USER'S MANUAL
ZERO-UP
200W/400W/800W
Programmable DC Power SuppliesConstant Voltage/Constant Current
TESTING EQUIPMENT 65SA
LISTED
US
C
TUV Rheinland
geprufte Sicherheit
..
DENSEI-LAMBDA
Built-in RS232 & RS485 Interfacewith GPIB option.
Page 1: ...RO UP 200W 400W 800W Programmable DC Power Supplies Constant Voltage Constant Current TESTING EQUIPMENT 65SA LISTED US C TUV Rheinland geprufte Sicherheit DENSEI LAMBDA Built in RS232 RS485 Interface...
Page 2: ...of the Low Voltage Directive 73 23 EEC and the EMC directive 89 336 EEC for Electrical Equipment used in Measurement Control and Laboratory environments and carries the CE mark accordingly Our importe...
Page 3: ...Supplemental characteristics 3 1 General 3 2 Initial inspection 3 2 1 Mechanical inspection 3 2 2 Preparation for use 3 3 AC source requirements 3 4 Cooling and placement 3 5 Rack mounting 3 6 Power c...
Page 4: ...4 9 Last Setting memory 4 4 10 Output Voltage Current programming by external resistor 4 4 11 Output Voltage Programming by external voltage 4 4 12 Output Current programming by external voltage 4 4...
Page 5: ...ervice Request 6 1 Introduction 6 2 Units under warranty 6 3 Periodic Maintenance 6 4 Adjustment and calibration 6 5 Part replacement and repairs 6 6 Fuse ratings CHAPTER 6 Maintenance USER S MANUAL I...
Page 6: ...errors contained in this document or for incidental or consequential damages in connection with the furnishing performance or use of this material No part of this document may be photocopied reproduc...
Page 7: ...trical ground before an other connection is made Any interruption of the protective ground conductor or disconnection of the protective earth terminal will cause a potential shock hazard that might ca...
Page 8: ...quipment Do not proceed beyond a CAUTION sign until all indicated conditions are fully understood and met FCC COMPLIANCE NOTICE Note This equipment has been tested and found to comply with the limits...
Page 9: ...tapping screws supplied with the unit Refer to Fig 1 1 for details Fig 1 1 Terminals cover assembly REAR PANEL LOAD WIRES PLASTIC COVER WARNING Hazardous voltages may exist at the output terminals of...
Page 10: ...ilt in RS232 or RS485 communication port in the power supply In a GPIB system the GP485 controller can control up to 31 ZUP units in a single GPIB address Output connections are made to rear panel bus...
Page 11: ...se the cable only with plug approved by the national safety standards of the country of usage In cases where load connection at the front panel is required optional Front Panel output Jacks for a load...
Page 12: ...0 minute warm up 50mS From zero volts to full scale resistive load current setting at max 50 100 5 6 2 7 74 77 15 15 15 15 15 ZUP60 3 5 0 3 5 5 2 9 1 4 75 79 0 6 7 5 2 9 1 4 76 80 0 10 15 2 9 1 4 74 7...
Page 13: ...SCREWS CONDUCTED EMI RADIATED EMI SERIAL OPERATION PARALLEL OPERATION COOLING WITHSTAND VOLTAGE ISOLATION RESISTANCE ZUP60 7 3 2 3 2 3 2 3 2 3 2 ZUP60 3 5 2 9 2 9 2 9 2 9 2 9 ZUP36 12 ZUP36 6 ZUP20 20...
Page 14: ...oltage following 30 minute warm up O 0 01 2mV change in output over 8 hour interval under constant line load and ambient temperature following 30 minute warm up 50 ZUP36 24 ZUP20 40 ZUP10 80 ZUP6 132...
Page 15: ...V drop on each load wire RS232 and RS485 Built in IEEE488 Optional UL 3111 1 EN61010 1 EN 61326 1 IEC 61326 1 FCC part 15 class A Master slave method up to 5 units refer to instruction manual Up to 2...
Page 16: ...are listed below 1 EVALUATIONDATA Typicalperformance of the power supply 2 RELIABILITY DATA Reliability performance of the power supply 3 IEC 1000 DATA Performance of the power supply under IEC 1000...
Page 17: ...e must be within the power supply specification DO NOT apply power before reading paragraph 3 3 The ZUP series can be operated from a nominal 100V to 240V single phase 47 63Hz The input voltage range...
Page 18: ...efore making or changing any rear panel connection Make sure that all connections are securely tightened before applying power 3 7 CONNECTING THE LOAD 3 7 1 Selecting wire size Twofactors must be cons...
Page 19: ...Local Sensing The wires should be properly terminated with terminals securely attached DO NOT use non terminated wires for load connection at the power supply Fig 3 1 illustrates the connection of a s...
Page 20: ...ne supply each load should be connected to the power supply s output terminals using separate pairs of wires It is recommended that each pair of wires will be as short as possible and twisted or shiel...
Page 21: ...ded to ground the output terminal as close as possible to the power supply output Always use two wires to connect the load to the power supply regardless of how the system is grounded The external con...
Page 22: ...ntrol circuit Reference voltage for Constant Voltage control connected to VCVP pin except external voltage or resistive programming Input of the Constant Voltage control circuit Open collector output...
Page 23: ...nal control connector is configured for Local sensing and no external On Off control Refer to Fig 3 6 below for the default configuration description The default configuration is Local sensing Rear pa...
Page 24: ...5 0 5 _ _ 350 0 1 _ 290 0 1 _ 1 _ 124 0 131 0 48 0 11 0 Mounting Holes Tap M4 x 4 marked A See note 1 Notes 1 Mounting screws must not protrude more than 6mm into the power supply 2 Use M6 or 1 4 scre...
Page 25: ...LE 11 0 1 0 _ 350 0 1 _ 290 0 1 _ 139 5 107 5 Mounting Holes Tap M4 x 4 marked A See note 1 Notes 1 Mounting screws must not protrude more than 6mm into the power supply 2 Use M8 or 5 16 screw for loa...
Page 26: ...800W series ZUP200 L and ZUP400 L Up to 20A output current via front panel jacks CAUTION ZUP800 front panel output is protected against overcurrent by 25A 125V Fast acting fuse For continued protectio...
Page 27: ...ious modes of operation are described in this chapter including remote analog control via the rear panel For computer control via the Serial port RS232 or RS485 refer to chapter 5 CHAPTER 4 OPERATING...
Page 28: ...after completion of adjustment CV LED indicates that the power supply is regulating it s output at a constant voltage CC LED indicates that the power supply is regulating it s output at a constant cu...
Page 29: ...e pushbutton consecutively Adjustment is made by rotating the Adjust knob Makes selection between Over voltage or Under voltage adjust mode Adjustment is made by rotating the Adjust knob Main function...
Page 30: ...1 General 4 3 2 Prior to operation 4 3 3 Constant Voltage check The following procedure ensures that the power supply is operational and may be used as a basic incoming inspection check Check that th...
Page 31: ...upply s voltage rating Adjust the output voltage toward it s minimum and check that the output voltage cannot be decreased below the UVP setting Set the load current to 50 of the supply rating Momenta...
Page 32: ...otate the ADJUST knob to set the output current At this mode approx 6 turns are required to adjust the entire range Approx 3sec after the adjustment the display returns to show the actual voltage and...
Page 33: ...alue Rotate the ADJUST knob to set the over voltage protection level Approx 3sec after the adjustment the display returns to show the actual voltage and current 4 In order to see the value of the OVP...
Page 34: ...3sec on FOLD pushbutton will disable the Foldback protection circuit and enable the output The power supply will restore operation to Constant Voltageor Constant Current mode depending on the load cha...
Page 35: ...x 3sec the display will continuously cycle between AS ON auto start on and AS OFF auto start off approx every 3sec Releasing the OUT pushbutton while AS OFF is displayed will set the power supply to s...
Page 36: ...ohm NOTE Resistive programming is possible for local and remote sensing Fig 4 5 Constant voltage resistive programming 2 2 LS LS S S LS LS S S On Off On Off 0 4K programming resistor 0 4K programming...
Page 37: ...mming source is less than 2uA The source resistance should be less than 10Kohm to avoid degradation of offset and drift specifications Note Full scale is 105 of the rated output current The Com pin at...
Page 38: ...PPLY _ LS LS S S 2 2 14 14 1 1 13 13 LS LS S S On Off On Off COM COM P P VRFV VRFV VCVP VCVP VRFI VRFI VCCP VCCP RCVP RCVP To other slaves RCCP RCCP NOTE With local sensing it is important to minimize...
Page 39: ...ER SUPPLY SLAVE POWER SUPPLY SLAVE POWER SUPPLY _ _ LS LS S S LS LS S S On Off On Off COM COM P P VRFV VRFV VCVP VCVP VRFI VRFI VCCP VCCP RCVP RCVP To other slaves RCCP RCCP S S S S LS LS S S LS LS S...
Page 40: ...ut to prevent reverse voltage during start up condition or in case one of the units shuts down Each diode should be rated to at least the power supply s output current Refer to Fig 4 12 and 4 13 for t...
Page 41: ...es connection for bipolar output S S LS LS LS LS S S LOAD COM POWER SUPPLY POWER SUPPLY _ _ _ 3 2 Remote programming at series operation for bipolar output voltage 1 Programming by external voltage Th...
Page 42: ...ossible to define a hierarchy in multiple supply systems by enabling any N 1 unit by the Output Good signal of the N unit In this structure failure of the N unit will cause all the following units to...
Page 43: ...S232 release the REM pushbutton while rs232 is displayed Toselect RS485 release the REM pushbutton while rs485 is displayed 4 Approx 3sec after releasing the REM the display returns to show the actual...
Page 44: ...ation Up to 31 ZUP units can be connected to the RS232 control as shown in Fig 5 1 5 3 REMOTE PROGRAMMING VIA RS232 5 3 1 Introduction 5 3 2 Rear panel connectors pinout IN RXD RXD TXD TXD RXD _ RXD _...
Page 45: ...NC403 NC401 5 3 4 Linking power supplies NC405 Fig 5 3 RS232 cable with DB 25 connector NC403 Fig 5 4 RS232 cable with DB 9 connector NC401 Fig 5 5 ZUP units linking cable EIA TIA 568A SHIELDED CONNEC...
Page 46: ...supplies are linked in the same way as described in par 5 3 4 The ZUP command set is divided into four categories as follows 1 ID Control 2 Initialization Control 3 Output Control 4 Status Control Th...
Page 47: ...0 Sets the power supply address ADR is followed by the address which can be 01 to 31 Sets the power supply to local or remote mode This command is active when the unit is either in Local or Remote mod...
Page 48: ...500 Example CUR3 000 CUR07 50 60 00 4 CURn 3 VOL Sets the output current in Ampers This programmed current is the actual output current at constant current mode or the current limit at constant volta...
Page 49: ...FLD0 Release the foldback protection FLD2 Cancel the foldback protection When the foldback protection is activated FLD0 will release the protection and re arm it while FLD2 will cancel the protection...
Page 50: ...ration In addition to the normal operation data the register holds an alarm bit which indicates that one of the alarm fault register bits is set The register is automatically updated and reading it do...
Page 51: ...rror Codes Register The error codes register records errors that occurred during the programming of the power supply Any set bit in this register causes the prog bit in the alarm status register to be...
Page 52: ...average command processing time of the ZUP Series is 15mSec It is not recommended to send strings of commands to the ZUP power supply without considering the processing time For query commands wait un...
Page 53: ...ed in power supply address 20 5 7 SERVICE REQUEST 5 7 1 Service Request SRQ 5 7 2 Service Request message 5 7 3 Service request enable disable commands 48 Command Description 1 SRVn Enable or disable...
Page 54: ...o internal adjustment or calibration are required Units that are returned for service will be calibrated at the service facility There is NO REASON to open the ZUP cover As repairs are made only by th...
Page 55: ...39 40 41 48 S multiple loads 15 16 M maintenance 49 ac cables ac fail accessories address adjustment alarm status amps display auto parallel automatic start baud rate bipolar voltage buffer overflow e...
Page 56: ...ashi gotanda Shinagawa ku Tokyo Japan 141 0022 TEL 81 3 3447 4411 FAX 81 3 3447 7784 http www densei lambda com China Densei Lambda K K Beijing Office Room B1911 Hui Bin Offices No 8 Beichen Dong Str...