STO - Safe Torque Off (Safe torque off)
Interruption of the power supply to the drive according to EN 61800-5-2. This function ensures that the drive can no longer deliver any torque.
Serie smartServo BL 4000-C
Servoregler
3 x 230…480V AC power supply
I/O communication & microSD slot LED status indicator
& seven-segment status display
Digital and analog I/Os
8x digital in, 2x analog in,
3x digital out Closed on all sides,
EMC-optimized housing Parameterization interfaces
USB 2.0 & LAN 2x real-time Ethernet interface CANopen interface Motor connection, multi-encoder,
Resolver & motor brake interface
I/O communication & microSD slot LED status indicator
& seven-segment status display
Digital and analog I/Os
8x digital in, 2x analog in,
3x digital out Closed on all sides,
EMC-optimized housing Parameterization interfaces
USB 2.0 & LAN 2x real-time Ethernet interface CANopen interface Motor connection, multi-encoder,
Resolver & motor brake interface
Compact & powerful
The BL 4308-C is an actively cooled servo drive for cabinet installation with the highest power density – ideal for continuous operation under demanding conditions. Flexible interfaces and easy parameterization enable quick integration into a wide range of automation environments.
USB and Ethernet
as parameterization interface
Fieldbus on board
EtherCAT, PROFINET, CANopen, PowerLink, Modbus
Universal encoder evaluation
HIPERFACE®, HIPERFACE DSL®, EnDat 2.2, resolver, analog and digital incremental encoders, BISS, FA-Coder, Nikon A-Format
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-C servo controllers come equipped as standard with modern safety functions such as STO and SS1. These functions ensure that safety-related requirements can be met directly within the drive—without the need for external safety modules or additional wiring. This not only increases machine safety but also significantly reduces planning and installation effort. Users benefit from a reliable and cost-effective safety concept.
SS1 - Safe Stop 1 (Safe stop 1)
The drive is autonomously decelerated to a standstill within a defined time using a defined braking ramp, after which the power supply is safely switched off. SS1, Type C is supported.
Technology functions on board
Numerous integrated software functions make the smartServo BL 4000-C servo controllers true all-rounders in drive technology.
The BL 4000-C servo controllers not only support a wide range of motor types and all common position encoders directly, but can also be flexibly adapted to a variety of application tasks through simple parameterization of the integrated technology functions. The precise and highly accurate evaluation of external signals within the drive ensures the shortest possible cycle times.
Positioning
Whether linear, jerk-free, or torque-limited: with the integrated positioning control, any motion task can be easily implemented.
Path program/sequence
All 256 position sets can be linked together to perform complex positioning tasks without a controller. Conditional branching is also possible via digital inputs.
Flying saw
By integrating the flying saw function directly into the drive, not only short cycle times but also extremely high accuracies can be achieved.
Electronic gearbox/synchronization
The position- or speed-synchronous movement of multiple drives with a variable gear ratio can be quickly parameterized and made ready for operation using a software assistant.
Linear motors
Special methods for determining the commutation position and corresponding monitoring functions enable the operation of linear motors without commutation information.
Rotary table
Several rotary axis modes are available for rotary table applications. These can be combined with both the cam profile and the electronic gearbox.
Cam switch
Position trigger, rotor position trigger, and cam switch functions in combination with the cam profile can be easily parameterized and assigned to digital outputs.
Integrated EMC protection
Comprehensive EMC protection through integrated filter technology directly in the device and on all interfaces.
Technical data
Compact overview
All relevant key data of the BL 4000-C servo controllers clearly summarized in the PDF: power range, supply voltage, interfaces, dimensions, and environmental conditions. For quick technical assessment and reliable integration into your system.
Key specifications of the BL 4308-C:
- 3 x 230…480 VAC three-phase servo controller
- Rated output current: 8 A
- Maximum output current for 2 s: 24 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.
![[Translate to English:] Ethernet](/fileadmin/user_upload/Bilder/Produkte/Antriebstechnik/smartservo-BL/Ethernet.png "[Translate to English:] Ethernet")
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 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 demanding 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-free 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 be connected as well. 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 BL 4000-C servo controllers for automation technology
The BL 4000-C servo controllers are compact cabinet-mounted servo controllers designed for high-performance and precise applications.
Thanks to integrated cooling, they achieve a high power density and are particularly suitable for reliable operation under the most demanding load scenarios. With a wide range of communication and encoder interfaces, the controller can be integrated into various configurations — offering 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 meeting their challenges.
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