EA Elektro Automatik PSI 9750-04 2U, 750V, 4A, 1000W alimentatore da laboratorio

EA Elektro Automatik PSI 9750-04 2U, 750V, 4A, 1000W alimentatore da laboratorio


- Wide input voltage range 90...264 V with active PFC h High efficiency up to 93%
- Output power ratings: 0...1000 W up to 0...3000 W
- Output voltages: 0...40 V up to 0...750 V
- Output currents: 0...4 A up to 0...120 A
- Flexible, power regulated output stage
- Various protection circuits (OVP, OCP, OPP, OTP)
- Intuitive TFT touch panel with display for values, status and notifications
- Remote sensing
- Galvanically isolated, analog interface with
   •U / I / P programmable via 0...10 V or 0...5 V
   •U / I monitoring via 0...10 V or 0...5 V
- Integrated true function generator
- Photovoltaic array simulation
- Internal resistance simulation and regulation h Temperature controlled fans for cooling
- 40 V models according to SELV (EN 60950)
- USB port integrated
- EMC according to EN 55022 Class B
- Optional, digital interface modules or alternatively installed IEEE/GPIB port
- SCPI command language supported

The microprocessor controlled laboratory power supplies of series EA-PSI 9000 2U offer a user-friendly, interactive handling concept, along with a remarkable set of standard features, which can facilitate operating them. Configuration of output parameters, supervision features and other settings, as well as the replaceable digital interface modules is smart and comfortable.
The implemented supervision features for all output parameters can help to reduce test equipment and make it almost unnecessary to install external supervision hardware and software. The clear control panel with its two knobs, one pushbutton, two LEDs and the touch panel with colour TFT display for all important values and status enable the user to handle the device easily with a few touches of a finger.
For the integration into semi-automatic and remotely controlled test and automation systems, the devices offer a set of interfaces (analog and digital) on their rear side.

AC input
All units are provided with an active Power Factor Correction circuit and models up to 1.5 kW are suitable for a worldwide usage on a mains supply from 90 VAC up to 264 VAC. With the 1.5 kW models, the output power is automatically reduced to 1 kW if the supply voltage is <150 VAC and with the 3 kW models is reduced to 2.5 kW at <205 VAC.

All models are equipped with a flexible auto-ranging output stage which provides a higher output voltage at lower output current, or a higher output current at lower output voltage, always limited to the max. nominal output power. The maximum power set value is adjustable with these models. Therefore, a wide range of applications can already be covered by the use of just one single unit.

DC output
DC output voltages between 0...40 V and 0...750 V, output currents between 0...4 A and 0...120 A and output powers between 0...1000 W and 0...3000 W are available.
Current, voltage and power can thus be adjusted continuously between 0% and 100%, no matter if manually or remotely controlled (analog or digital).
The output terminal is located on the rear panel.

Protective features
For protection of the equipment connected, it is possible to set an overvoltage protection threshold (OVP), as well as one for overcurrent (OCP) and overpower (OPP).
As soon as one of these thresholds is reached for any reason, the DC output will be immediately shut off and a status signal will be generated on the display and via the interfaces. There is furthermore an overtemperature protection, which will shut off the DC output if the device overheats.

Remote sensing
The standard sensing input can be connected directly to the load in order to compensate for voltage drops along the power cables, up to a certain level. Once the sensing input is connected to the load, the power supply will adjust the output voltage automatically to ensure the accurate required voltage is available at the load.

Display and controls
Set values and actual values of output voltage, output current and output power are clearly represented on the graphic display. The LC display is touch sensitive and can be intuitively used to control all functions of the device with just a finger. Set values of voltage, current, power or resistance (internal resistance simulation) can be adjusted using the rotary knobs or entered directly via a numpad.
To prevent unintentional operations, all operation controls can be locked.

Built-in analog interface
There is a galvanically isolated analog interface terminal, located on the rear of the device. It offers analog inputs to set voltage, current and power from 0...100% through control voltages of 0 V...10 V or 0 V...5 V. To monitor the output voltage and current, there are analog outputs with voltage ranges of 0 V...10 V or 0 V...5 V. Also, several inputs and outputs are available for controlling and monitoring the device status.

Function generator
All models within this series include a true function generator which can generate typical functions, as displayed in the figure below, and apply them to either the output voltage or the output current. The generator can be completely configured and controlled by using the touch panel on the front of the device, or by remote control via one of the digital interfaces.
The predefined functions offer all necessary parameters to the user, such as Y offset, time / frequency or amplitude, for full configuration ability.

Additionally to the standard functions, which are all based upon a so-called arbitrary generator, this base generator is accessi- ble for the creation and execution of complex sets of functions, separated into up to 100 sequences. Those can be used for testing purposes in development and production.
The sequences can be loaded from and saved to a standard USB flash drive via the USB port on the front panel, making it easy to change between different test sequences.
Fictional example of a complex function (40 sequences) as it can be realised with the arbitrary generator. The function can be created on the device or externally and then loaded or saved:

There is furthermore a XY generator, which is used to generate other functions like UI or IU, which are de- fined by the user in form of tables (CSV file) and then loaded from USB drive.
For photovoltaics related tests, a PV curve can be gen- erated and used from user-adjustable key parameters. Even more characteristics can be installed for user
selection by applying future firmware updates.

Presetting of output values
To set output values without a direct reaction to the output condition, the set values are also shown on the display, positioned below the actual values.
With this, the user can preset required values for voltage, current and power. It is either done by using the rotary knobs or by direct input on the touch panel. While rotating the knobs only adjusts a value continuously, value steps can be achieved by direct input.
The five user profiles furthermore enable the user to switch easily between often used set values, just by activating a different user profile.

Supervision features
All models offer supervision features for voltage and current steps. The supervision is configurable to monitor voltage or current over and undershooting. As a reaction, the device can generate a notification of selectable type:
- Signals are displayed only; even if the fault is still active, without affecting the output.
- Warnings remain active and must be acknowledged after the fault is removed.
- Alarms will shut off the output instantly and can also be signalled acoustically.

The single units can be combined into various configurations upon request and in cabinets of various heights, in order to build parallel systems of up to 30 kW total power in, for example, a cabinet of 33 U size.

All models feature a serial master-slave bus by default. It can be used to connect up to 10 units of identical models in parallel operation or even series operation to a bigger system with totals formation of the actual
value of voltage, current and power. The configuration is either completely done on the control panels of the units or via remote control (digital communication interface).

• Isolated digital interface modules for RS232, CANopen, Modbus TCP, Profibus, Profinet/IO, Devicenet or Ethernet. The interface slot is located on the rear panel (standard models only), making it easy for the user to plug in a new interface or to replace an existing one. The interface will be automatically detected by the device and requires no or only little configuration.
• Three-way interface (3W) with a rigid GPIB port installed instead of the default slot for retrofittable interface modules

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  • Visualizzazioni: 5351
  • Marca: EA Elektro Automatik
  • Codice Prodotto: PSI 9750-04 2U
  • MPN: 06230308
  • Garanzia: 2 anni

Tag: eapsi90002u