Operating Guide PSI 9000 2U DC Laboratory Power Supply Attention! This document is only valid for devices with firmware “KE: 2.17” (standard version) resp. “KE: 2.04” (GPIB, 3W) and “HMI: 2.10” and “DR: 1.6.5” Doc ID: PSI92UTEN or higher. For availability of up- dates for your device check our Revision: 04 website or contact us.
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.
• Claims of any sort due to damage caused by non-intended usage will not be accepted. • All damage caused by non-intended usage is solely the responsibility of the operator. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 6 Alter Postweg 101 •...
• must use the designated and recommended safety equipment. Furthermore, anyone working with the equipment is responsible for ensuring that the device is at all times techni- cally fit for use. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 7 Alter Postweg 101 •...
Qualified persons are those who are able through training, knowledge and experience as well as knowledge of the specific details to carry out all the required tasks, identify dangers and avoid personal and other risks. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
4.92 V and 5.08 V. (2 RMS value: LF 0...300 kHz, PP value: HF 0...20MHz (3 The display error adds to the error of the related actual value on the DC output EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 10 Alter Postweg 101 •...
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(3 For technical specifications of the analog interface see „3.5.4.4 Analog interface specification“ on page 58 (4 Article number of the base version, devices with options will have a different number (5 Typical value at 100% output voltage and 100% power EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 11 Alter Postweg 101 •...
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4.92 V and 5.08 V. (2 RMS value: LF 0...300 kHz, PP value: HF 0...20MHz (3 The display error adds to the error of the related actual value on the DC output EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 12 Alter Postweg 101 •...
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(3 For technical specifications of the analog interface see „3.5.4.4 Analog interface specification“ on page 58 (4 Article number of the base version, devices with options will have a different number (5 Typical value at 100% output voltage and 100% power EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 13 Alter Postweg 101 •...
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4.92 V and 5.08 V. (2 RMS value: LF 0...300 kHz, PP value: HF 0...20MHz (3 The display error adds to the error of the related actual value on the DC output EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 14 Alter Postweg 101 •...
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(3 For technical specifications of the analog interface see „3.5.4.4 Analog interface specification“ on page 58 (4 Article number of the base version, devices with options will have a different number (5 Typical value at 100% output voltage and 100% power EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 15 Alter Postweg 101 •...
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4.92 V and 5.08 V. (2 RMS value: LF 0...300 kHz, PP value: HF 0...20MHz (3 The display error adds to the error of the related actual value on the DC output EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 16 Alter Postweg 101 •...
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(3 For technical specifications of the analog interface see „3.5.4.4 Analog interface specification“ on page 58 (4 Article number of the base version, devices with options will have a different number (5 Typical value at 100% output voltage and 100% power EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 17 Alter Postweg 101 •...
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4.92 V and 5.08 V. (2 RMS value: LF 0...300 kHz, PP value: HF 0...20MHz (3 The display error adds to the error of the related actual value on the DC output EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 18 Alter Postweg 101 •...
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(3 For technical specifications of the analog interface see „3.5.4.4 Analog interface specification“ on page 58 (4 Article number of the base version, devices with options will have a different number (5 Typical value at 100% output voltage and 100% power EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 19 Alter Postweg 101 •...
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4.92 V and 5.08 V. (2 RMS value: LF 0...300 kHz, PP value: HF 0...20MHz (3 The display error adds to the error of the related actual value on the DC output EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 20 Alter Postweg 101 •...
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(3 For technical specifications of the analog interface see „3.5.4.4 Analog interface specification“ on page 58 (4 Article number of the base version, devices with options will have a different number (5 Typical value at 100% output voltage and 100% power EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 21 Alter Postweg 101 •...
DC output, no matter if the device is manually controlled or remotely USB-A port For the connection of standard USB sticks. See section „1.9.6.5. USB port (front side)“ for more details. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 25 Alter Postweg 101 •...
GPIB port. This option can be retrofitted upon request. The device will keep the GPIB interface USB and analog interfaces. Via the GPIB port, it can only support SCPI commands. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 27 Alter Postweg 101 •...
A, V, W 0-110% nom OVP, OCP etc., related to the physical values Valid also for values related to these physical values, such as OVD for voltage and UCD for current EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 28 Alter Postweg 101 •...
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Pushbutton function of the knobs The rotary knobs also have a pushbutton function which is used in all menu options for value adjustment to move the cursor by rotation as shown: EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 29 Alter Postweg 101 •...
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FC function table data, as calculated by the device. Can be loaded again. wave_u<nr>.csv Set point data (here: sequences) from arbitrary function generator of either volt- wave_i<nr>.csv age U or current I EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 30 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
The input voltage range of the set values and the output voltage range of the monitor values, as well as reference voltage level can be switched in the settings menu of the device between 0-5 V and 0-10 V, in each case for 0-100%. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 31 Alter Postweg 101 •...
The connection to a PC or other GPIB port is done with standard GPIB cables from stock, which can have straight or 90° connectors. When using cable with 90° connectors, the USB port will be inaccessible. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 32 Alter Postweg 101 •...
(see „1.8.3. Specific technical data“) • Before connecting to the mains ensure that the supply voltage is as shown on the product label. Overvoltage on the AC supply can cause equipment damage. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 33 Alter Postweg 101 •...
In order to do that, the 19” mounting brackets can be removed after loosening the screws on the front grips and replacing them by included pieces, or vice versa. Acceptable and inacceptable installation positions: Standing surface EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 34 Alter Postweg 101 •...
M8 (8 mm) bolt on a brass block Screw clamp connection M6, on copper rail Recommendation: M8 ring lug with a 8.4 mm hole Recommendation: M6 ring lug with a 6.5 mm hole EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 35 Alter Postweg 101 •...
• If grounding one of the DC output poles check if any pole of the load is already grounded. This could lead to a short circuit! EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 36 Alter Postweg 101 •...
• The sense cables must be connected + to + and - to - at the load, otherwise both systems may be damaged • In master-slave operation, the remote sensing should be connected to the master unit only Figure 7 - Example for remote sensing wiring EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 37 Alter Postweg 101 •...
The analog interface is galvanically isolated from the device internally. Unless absolutely re- quired, do not connect any ground of the analog interface (AGND) to the DC minus output as this will cancel the galvanic isolation. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 38 Alter Postweg 101 •...
In case of a firmware update, return of the equipment following repair or a location or configuration change, similar measures should be taken to those of initial start up. Refer to „2.3.12. Initial commission“. Only after successful checking of the device as listed may it be operated as usual. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 39 Alter Postweg 101 •...
= transient below the adjusted value for a short time. t = transient time to settle the output voltage. time to settle the output voltage. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 40 Alter Postweg 101 •...
) * I With resistance mode being activated the function generator will be unavailable and the actual power value provided by the device does not include the simulated power dissipation of Ri. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 41 Alter Postweg 101 •...
• the product of the output voltage and output current in the DC output exceeds the adjusted OPP limit. This function serves to protect the connected load application so that this is not overloaded and possibly damaged due to an excessive power consumption. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 42 Alter Postweg 101 •...
The menu structure is shown schematically on the following pages. Some setting parameters are self-explanatory, others are not. The latter will be explained on the pages following. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 43 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
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This applies for the digital MS bus, the analog Share bus and two-quadrants operation. For details see sections „3.11.1. Parallel operation in master-slave mode (MS)“ and „3.11.4. Two quadrant operation (2QO)“. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 47 Alter Postweg 101 •...
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Baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 115200 IF Level 1 Description Node Address Adjustment of the GPIB node address (only with option 3W installed) in the range 1...30 EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 48 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
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Profibus slave. Max. length: 54 characters Installation Date String input box for a user-definable text which describes the Profibus slave installation date tag. Max. length: 40 characters EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 49 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
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Manual selection of the baud rate that is used by the CANopen interface. Possible selections: 10 kbps, 20 kbps, 50 kbps, 100 kbps, 125 kbps, 250 kbps, 500 kbps, 800 kbps, 1Mbps (1Mbps = 1 Mbit/s, 10 kbps = 10 kbit/s) EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 50 Alter Postweg 101 •...
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- if activated - resistance to a simpler display with only voltage and current, plus status. See „3.4.7. Switching the main screen view“. Default setting: both disabled EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 51 Alter Postweg 101 •...
P by direct input. See section 3.4.6. The actual operating mode, while the DC output is switched on, solely depends only on the set values. For more information see section „3.2. Operating modes“. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 52 Alter Postweg 101 •...
Refer to „3.4.3.8. Menu “HMI Setup”“ to see where to switch the view mode in the MENU. Comparison: Standard status page Alternative status page EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 53 Alter Postweg 101 •...
See the external documentation “Programming Guide ModBus & SCPI” if you are using custom software, or refer to the external documentation from LabView VIs or other software provided by the manufacturer. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 54 Alter Postweg 101 •...
• With setting “Manual start/stop” the device will continue to log even on occurring alarms, so this mode can be used to determine the period of temporary alarms like OT or PF EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
* For technical details of the various modules see the extra documentation “Programming Guide Modbus & SCPI” Models with option 3W installed offer an additional pre-installed GPIB port next to the default USB port. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
DC- or DC+ output! * Unless the device has not already been delivered with KE firmware version 2.10 or higher, the internal resistance mode requires a hardware modification in the factory EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
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DC output of the device 1) Unless the device has not already been delivered with KE firmware 2.10 or higher, using resistance mode via analog interface first requires hardware retrofit- ting from the manufacturer EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 58 Alter Postweg 101 •...
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If the pin is unconnected or the connected contact is open, the pin will be HIGH. With parameter “Analog interface REM-SB” being set to “normal”, it requests “DC output on”. So when activating remote control, the DC output will instantly switch on. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 59 Alter Postweg 101 •...
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Reading actual values The AI provides the DC output values as current and voltage monitor. These can be read using a standard multimeter or similar. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 60 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
Triggers an alarm if the DC output power reaches the Display, digital 0 W...1.1*P Protection defined threshold. The DC output will be switched off. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 61 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
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Triggers an event if the output power exceeds the de- OverPower Detection 0 W...P fined threshold. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 62 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
HMI remains locked. In case the additional PIN code lock has been activated in the menu “HMI Lock”, another requester will pop up, asking you to enter the PIN before it finally unlocks the HMI. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
In the selection screen (right) choose between user profile 1-5 in which the settings are to be saved. The profile will then be displayed and the values can be checked, but not changed. Save using the touch area EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 64 Alter Postweg 101 •...
This has a positive impact on periodic functions like rectangle or sine wave. Alternatively, the resulting wave form on the DC output can also be improved by attaching additional load (fixed & ohmic or variable & electronic). EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
For example, if you apply the selected function to the output current, then the overall current limit should not interfere and should at least be as high as offset + amplitude. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 66 Alter Postweg 101 •...
(12 A + 15 A) * 60 V = 1620 W. 3.10.6 Triangular function The following parameters can be configured for a triangular wave function: EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 67 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
1/25 Hz = 40 ms. For a duty cycle of 80% the pulse time (t1) is 40 ms*0.8 = 32 ms and the pause time (t2) is 8 ms. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 68 Alter Postweg 101 •...
If the curve in sequence point 4 should be a sine wave, then these 5 sequences have to be transferred to the arbitrary generator. Sequence points EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 69 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
If the sequence time were 1 s and the frequency 1 Hz, there would be exactly 1 sine wave. If the time were 0.5 s at the same frequency, there would only be a half sine wave. Seq.time EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 70 Alter Postweg 101 •...
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(AC) will be created and only the DC settings will be effective. Here start and end values are unequal and a steadily increasing ramp is generated. Seq.time EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 71 Alter Postweg 101 •...
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Sequence point 3: Horizontal ramp (f = 0) Sequence point 4: Falling ramp (f = 0) Point 1 Point 2 Pt. 3 Point 4 EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 72 Alter Postweg 101 • 86159 Augsburg Fax: +49 821 / 570451-25 info@eps-germany.de...
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The selected file is then checked and loaded, if valid. In case it is not valid, the device will show an error message. Then the file must be corrected and the steps repeated. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 73 Alter Postweg 101 •...
UI table. The UI function suits very good for the simulation of fuel cell characteristics. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
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Once the file is accepted, you will be requested to remove the USB drive. Submit and load the function with to start and control it as with other function (also see „3.10.4.1. Function selection and control“). EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 75 Alter Postweg 101 •...
(0%...100% in 1% steps, see screenshot below) helps to simulate different light situations from darkness (no power output) to the minimal amount of light that is required to make the panel provide full power. Umpp EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 76 Alter Postweg 101 •...
It means, the voltage has to decrease from point 1 to point 4, while the cur- rent has to increase. In case the rules are not followed, the device will reject the values with an error and reset them to 0. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 77 Alter Postweg 101 •...
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Without any load, the voltage will rise to the adjusted Uoc value. Stop the function run anytime as described in 3.10.4.1. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 78 Alter Postweg 101 •...
• The function generator is unavailable if R mode (resistance) is activated • Some functions are based on the arbitrary generator, some on the XY generator. Therefore, both generators have to be controlled and configured separately EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 79 Alter Postweg 101 •...
• Slaves cannot be controlled manually as long as they’re in remote control by the master • In case the function generator of the master unit is going to be used, the Share bus must be connected as well EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
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The initialising process of the master and the master-slave system will, as long as MS mode is still activated, be repeated each time the units are powered. The initialisation can be repeated anytime via the MENU in GENERAL SETTINGS, PAGE: 10. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 81 Alter Postweg 101 •...
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MS system again, finding and integrating all active slaves. In this case, MS can be restored automatically. • If accidently multiple or no units are defined as master the master-slave system cannot be initialised EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 82 Alter Postweg 101 •...
It is thus recommended to leave the DC output switched on as long as the battery is connected (equals to trickle charge) and only switch if off for connecting/disconnecting a battery. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
16 units cannot be exceeded. Regarding the Share bus connection, all e-load units have to be slaves, while one of the PSUs has to be set as master. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 84 Alter Postweg 101 •...
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When reaching 27 V, the power supply will deliver only the current needed to maintain the battery voltage. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
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. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
The calibration procedure, as explained below, is an example with model PSI 9080-120 2U. Other models are treated the same way, with values according to the particular PSI model and the required load. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de...
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“Calibrate outp. value” select “Calibrate actual val.” in the submenus. After the device shows measured values on display, wait at least 2s for measured value to settle and then tap NEXT until you are through all steps. EPS Stromversorgung GmbH Fon: +49 821 / 570451-0 www.eps-germany.de Page 88 Alter Postweg 101 •...
Questions or problems with operation of the device, use of optional components, with the documentation or soft- ware, can be addressed to technical support either by telephone or e-Mail. Address e-Mail Telephone EPS Stromversorgung GmbH All issues: Switchboard: +49 821 / 570451-0 Alter Postweg 101 info@eps-germany.de...
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