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EPS PSI 9000 T Series Operating Manual

Dc laboratory power supply
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Operating Guide
PSI 9000 T
DC Laboratory Power Supply
Attention! This document is only
valid for devices with firmware
"KE: 2.04" and "HMI: 2.04" and
"DR: 1.0.2" or higher. For avail-
ability of updates for your device
check our website or contact us.
Doc ID: PSI9TEN
Revision: 02
Date: 02/2019

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Summary of Contents for EPS PSI 9000 T Series

  • Page 1 Operating Guide PSI 9000 T DC Laboratory Power Supply Attention! This document is only valid for devices with firmware “KE: 2.04” and “HMI: 2.04” and Doc ID: PSI9TEN “DR: 1.0.2” or higher. For avail- ability of updates for your device Revision: 02 check our website or contact us.

  • Page 3: Table Of Contents

    PSI 9000 T Series TABLE OF CONTENTS GENERAL OPERATION & APPLICATION About this document ........5 Personal safety ..........35 1.1.1 Retention and use ..........5 Operating modes .........35 1.1.2 Copyright ............5 3.2.1 Voltage regulation / Constant voltage ..35 1.1.3 Validity ............5 3.2.2 Current regulation / constant current / current limiting ............36...
  • Page 4 PSI 9000 T Series SERVICE AND MAINTENANCE Maintenance / cleaning ........71 Fault finding / diagnosis / repair....71 4.2.1 Replacing a defect mains fuse ....71 4.2.2 Firmware updates ........71 Calibration ............72 4.3.1 Preface ............72 4.3.2 Preparation ...........72 4.3.3 Calibration procedure ........72 CONTACT AND SUPPORT Repairs ............74...

  • Page 5: General

    EPS Stromversorgung guarantees the functional competence of the applied technology and the stated performance parameters. The warranty period begins with the delivery of free from defects equipment. Terms of guarantee are included in the general terms and conditions (TOS) of EPS Stromversorgung. Limitation of liability All statements and instructions in this manual are based on current norms and regulations, up-to-date technology and our long term knowledge and experience.

  • Page 6: Disposal Of Equipment

    PSI 9000 T Series Disposal of equipment A piece of equipment which is intended for disposal must, according to European laws and regulations (ElektroG, WEEE) be returned to the manufacturer for scrapping, unless the person operating the piece of equipment or an- other, delegated person is conducting the disposal.

  • Page 7: Safety

    PSI 9000 T Series Safety 1.7.1 Safety notices Mortal danger - Hazardous voltage • Electrical equipment operation means that some parts can be under dangerous voltage. Therefore all parts under voltage must be covered! This basically applies to all models, though 40 V models according to SELV can not generate hazardous DC voltage.

  • Page 8: Responsibility Of The User

    PSI 9000 T Series 1.7.2 Responsibility of the user The equipment is in industrial operation. Therefore the operators are governed by the legal safety regulations. Alongside the warning and safety notices in this manual the relevant safety, accident prevention and environmental regulations must also be applied.

  • Page 9: Alarm Signals

    PSI 9000 T Series 1.7.5 Alarm signals The equipment offers various possibilities for signalling alarm conditions, however, not for danger situations. They are signalled optically (on the display as text) and electronically (pin/status output of an analog interface) and digitally (digital interface). All alarms will cause the device to switch off the DC output.

  • Page 10: Specific Technical Data

    PSI 9000 T Series 1.8.3 Specific technical data Model 320 W PSI 9040-20 T PSI 9080-10 T PSI 9200-04 T AC Input Voltage range 90...264 V AC 90...264 V AC 90...264 V AC Connection 1ph,N,PE 1ph,N,PE 1ph,N,PE Frequency 45-65 Hz...
  • Page 11 PSI 9000 T Series Model 320 W PSI 9040-20 T PSI 9080-10 T PSI 9200-04 T Power regulation Display: Resolution See section „1.9.5.4. Resolution of the displayed values“ Display: Accuracy ≤ 0.8% P ≤ 0.8% P ≤ 0.8% P Efficiency ≈...
  • Page 12 PSI 9000 T Series Model 640 W PSI 9040-40 T PSI 9080-20 T PSI 9200-10 T AC Input Voltage range 90...264 V AC 90...264 V AC 90...264 V AC Connection 1ph,N,PE 1ph,N,PE 1ph,N,PE Frequency 45-65 Hz 45-65 Hz 45-65 Hz...
  • Page 13 PSI 9000 T Series Model 640 W PSI 9040-40 T PSI 9080-20 T PSI 9200-10 T Power regulation Display: Resolution See section „1.9.5.4. Resolution of the displayed values“ Display: Accuracy ≤ 0.8% P ≤ 0.8% P ≤ 0.8% P Efficiency ≈...
  • Page 14 PSI 9000 T Series Model 1000 W PSI 9040-40 T PSI 9080-40 T PSI 9200-15 T AC Input Voltage range 90...264 V AC 90...264 V AC 90...264 V AC Connection 1ph,N,PE 1ph,N,PE 1ph,N,PE Frequency 45-65 Hz 45-65 Hz 45-65 Hz...
  • Page 15 PSI 9000 T Series Model 1000 W PSI 9040-40 T PSI 9080-40 T PSI 9200-15 T Power regulation Display: Resolution See section „1.9.5.4. Resolution of the displayed values“ Display: Accuracy ≤ 0.8% P ≤ 0.8% P ≤ 0.8% P Efficiency ≈...
  • Page 16 PSI 9000 T Series Model 1000 / 1500 W PSI 9500-06 T PSI 9040-60 T PSI 9080-60 T AC Input Voltage range without derating 90...264 V AC 150...264 V AC 150...264 V AC Voltage range with derating 90...150 V AC 90...150 V AC...
  • Page 17 PSI 9000 T Series Model 1000 / 1500 W PSI 9500-06 T PSI 9040-60 T PSI 9080-60 T Power regulation Display: Resolution See section „1.9.5.4. Resolution of the displayed values“ Display: Accuracy ≤ 0.8% P ≤ 0.8% P ≤ 0.8% P Efficiency ≈...
  • Page 18 PSI 9000 T Series Model 1500 W PSI 9200-25 T PSI 9500-10 T AC Input Voltage range without derating 150...264 V AC 150...264 V AC Voltage range with derating 90...150 V AC 90...150 V AC Connection 1ph,N,PE 1ph,N,PE Frequency 45-65 Hz...
  • Page 19 PSI 9000 T Series Model 1500 W PSI 9200-25 T PSI 9500-10 T Power regulation Display: Resolution See section „1.9.5.4. Resolution of the displayed values“ Display: Accuracy ≤ 0.8% P ≤ 0.8% P Efficiency ≈ 92% ≈ 92% Internal resistance regulation Adjustment range 0...240 Ω...

  • Page 20: Views

    PSI 9000 T Series 1.8.4 Views A - Control panel with display B - Knobs C - USB port D - DC output E - Remote sensing connector Figure 1 - Front view EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
  • Page 21 PSI 9000 T Series Figure 2 - Rear view (320 W / 640 W version shown) Figure 3 - Rear view (1000 W / 1500 W version shown) Do not loosen the grounding point (brass screw above power switch or AC inlet) in order to con- nect PE cables! The device is supposed to be grounded via the AC cord, while the grounding point is used to connect the enclosure to PE.
  • Page 22 PSI 9000 T Series Figure 4 - Top view EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 22 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de Germany...

  • Page 23: Control Elements

    PSI 9000 T Series 1.8.5 Control elements Overview of the operating panel For a detailed description see section „1.9.5. The control panel (HMI)“. Touchscreen display Used for selection of set values, menus, condi- tions and display of actual values and status.

  • Page 24: Construction And Function

    General description The DC laboratory power supplies of the PSI 9000 T series are especially suitable for the use in test and devel- opment applications, in laboratories and research. The “T” in the series names stands for tower and point for the upright enclosure design which saves space on laboratory desks and test equipment racks.

  • Page 25: Scope Of Delivery

    PSI 9000 T Series 1.9.3 Scope of delivery 1 x Power supply device PSI 9000 T 1 x Mains cord 2 m (1000/1500 W models) or 1.5 m (320/640 W models) with Schuko plug or UK plug, depending on shipping destination 1 x USB cable, 1.8 m...

  • Page 26: The Control Panel (Hmi)

    PSI 9000 T Series 1.9.5 The control panel (HMI) The HMI (Human Machine Interface) consists of a display with touchscreen, two rotary knobs, a pushbutton and an USB port. 1.9.5.1 Touchscreen display The graphic touchscreen display is divided into a number of areas. The complete display is touch sensitive and can be operated by finger or stylus to control the equipment.
  • Page 27 PSI 9000 T Series • Status display (upper right) This area displays various status texts and symbols: Display Description Locked The HMI is locked Unlocked The HMI is unlocked Remote: The device is under remote control via..Analog ..the analog interface ..the USB port...

  • Page 28: Usb Port (Back Side)

    USB stick and installs a virtual COM port. Details for remote control can be found on the included USB stick or the web site of EPS Stromversorgung. The device can be addressed via this port either using the inter- national standard ModBus RTU protocol or by SCPI language.

  • Page 29: Ethernet Port

    PSI 9000 T Series 1.9.8 Ethernet port The Ethernet port is optional. Also see section 1.9.4. The port on the back side of the device is provided for com- munication with the device in terms of remote control or moni- toring.

  • Page 30: Installation & Commissioning

    Preparation Mains connection for a PSI 9000 T series device is done via the included 1.5 meters or 2 meters long (depending on the power rating and input current) three-pole mains cord. In case a different AC connection is used, make sure that the other cable has at least a cross section suitable for the rated input current (stated on type label).
  • Page 31 PSI 9000 T Series 2.3.3.1 Placement on horizontal standing surfaces The device is designed as a desktop unit and must only be operated on horizontal surfaces, which are capable of securely carrying the weight of the device. Acceptable and inacceptable operating positions:...

  • Page 32: Connection To Dc Loads

    PSI 9000 T Series 2.3.4 Connection to DC loads • Connection to and operation with transformerless DC-AC inverters (for example solar in- verters) is restricted, because the inverter can shift the potential of negative output (DC-) against PE (ground), which is limited to max. ±400 V DC.

  • Page 33: Connection Of Remote Sensing

    PSI 9000 T Series 2.3.6 Connection of remote sensing • Remote sensing is only effective during constant voltage operation (CV) and for other regulation modes the sense input should be disconnected, if possible, because connecting it generally increases the oscillation tendency.

  • Page 34: Initial Commission

    PSI 9000 T Series 2.3.8.3 Alternative drivers In case the CDC drivers described above are not available on your system, or for some reason do not function correctly, commercial suppliers can help. Search the Internet for suppliers using the keywords “cdc driver windows“...

  • Page 35: Operation & Application

    PSI 9000 T Series Operation & application Personal safety • In order to guarantee safety when using the device, it is essential that only persons operate the device who are fully acquainted and trained in the required safety measures to be taken when working with dangerous electrical voltages • For models which can generate a voltage which is dangerous by contact, or is connected to...

  • Page 36: Current Regulation / Constant Current / Current Limiting

    PSI 9000 T Series 3.2.2 Current regulation / constant current / current limiting Current regulation is also known as current limiting or constant current mode (CC). Current flowing from the power supply is determined by the output voltage and the load’s true resistance. As long as the output current is lower than the adjusted current limit, the device will be either in constant voltage or constant power mode.

  • Page 37: Alarm Conditions

    PSI 9000 T Series Alarm conditions This section only gives an overview about device alarms. What to do in case your device indi- cates an alarm condition is described in section „3.6. Alarms and monitoring“. As a basic principle, all alarm conditions are signalled optically (text + message in the display) and as a readable status and alarm counter via the digital interface.

  • Page 38: Manual Operation

    PSI 9000 T Series Manual operation 3.4.1 Switching on the device The device should, as far as possible, always be switched on using the toggle switch on the rear of the device. After switching on, the display will first show the company logo, followed by a language selection which will close automatically after 3 seconds and later manufacturer’s name andaddress, device type, firmware version(s), serial...
  • Page 39 PSI 9000 T Series EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 39 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de Germany...
  • Page 40 PSI 9000 T Series EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 40 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de Germany...
  • Page 41 PSI 9000 T Series EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 41 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de Germany...
  • Page 42 PSI 9000 T Series 3.4.3.1 Menu “Settings” This is main menu for all settings related to the general operation of the device and of the interface(s). Sub menu P. Description Output Settings Allows for adjustment of set values related to the DC output, alternatively to the...
  • Page 43 PSI 9000 T Series Setting P. Description Analog interface Rem-SB Selects how the input pin “Rem-SB” of the analog interface shall be working regarding levels (see „3.5.4.4 Analog interface specification“ on page 52) and logic: • normal = Levels and function as described in the table in 3.5.4.4 • inverted = Levels and function will be inverted...
  • Page 44 PSI 9000 T Series Submenu “IP Settings 2” Element Description DNS address Default value: 0.0.0.0 Permanent manual setting of the network address of a domain name server (short: DNS) which has to be present in order to translate the host name to the device’s IP, so the device...
  • Page 45 PSI 9000 T Series 3.4.3.8 Menu “HMI Setup” These settings refer exclusively to the control panel (HMI). Element Description Language Selection of the display language between German, English, Russian or Chinese. This selection screen is also shown for 3 seconds during the startup phase of the device.

  • Page 46: Adjustment Limits (Limits)

    PSI 9000 T Series 3.4.4 Adjustment limits (Limits) Adjustment limits are only effective on the related set values, no matter if using manual adjustment or remote control setting! The limits settings could be locked by a PIN (see MENU, “Limits lock”) By default, all set values (U, I, P, R) are adjustable from 0 to 102% of the rated value.

  • Page 47: Manual Adjustment Of Set Values

    PSI 9000 T Series 3.4.6 Manual adjustment of set values The set values for voltage, current and power are the fundamental operating possibilities of a power supply and hence the two rotary knobs on the front of the device are always assigned to two of the values in manual opera- tion.

  • Page 48: Switching The Main Screen View

    PSI 9000 T Series 3.4.7 Switching the main screen view The main screen, also called status page, with its set values, actual values and device status can be switched from the standard view mode with three or four values to a simpler mode with only voltage and current display.

  • Page 49: Recording To Usb Stick (Logging)

    The logging stores files of CSV format on the stick. The layout of the log data is the same as when logging via PC with software EPS Power Control. The advantage of USB logging over PC logging is the mobility and that no PC is required.

  • Page 50: Remote Control

    Programming details for the interfaces, the communication protocols etc. are to be found in the documentation “Programming Guide ModBus & SCPI“ which is supplied on the included USB stick or which is available as down- load from the EPS Stromversorgung website. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...

  • Page 51: Remote Control Via The Analog Interface (Ai)

    PSI 9000 T Series 3.5.4 Remote control via the analog interface (AI) 3.5.4.1 General The optionally available, galvanically isolated, 15-pole analog interface (short: AI, also see section 1.9.9) is located on the back side of the device after installation and offers the following possibilities: • Remote control of current, voltage, power and internal resistance...
  • Page 52 PSI 9000 T Series 3.5.4.3 Acknowledging device alarms Device alarms (see 3.6.2) are always indicated in the front display and some of them are also reported as signal on the analog interface socket (see 3.5.4.4), for example the overvoltage alarm (OV), which is considered as critical.
  • Page 53 PSI 9000 T Series 3.5.4.5 Overview of the Sub-D Socket 3.5.4.6 Simplified diagram of the pins Digital Input (DI) Analog Input (AI) V~0.5 It requires to use a switch with low resist- High resistance input (impedance ance (relay, switch, circuit breaker etc.) in >40 k...
  • Page 54 PSI 9000 T Series • Remote control is not active In this mode of operation pin “REM-SB” can serve as lock, preventing the DC output from being switched on by any means. This results in following possible situations: Parameter „Analog ...

  • Page 55: Alarms And Monitoring

    PSI 9000 T Series Alarms and monitoring 3.6.1 Definition of terms There is a clear distinction between device alarms (see „3.3. Alarm conditions“), such as overvoltage protection, and user defined events, such as OVD (overvoltage detection). Whilst device alarms serve to protect the device and the connected load by initially switching off the DC output, user defined events can switch off the DC output (Action = ALARM), but can also simply make the user aware by a pop-up in the display.
  • Page 56 PSI 9000 T Series These device alarms can’t be configured and are based on hardware: Alarm Meaning Description Indication AC supply over- or undervoltage. Triggers an alarm if the AC supply is out of specification or when the device is cut from supply, for example Display, analog &...

  • Page 57: Control Panel (Hmi) Lock

    PSI 9000 T Series As soon as an event is set up with an action other than “NONE” and with accepted settings, an incident can occur whether the DC output is switched on or off. On leaving the pages “User events” or “Settings” an event can be directly displayed.

  • Page 58: Limits Lock

    PSI 9000 T Series Limits lock In order to avoid the alteration of the adjustment limits (also see „3.4.4. Adjustment limits (Limits)“) by an unprivi- leged user, the screen with the adjustment limit settings (“Limits”) can be locked by a PIN code. The menu pages “Limit Settings”...
  • Page 59 PSI 9000 T Series ► How to load a user profile to work with While the DC output is switched off, tap the touch area on the main screen In the menu page, tap on “Page 2” and then on “Profiles”.

  • Page 60: The Function Generator

    PSI 9000 T Series 3.10 The function generator 3.10.1 Introduction The built-in function generator (short: FG) is able to create various signal forms and apply them to the set value of voltage or current. All functions are based on a customisable arbitrary generator. In manual operation, the separate functions are available for selection and configuration on the front panel.

  • Page 61: Method Of Operation

    PSI 9000 T Series 3.10.2.3 Resolution Amplitudes generated by the arbitrary generator have an effective resolution of approx. 52428 steps. If the am- plitude is very low and the time long, the device would generate less steps and set multiple identical values after another, generating a staircase effect.

  • Page 62: Sine Wave Function

    PSI 9000 T Series Setting the various functions is described below. After setting it up, the function can be loaded. ► How to load a function After setting the values for the required signal generation, tap on the touch area The device will then load the data into the internal controller and changes the display.

  • Page 63: Triangular Function

    PSI 9000 T Series 3.10.6 Triangular function The following parameters can be configured for a triangular wave function: Value Range Description Ampl. 0...(Nominal value - (Offset)) of U, I Amplitude of the signal to be generated Offset 0...(Nominal value - (Ampl.)) of U, I Offset, based on the foot of the triangular wave 0.1 ms...36000 s...

  • Page 64: Trapezoidal Function

    PSI 9000 T Series 3.10.8 Trapezoidal function The following parameters can be configured for a trapezoidal curve function: Value Range Description Ampl. 0...(Nominal value - (Offset)) of U, I Amplitude of the signal to be generated Offset 0...(Nominal value - (Ampl.)) of U, I Offset, based on the foot of the trapezium 0.1 ms...36000 s...

  • Page 65: 3.10.10 Arbitrary Function

    PSI 9000 T Series 3.10.10 Arbitrary function The arbitrary i. e. freely definable function offers the user a wider scope. There are 99 sequence points available for use on either current (I) or voltage (U) while having the same set of parameters which can be arbitrarily con- figured, so that a complex function process can be built up.
  • Page 66 PSI 9000 T Series Schematic diagram: Applications and results: Example 2 Focusing 1 cycle of 1 sequence point: The DC values at start and end are the same but the AC (amplitude) not. The end value is higher than the start so that the amplitude increases with each new half sine wave continuously through the sequence.
  • Page 67 PSI 9000 T Series By linking together a number of differently configured sequences, complex progressions can be created. Smart configuration of the arbitrary generator can be used to match triangular, sine, rectangular or trapezoidal wave func- tions and thus, e.g. a sequence of rectangular waves with differing amplitudes or duty cycles could be produced.
  • Page 68 PSI 9000 T Series 3.10.10.1 Loading and saving the arbitrary function The 99 sequence points of the arbitrary function, which can be manually configured with the control panel of the device and which are applicable either to voltage (U) or current (I), can be saved to or loaded from a common USB stick via the front side USB port.

  • Page 69: 3.10.11 Remote Control Of The Function Generator

    PSI 9000 T Series ► How to save a sequence point table (99 point) to an USB stick: Do not plug the USB stick yet or remove it. Access the function selection menu of the function generator via MENU -> Function Generator -> Arbitrary...

  • Page 70: Other Applications

    PSI 9000 T Series 3.11 Other applications 3.11.1 Series connection Series connection of two or multiple devices is basically possible, but for reasons of safety and isolation following restrictions apply: • Both, negative (DC-) and positive (DC+) output poles are coupled to PE via type X capacitors, limiting the max.
  • Page 71 The firmware of the control panel (HMI), of the communication unit (KE) and the digital controller (DR), if neces- sary, is updated via the rear side USB port. For this the software “EPS Power Control” is needed which is included with the device or available as download from our website together with the firmware update, or upon request.
  • Page 72 PSI 9000 T Series Calibration 4.3.1 Preface The devices of series PSI 9000 T feature a function to readjust the most important output values when doing a calibration and in case these values have moved out of tolerance. The readjustment is limited to compensate small differences of up to 1% or 2% of the max.
  • Page 73 PSI 9000 T Series 4.3.3.1 Calibrating the set values ► How to calibrate the output voltage Connect a multimeter to the DC output. Connect a load and set its cur- rent to approx. 5% of the nominal current of the power supply, in this example ≈3 A, and 0 V (if the load is electronic).
  • Page 74 PSI 9000 T Series 4.3.3.4 Save and exit After calibration you may furthermore enter the current date as “calibration date” by tapping in the selection screen and enter the date in format YYYY / MM / DD. Last but not least save the calibration data permanently by tapping Leaving the calibration selection menu without tapping “Save and exit”...

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