The Magna-Power SLx4-32-125 is an SLx series programmable DC power supply with the following characteristics:

• Output power: 4kW
• Maximum voltage: 32Vdc
• Maximum current: 125Adc

Building on over 40 years of power supply innovation and with over 26,500 different model configurations, the SLx Series is Magna-Power’s most versatile programmable DC power supply series ever created.

The SLx Series offers models at 6 different power levels, with a highly granular range of voltages and currents. With industry-leading power density, rugged current-fed power processing, and the state-of-the-art MagnaLINK distributed DSP digital control architecture, the SLx Series meets the long-term DC power requirements of research & development, industrial automation, and process control applications.

All MagnaDC programmable DC power supplies utilize high-frequency IGBT- and MOSFET-based power processing in a current-fed topology. This topology adds an additional stage over the conventional voltage-fed topology for enhanced control and system protection, ensuring that even under a fault condition, the power supply will self-protect.

Due to the self-protecting characteristics of this topology, the possibility of fast-rising current spikes and magnetic core saturation is eliminated. This topology coupled with state-of-the-art Silicon Carbide (SiC) power semiconductors enables the SLx Series to deliver class-leading power density, reliability, and efficiency with continuous full-power operation up to 50°C ambient.

Prioritizing brightness and reliability, the SLx Series features of a hybrid display with bright green segments for voltage and current output and a multi-line display for power measurement, settings configuration, and status messages.

A black-anodized machined aluminum control knob enables precise dialing of control set points, while a 10-digit key and arrow buttons provide digital set point inputs with 16-bit precision. In addition, a dedicated Lock button enables users to lock out the front panel to prevent unwanted changes from the front panel. Easily connect a computer to the SLx Series without going behind it by using the front panel USB port; a rear-mounted USB port is also provided.

Over 26,500+ configurations of SLx Series models are available, based on AC input voltage, DC output ratings, and integrated options. The following model ordering guide and models table provide the available SLx Series ratings and model configuration guidance.

CANopen is a high-level communication protocol that is widely used in industrial automation and embedded systems. It is based on the Controller Area Network (CAN) bus, a robust and efficient serial communication bus commonly found in automotive and industrial applications.

CANopen defines a set of communication protocols and application layer services built on top of the CAN physical layer. It provides a standardized way for devices to communicate and exchange data. CANopen devices communicate using an Object Dictionary, which defines the data structure and parameters that can be exchanged between devices. This dictionary is essential for device configuration and data exchange. It includes objects like PDOs (Process Data Objects) for real-time data exchange and SDOs (Service Data Objects) for parameterization and configuration. Each CANopen device on the network has a unique Node ID, which allows devices to address each other for communication. This addressing scheme simplifies the setup of multi-device networks.

This option provides support for the product’s full command set over CAN with extensive documentation detailing both connection setup and commands. A D-Sub 9-pin male connector is provided along with a Magna-Power developed CANopen Electronic Data Sheet (EDS), used by network configuration software tools to help set up devices on the network.

EtherCAT is a real-time Ethernet network protocol developed by Beckhoff Automation for communicating among multiple nodes. EtherCAT networks are formed using CAT cabling, where the master and nodes can be directly wired together through RJ-45 ports, in a daisy chain configuration, without need for external networking switches. 

The protocol is standardized in IEC 61158 and is popular for demanding high-speed communication requirements in automation technology. As a result of its flexibility and scalability, EtherCAT can be found in a wide range of applications, including factory automation, motion control, robotics, and more.

This option provides support for the EtherCAT protocol and Ethernet over EtherCAT. The product’s full command set is supported with extensive documentation detailing both connection setup and commands. Dual RJ-45 connectors are provided with bi-color activity and error LEDs.

The EtherNet/IP standard (EIP) is the application layer protocol for industrial automation developed by four independent groups: ODVA, the Industrial Open Ethernet Association (IOANA), Control Net International (CI), and the Industrial Ethernet Association (IEA). EtherNet/IP provides wide-ranging, comprehensive, certifiable standard in the public domain that is suitable to a wide variety of automation devices.

EtherNet/IP uses a client-server model, where the client sends requests to the server, and the server responds with the requested information. The information is transmitted in the form of messages, which are divided into two types: Explicit and Implicit messages.

Magna-Power has designed its EtherNet/IP (+EIP) option to allow for seamless integration into Allen Bardley, Schneider Electric, and Omron PLCs. The following are some of the key features of Magna-Power’s +EIP option:

• Support for the product’s full command set
• Extensive HTML- and PDF-based documentation, detailing connection setup and commands
• Dual RJ-45 connectors with bi-color activity and error LEDs
• Magna-Power developed an electronic data sheet (EDS) for device discovery and network setup
• Hosted an EtherNet/IP web page for easily accessing local network settings, device parameters, and operation status

Certified to the LXI Standard (Class C), the +LXI option allows the product to be fully controlled over a traditional computer network with a fully integrated TCP/IP Ethernet interface.

LXI is an instrumentation platform based on industry-standard Ethernet technology designed to provide modularity, flexibility, and performance to small- and medium-sized systems.

All of the product’s standard SCPI commands are supported over the +LXI option, along with all provided software and drivers. The LXI TCP/IP Ethernet interface also support mDNS, a protocol that allows devices to perform DNS operation on a local link, even without the presence of an administered DNS server.

LXI’s advantages are exemplified in its compact, flexible package providing high-speed I/O and reliable measurements. The Magna-Power Electronics LXI TCP/IP Ethernet option includes an embedded web-server, allowing configuration of static or dynamic IP address assignment.

Note: only the SCPI command protocol is available when the LXI TCP/IP Ethernet interface is installed. Modbus communication protocol is not available through any interface when the LXI TCP/IP Ethernet interface is installed.

Modbus-TCP is a communication protocol that enables communication between industrial devices over Ethernet networks. It is an extension of the Modbus protocol, which was originally developed in the 1970s for communication between programmable logic controllers (PLCs) and other devices. Modbus-TCP uses the same protocol as Modbus, but it is transmitted over Ethernet rather than serial communication.

Modbus-TCP is a widely used protocol in industrial control and automation applications because it is open and simple to implement. It supports a wide range of devices, including PLCs, sensors, and actuators. Modbus-TCP provides fast and reliable communication, with data rates of up to 100 Mbps. It also supports multiple connections and can handle up to 65,535 devices on a single network.

This option provides support for the product’s full Modbus command set over ModbusTCP with extensive documentation detailing both connection setup and commands. Dual RJ-45 connectors are provided with bi-color activity and error LEDs.

PROFINET is a widely used industrial Ethernet protocol for communication between automation systems and devices in manufacturing and process industries. It was developed by PROFIBUS & PROFINET International (PI), an organization that oversees the development and maintenance of the protocol. PROFINET is used mainly by Siemens PLCs.

PROFINET is widely adopted by many leading manufacturers and system integrators in different industries due to its reliability, flexibility, and interoperability. It has a large ecosystem of compatible products and tools and is supported by a global network of PI-certified experts and service providers.

This option provides support for the product’s full command set over PROFINET with extensive documentation detailing both connection setup and commands. Dual RJ-45 connectors are provided with bi-color activity and error LEDs.

The Ruggedized Option (+RUG) provides additional mechanical security for large power components and sub-assemblies within SLx Series products. Board mounted through components, such as capacitors, inductors, and daughter boards are staked using UV-cured epoxy in accordance with the recommendations from relevant IPC-A-610G standards.

SLx Series units with the Ruggedized Option have been independently tested to comply with the following MIL-STD-810G shock and vibration specifications:

• MIL-STD-810G CHG1 Method 516.7 Functional Shock, Procedure I; which subjects the product to 40G, 11 ms terminal saw tooth pulse; three shocks in each direction along three mutually perpendicular axes
• MIL-STD-810G CHG1 Method 514.7 Vibration; which subjects the product to two hours of vibration per axis along three mutually perpendicular axes

In addition to the specifications listed above, the SLx Series units with the Ruggedized Option have also been independently tested to comply with RTCA/DO-160G Section 8.0 Vibration, Profile B4 with its associated total energy of 2.2 Grms for equipment installed in Fixed Wing aircrafts with Turbojet or Turbofan engines.

All products with the Ruggedized Option maintain ambient operating temperatures from -25°C to 50°C and storage temperatures from -35°C to +85°C.