched off. SS1, type C is supported.
Technology functions on board
Numerous integrated software functions make the smartServo BL 4000-M/D servo controllers real all-rounders in drive technology.
The BL 4000-M/D servo controllers not only directly support numerous motor types and all common position encoders, but can also be adapted extremely flexibly to a wide range of application tasks via simple parameterization of the integrated technology functions. The precise and highly accurate evaluation of external signals in the drive enables the shortest possible cycle times to be achieved.
Positioning
Whether linear, jerk-free or torque-limited: The built-in positioning control makes it easy to implement any movement task.
Path program/chaining
All 256 position sets can be linked together to solve complex positioning tasks without a controller. Situation-dependent branching is also possible via digital inputs.
Flying saw
By integrating the flying saw into the drive, not only short cycle times but also extremely high accuracies can be achieved.
Electronic gearbox/synchronization
The position- or speed-synchronized movement of several drives with variable gear ratios is quickly parameterized and ready for use using the software wizard.
Linear motors
Special methods for determining the commutation position and corresponding monitoring functions enable linear motors to be operated without commutation information.
Rotary table
Several rotary axis modes are available for use in rotary table applications. These can be combined with both the cam disk and the electronic gearbox.
Switching cams
Position triggers, rotor position triggers and switching cams in conjunction with the cam plate can be easily parameterized and assigned to digital outputs.
Integrated EMC filters
All-round EMC protection thanks to integrated filter technology directly in the device and at all interfaces.
Technical data
Kompakt auf einen Blick
Alle relevanten Kenndaten der BL 4000-M/D Servoregler übersichtlich im PDF zusammengefasst: Leistungsbereich, Versorgungsspannung, Schnittstellen, Abmessungen und Umgebungsbedingungen. Für eine schnelle technische Einordnung – und die sichere Integration in Ihr System.
Die wichtigsten Kenndaten des BL 4104-M:
- 230VDC einphasiger Servoregler
- Nennausgangsstrom: 4 A
- Max. Ausgangsstrom für 0,5 s: 12 A
Technical data | Download
Product brochure | Download
Connectivity options
Universal interface variety
CANopen
Always on board is the field-proven CANopen fieldbus system with the CiA 402 drive profile. With the operating modes Profile Torque Mode, Profile Velocity Mode, Profile Position Mode, Homing Mode, and Interpolated Position Mode, the servo controller can be used in a wide variety of applications. Several hundred parameters enable complete configuration of the servo controller via CANopen.
Ethernet
The integrated Ethernet interface can be used via a UDP/IP connection, for example, for remote maintenance or as a fieldbus connection. This allows the transmission of setpoints and actual values, error analysis, loading and saving of parameter sets, adjusting individual parameters, and displaying values using the oscilloscope function.
EtherCAT
All smartServo BL 4000-C devices feature the Ethernet-based EtherCAT fieldbus system. With the CoE (CANopen over EtherCAT) application protocol, all operating modes and parameters of CANopen can also be used under EtherCAT. In multi-axis applications, highly synchronized movements are achieved in the “Cyclic Synchronous Position” mode in combination with Distributed Clocks (DC), even at high cycle times, as the servo controllers synchronize precisely to the external clock.
PROFINET
The Ethernet-based PROFINET fieldbus system is also already fundamentally integrated. Based on PROFIdrive, the Metronix-specific application profile enables easy access to all functions of the servo controller. Ready-to-use function blocks and a sample project make integrating the smartServo into the control system a real breeze. The plain-text display of error messages in the control system also greatly simplifies initial commissioning, allowing the machine or system to be ready for operation more quickly.
PowerLink
PowerLink is a high-performance, real-time capable Ethernet communication protocol that enables deterministic and precise data transmission — essential for automation applications with high real-time requirements. Compared to other fieldbus systems, PowerLink stands out with particularly short cycle times combined with a high data transfer rate, supports flexible network topologies, and is based on an open, license-free standard.
Modbus
Modbus is characterized by simple implementation, broad compatibility, and robust functionality. Even in modern networks, Modbus continues to be widely used, as many existing devices and systems are based on it.
Encoder interfaces
EnDat 2.2
Heidenhain encoders with EnDat interface feature a serial communication channel through which the servo controller communicates with the encoder. All relevant information from the encoder’s electronic nameplate is read out via this channel, eliminating the need for manual parameterization. If the encoder used also has an EEPROM, motor information can be stored in the encoder, allowing the motor to be used directly with another servo controller. The smartServo BL 4000-C supports EnDat 2.2 encoders as both singleturn and multiturn versions.
HIPERFACE®
Just like Heidenhain encoders, HIPERFACE encoders feature a communication channel through which the servo controller communicates with the encoder. All relevant information is also read out from the encoder, and motor information can likewise be stored in the encoder. All common HIPERFACE singleturn and multiturn encoders are supported.
HIPERFACE DSL®
With the single-cable technology HIPERFACE DSL®, the encoder signal is transmitted digitally within the motor cable. This minimizes the number of connection lines required between the servo controller and the motor. Naturally, all features of the HIPERFACE encoders (electronic nameplate, data storage in the encoder) are also available with HIPERFACE DSL®.
BiSS Interface
An open, digital sensor interface protocol for real-time capable serial communication. BiSS enables high transmission speed, flexible parameterization, and reliable, interference-resistant data transfer. This provides our customers with a future-proof solution.
Analoge und digitale Inkrementalgeber
The universal encoder interface supports a wide variety of different encoders: both analog 1Vss signals and digital incremental signals, including reference track or zero pulse, are supported. For commutation, digital Hall signals can also be evaluated, and a fault signal input can additionally be connected. One of the encoder inputs can also be used as a pulse-direction input or forward/reverse counting input.
FA-CODER® und Nikon A-Format
Numerous encoders from the two Japanese manufacturers Nikon and Tamagawa Seiki are also directly supported by the smartServo BL 4000-C.
Resolver
Of course, the resolver is also supported by the smartServo BL 4000-C as a robust and cost-effective position sensor.
Customer benefits of the decentralized smartServo BL 4000-M/D servo controllers for automation technology and AGVs
The BL 4000-M/D servo controllers combine high-performance drive technology with a decentralized design, offering clear advantages for modern automation solutions. Since the servo controller is integrated directly on the motor, long cable runs and large control cabinet volumes are eliminated. This saves space, reduces installation effort, and enables more compact machine and system concepts.
Particularly in Automated Guided Vehicles (AGVs), the BL 4000-M/D servo controllers fully demonstrate their strengths: decentralized installation on the vehicle simplifies wiring, saves weight, and creates more space for the battery and payload. Thanks to modern interfaces such as PowerLink, EtherCAT, or PROFINET, the drive can be seamlessly integrated into existing control networks — with high real-time capability and precise synchronization.
Additional safety is provided by integrated functions such as STO and SS1, while the intuitive ServoCommander parameterization software significantly simplifies commissioning and maintenance. This allows users to benefit from a flexible, reliable, and future-proof drive solution — ideal for the growing use in intelligent transport and automation systems.
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