EPS RS 232 Manual

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

M a n u a l

E P S / M P

EPS Stromversorgung GmbH

Telefon +49 (0)821 570451-0

Electronic Power Supplies

Fax +49 (0)821 570451-25

Alter Postweg 101

info@eps-germany.de

D-86159 Augsburg

www.eps-germany.de

Table of Contents

Need help?

Do you have a question about the RS 232 and is the answer not in the manual?

Questions and answers

Summary of Contents for EPS RS 232

Page 1 M a n u a l E P S / M P EPS Stromversorgung GmbH Telefon +49 (0)821 570451-0 Electronic Power Supplies Fax +49 (0)821 570451-25 Alter Postweg 101 info@eps-germany.de D-86159 Augsburg www.eps-germany.de...
Page 4 Software version: V21 June 2014...
Page 5: Table Of Contents
Technical Specifications .............................. 4 Ambient Conditions ................................4 Input Specifications ................................4 Output Specifications ................................. 4 AI Interface ..................................5 RS 232 ....................................5 RS 485 ....................................5 Technical Drawing ................................6 Important Safety Instructions ............................. 7 Initial Operation .................................. 7 Unpacking ...................................
Page 6 Technical Specifications Ext. Control: AI Interface (Option) ..........................29 Pin Assignment AI Interface .............................. 30 Analog Input ..................................30 Set Point U (U ) ..............................30 Set Point I (I ) ................................ 31 Set Point OVP (U ) ..............................31 Analog Output .................................. 31 Monitor Set Point U (U ) ............................
Page 7 Technical Specifications...
Page 8: Technical Specifications
10 - 55 Hz/1 min/2G XYZ Shock < 20 G Weight 5 kW 19 kg, 10 kW 26 kg, 15 kW 33 kg NPUT PECIFICATIONS EPS/MP models 1.2 kW 2.4 kW (by max output power) Connection 3 wire (1P+N+E) AC socket on rear panel...
Page 9: Ai Interface
Maximum output current: 10 mA (not short-circuit-proof) Output voltage: 5 V ± 300 mV 5 V - Supply voltage Maximum output current: 50 mA (not short-circuit-proof) RS 232 Maximum input voltage: ± 25 V Signal inputs (RxD, CTS) Input resistance: 5 kΩ (Type) Switching thresholds: U <...
Page 10: Technical Drawing
Technical Specifications ECHNICAL RAWING...
Page 11: Important Safety Instructions
This operating manual is based on the state of technology at the time of printing. However, it is possible that despite regular control and correction, the present document contains printing errors or deficiencies. EPS Stromversorgung GmbH assumes no liability for any technical, printing or translational errors within this manual.
Page 12: Functional Description
Functional Description FUNCTIONAL DESCRIPTION The following block diagram gives information about the various adjustment options. Basically, four different operation modes are available: UI mode Unit is operated with current and voltage limitation. UIP mode Unit is operated with current, voltage and power limitation. Unit is operated with current, voltage and power limitation.
Page 13: General Settings
GENERAL SETTINGS RONT ANEL ESCRIPTION The picture above shows a schematic view on the front panel of the EPS/MP. There are 3 buttons to control the unit. Basic functions of the control buttons: Standby release or lock the output, quit OVP...
Page 14: Contrast
Voltage Settings ONTRAST After the unit has been switched on, the display shows the EPS logo. The contrast of the display can be adjusted by Select using the rotary pulse encoder . Afterwards, the contrast settings will be saved automatically.
Page 15: Front Panel Operation
Front Panel Operation FRONT PANEL OPERATION ISPLAY AND ETTINGS Current measurement values (Display) Display In normal mode, pushing the button switches between five different overview screens. Main display The main display shows current measure and set values. The display is divided in two separate displays. After enabling the unit, the measured values for output voltage and putput current (position 1 and 2) are displayed.
Page 16: Operating Modes
Front Panel Operation PERATING MODES Main display overview Main display 1 After power up, the display shows the actual output voltage and output current. Main display 2 Select After pushing the button once, actual output voltage and output power are shown on the display. Main display 3 Select After pushing the button...
Page 17: Operating Mode Description
Front Panel Operation Operating Mode description UI Mode In UI mode, the set values for voltage and current are transferred directly to the switch mode regulator. There is no additional digital control. UIP Mode In UIP mode, the set values for voltage and current are transferred directly to the switch mode regulator. If the output current exceeds the previously adjusted limit value, the current set point will be regulated.
Page 18: Universal Interface (Option)
As a rule, decimal places are analyzed until a resolution of 0.1% is reached. Example: Evaluation of decimal places EPS/MP with 600 V, 25 A 600 V * 0.1 % = 0.6 V one decimal place 25 A * 0.1 % = 0.025 A...
Page 19: Instruction Set
Instruction Set The IEEE-488.2 standard demands several basic commands. Some commands may occur twice for compatibility reasons (once in the EPS version and once in the (old) IEEE-488.2 version). The following syntax is used to describe the commands: Square brackets optional parameter <>...
Page 20: Detailed Description Of Commands
Universal interface (Option) Detailed description of commands CLS* or CLS - Clear Status This command deletes the status byte. It affects only the status byte of the interface, the command was sent from. No return value. For detailed description of the status byte see the different interface chapters. DAT,,...
Page 21 Universal interface (Option) IMPP[,<impp>] - Set I This command adjusts the MPP current for PV mode. Entering the command without parameters displays the set value. If the set value is higher than the maximum current of the unit, the range-error-bit within the ESR register of the interface is set.
Page 22 Universal interface (Option) LIMU - Limit U Reads maximum adjustable voltage limitation. This command requests the previously defined maximum output voltage. Example: 300 V unit was adjusted to 200 V via configuration menu LIMU Query of maximum adjustable current LIMU,200.0V Unit answers: U = 200 V limit...
Page 23 Universal interface (Option) MU[,<Nr>] - Measure U This command shows the measurement value of the present output voltage. Example: Remote operation mode OVP,200 Over voltage protection 200 V UA,10 Output voltage 10 V IA,1 Output current 1 A SB,R Output open Measures present output voltage MU,10.0V Unit answers: 10 V...
Page 24 Universal interface (Option) PCx[,<baud>,<parity>,<data bits>,<stop bits>,<handshake>,<echo>,<timeout>] - Program Communication This command adjusts the interfaces. The EPS/MP has a maximum of 3 digital interfaces (x = 1, 2 or 3). The corresponding commands are . Type and number of parameters depend on the type of interface.
Page 25 Universal interface (Option) Example: Query of first interface parameters PC1,RS232,9600,N,8,2,N,E Unit answers: PC1 is a RS232 interface, 9600 bauds, 8 data bits, 2 stop bits, no handshake, no parity, echo on. PC1,115200,N,8,2,N,E Adjust baud rate to 115200 baud. The new baud rate is active immediately after the command has been sent! Query of second interface parameters PC2,RS485,9600,N,8,1,1 Unit answers: PC2 is a RS485 interface, 9600 bauds, 8 data bits, 1 stop bit.
Page 26 Universal interface (Option) SB[,{S|R|1|0}] - Standby This command enables/disables the output. Entering the command without parameters displays the present standby SB,S SB,1 SB,R status. The commands switch the unit to standby mode, the output is disabled. The commands SB,0 disable the standby mode, the output is enabled. Example: Remote operation mode OVP,200...
Page 27 Universal interface (Option) Example: STATUS Status query STATUS,0000000100010000 Unit answers: Remote operation mode, power limitation UA[,] - Set U This command adjusts the voltage limitation. Entering the command without parameters displays the present set point. If the set point exceeds the maximum voltage of the unit, the range error bit within the ESR register of the interface is set.
Page 28: Response String
Universal interface (Option) WAVERESET, - Start Userwave Data Starts the transfer of a user defined output characteristic. The parameters U and I define the maximum voltage of the output characteristic. Afterwards, the fulcrums of the UI characteristic can be entered using the command WAVE WAVELIN .
Page 29: Ext. Control: Computer
Ext. Control: Computer EXT. CONTROL: COMPUTER GPIB Connection is carried out with a 24pin Centronics connector. The device address is adjusted with the DIP switches S1- S5. Here, S1 has the lowest priority and S5 the highest. Name Function DIO1 Data line 1 DIO2 Data line 2...
Page 30: Status Word
Ext. Control: Computer Source Handshake function available Acceptor Handshake function available Talker, Serial Poll, end addressing by MLA Listener function, end addressing by MTA Service request available Remote/Local function available No parallel poll function Device clear function available No trigger function no controller function Open-collector driver Status Word...
Page 31 Ext. Control: Computer Name Function N.C. Data line from unit to PC Data line from PC to unit N.C. N.C. Reception of the PC, signal direction from PC to unit (only required for active Hardware handshake) Reception of the unit, signal direction from unit to PC (only required for active Hardware handshake) N.C.
Page 32: Interface Reconfiguration
Ext. Control: Computer Command Range Unit Hardware Read If echo is on, the interface confirms each incoming character by sending the same character back to the sender. The <PCx> interface parameters can be adjusted via software and the command . These settings can be saved with the <SS>...
Page 33: Interface Reconfiguration
Ext. Control: AI Interface (Option) Command Range Unit Hardware Read <PCx> Interface parameters are configured via software using the command . The settings can be saved with the <SS> command Interface Reconfiguration In case, the user has forgotten the active setup, there are two ways of reconfiguring the interface: •...
Page 34: Pin Assignment Ai Interface
Ext. Control: AI Interface (Option) AI I SSIGNMENT NTERFACE No (BD25) Name Function analog out Monitor set point U analog out Monitor set point I analog out Monitor actual value P analog out Monitor actual value OVP digital in Soft-Interlock Interlock function (Caution: Interlock does not correspond to the machinery directives) -nc- digital out...
Page 35: Set Point I
Ext. Control: AI Interface (Option) Example: EPS/MP at 600 V output voltage, AI is adjusted to 10 V, desired output voltage = 100 V. = 10 V 100 V ÷ 600 V = 1,667 V Set Point I (I Set point output current. The set point refers to the rated voltage of the unit.
Page 36: Analog Output Ovpmon (U )
Present set point for over voltage protection. Measurement value refers to the rated voltage of the device + 20%. Example: EPS/MP at 600 V output voltage, AI adjusted to 10 V, voltage at output U = 2 V. Signal refers to 600 V + 20% = 720 V.
Page 37: Const. Voltage Mode (Cv)
EXT. CONTROL: ETHERNET (LAN) To communicate with the EPS/MP via network, it is necessary to assign an IP address to the device first. In delivery status, the device automatically draws an IP from the network. In its practical operation, this behavior is unfavorable, because after each activation the device has a new IP address.
Page 38: Monitoring The Device Via Browser
Ext. Control: Ethernet (LAN) ONITORING THE DEVICE VIA BROWSER The user interface opens via direct request of the IP address: http://xxx.xxx.xxx.xxx. The item menu ‚Control‘ opens the control of the unit. Java must be supported by your browser to control the device. When controlling the device via browser, another control via telnet must not be active! ONTROLLING THE DEVICE VIA...
Page 39: Controlling The Device Via Browser
Ext. Control: USB ONTROLLING THE DEVICE VIA BROWSER The user interface can be opened via IP address: http://xxx.xxx.xxx.xxx. The menu ‚Display‘ opens the monitoring of the unit. Java must be supported by your browser to control the device. Displayed are all present measurement values, which are updated every 2 seconds.
Page 40: Data Log Function (Option)
Data Log Function (Option) • sending the command <PCx> from one of the other interfaces • using the display to configure the interface Interface Parameters DATA LOG FUNCTION (OPTION) The device has a data log function. A memory card may be used as data logger. All measurement values will be saved, separated by tabulators, in a text file.
Page 41: Commands
Script Mode setup is invalid (e. g. IA 40 at a 10 A unit). To return to the file selection menu, the rotary pulse encoder or the button Display Standby must be pushed again. The script has been loaded and can be started by pushing the button The last five commands of the script are displayed in the field ‚Preset’.
Page 42 Script Mode # UI mode U 10 # Output voltage 10 V # Output current 1 A # Activate output DELAY 200 # Wait 200 ms U 100 # Adjust output voltage to 100 V DELAYS 10 # Wait 10 seconds STANDBY # Deactivate output I - Set point output current...
Page 43 Script Mode # UI mode U 100 # Output voltage 100 V I 10 # Output current 10 A LOOPCNT 10 # Start address # Activate output DELAYS 10 # Wait 10s STANDBY # Deactivate output DELAYS 10 # Wait 2s PMAX - maximum output in UIP mode Maximum output for the UIP mode.
Page 44 Script Mode USER - Set points current and voltage This command generates the set points for current and voltage by using the internal table. Thereby, different UI WAVE characteristics can be created. The tables can be created beforehand by using the command WAIT - Waiting for user action Standby The program is stopped until the user pushes the button...
Page 45: Controller
Controller WAVELIN WAVELIN WAVE With the command, the interim values between the fulcrums are linear interpolated, with the command they are layered (see example). Characteristics which are not constant or negative in their course are accepted but the behavior of the unit may not be predicable. Example: ;...
Page 46: Controller Structure Pvsim Mode And User Mode
Controller Improper adjustment of the controller can lead to controller oscillations which may damage connected devices! ONTROLLER TRUCTURE ODE AND The current set point is calculated from the output voltage and a table. This set point stands for the input signal of the PID controller after it was subtracted from the actual value.
Page 47: Controller Parameters
Controller The output signal is limited to the voltage set point. The current set point of the power supply is permanently set to . In UIR mode the voltage is regulated while the current is fixed. soll ONTROLLER PARAMETERS common differential equation of a PID controller: Controller deviation ...
Page 48: Sense Mode
(voltage drop per line x current) If thus you paid attention to the points stated above, oscillation occurs through load or power induction and complex load situations, please contact our company EPS. ISTRIBUTION WITHOUT ENSOR ONDUCTOR To ensure a proper use, a central load distribution situation is essential.
Page 49: Appendix
Appendix APPENDIX VDE 0701 QUIVALENT LEAKAGE CURRENT MEASUREMENT ACCORDING TO The equivalent leakage current measuring according to DIN VDE 0701-1 may deliver results beyond the norm. Cause: Measurements are primarily performed on so-called EMC-filters at the AC input of the units. These filters are built symmetrical, that means capacitors are installed between L1/2/3 and PE.
Page 50 Appendix Note: The illustration shows the measurement method for two-phase power supplies. In the three-phase version, phase N is replaced by L2 and/or L3.
Page 51: Notes
Notes NOTES...
Page 52 Notes...
Page 53 Notes...

This manual is also suitable for:

Rs 485