TEXIO PAR-A Series Instruction Manual Download Page 31

 

23 

7-3-1. Turning on/off MAIN OUTPUT key through external contacts 

  When S6 shown in Fig.10 goes active (i.e., pins 3 and 8 are short-circuited), the MAIN OUTPUT 

key  is  turned  on.    Note  that  the  MAIN  OUTPUT  key  is  always  active,  except  an  alarm  status, 

when pins 3 and 8 are short-circuited. 

  Fig.11 shows the relationship between S6 and the MAIN OUTPUT key on the front panel.   

 

 

 

 

 

 

 

 

Fig.11 Relationship between S6 and the MAIN OUTPUT Key on Front Panel. 

 

7-3-2. Selecting PRESET 1 key to PRESET 4 key through external contacts 

  It is possible to select PRESET 1 key to PRESET 4 key by turning on (i.e., short-circuiting) S2 to   

S5 shown in Fig.10. 

  If some PRESET is selected with the external contacts, the PRESET keys on the front panel are   

not functional. 

  When PRESET 1 key to PRESET 4 key are selected simultaneously with the external contacts, 

the order of priority is PRESET 1 key > PRESET 2 key > PRESET 3 key > PRESET 4 key. 

 

7-3-3. Detecting OHA signal 

  If  the  exhaust  air  temperature  becomes  too  high  and  an  OHA  (overheat  alarm)  occurs,  pin  2 

shown  in  Fig.10  goes  Low.    The  OHA  function  may  be  checked  with  a  voltmeter  connected  as 

shown in Fig.10.   

 

7-3-4. Inputting alarm signal through external contacts 

  It is possible to bring the PAR-A power supply unit into the alarm status by turning on S1 shown in Fig. 

10 (i.e., short-circuiting pins 1 and 2).    It is possible to maintain the alarm status by keeping S1 on. 

  In the alarm status, the MAIN OUTPUT key is turned off forcedly like the OHA.     

  See section "5-3. Changing Source Voltage". 

 

 

  The characters "EAr" are displayed on the current indicator.   

 

7-3-5. Inputting several alarms through external contaxts 

  If pins 1 of the PAR-A power supply units are connected with each other and pins 2 are also   

connected with each other in a system with several PAR-A power supply units, all units enter the 

alarm status when an OHA occurs in some unit. 

<Precautions> 

It is possible to connect a maximum of 5 units using J1.   

When  the  S6  is  turned  off  through  external 
contact control, output is turned off. 

Output  is  turned  on  with  the  MAIN 
OUTPUT key on the front panel. 

         

S6

 

 

ON 

Power output 

ON 

When  the  main  output  is  turned  on  through 
external  contact  control,  operation  of  the 
MAIN  OUTPUT  key  on  the  front  panel  is 
ignored. 

Summary of Contents for PAR-A Series

Page 1: ...INSTRUCTION MANUAL REGULATED DC POWER SUPPLY PAR A SERIES PAR18 6A PAR36 3A OPTIONAL INTERFACE UNITS FOR PAR A SERIES IF 41RS IF 41GU IF 41USB B71 0038 21...

Page 2: ...edures 17 6 1 4 Fine adjustment of voltage or current 17 6 2 Output Functions 18 6 2 1 Method of turning on or off the output with the MAIN OUTPUT key 18 6 2 2 Method of turning on or off the output w...

Page 3: ...urrent 41 8 7 3 Turning on off MAIN OUTPUT key 42 8 7 4 Turning on off OUTPUT SELECT key 42 8 7 5 Selecting preset memory 42 8 7 6 Status output request 42 8 7 7 ID output request 43 8 7 8 Local setti...

Page 4: ...product show the warning and caution items required to safely use the product The following pictorial indication and warning character indication are provided Pictorial indication Some part of this p...

Page 5: ...ble may result in electric shocks electrocution or a fire If the supplied AC power cable is damaged stop using it and contact your dealer or our distributor Using the product with the damaged AC power...

Page 6: ...the product in or around a place where combustible gas explosive gas or vapor is produced or stored Disobedience to this warning may result in explosion or a fire Do not use the product in or around...

Page 7: ...sed for a long period of time disconnect the AC power cable from the AC outlet Calibration The product has been inspected under strict quality control before shipment It is however subject to change i...

Page 8: ...with its performance and specifications stable For consultation about the product calibration call the dealer or the company or each sales office where you bought the product Daily maintenance When yo...

Page 9: ...m It is possible to control all power supply units in the system and read back the current and voltage values from the computer 1 3 Features 1 3 1 PAR A power supply unit With a CPU and four preset me...

Page 10: ...ble to construct a system containing PWR series power supply unit s 1 3 3 IF 41GU Option The IF 41GU is an optional board which features higher transmission rate than the IF 41RS and may control more...

Page 11: ...ource voltage Load variation 5mA For 0 to 100 variation Ripple noise 1 5mA Measured in the RMS method using 5Hz to 1MHz signals Temperature Coefficient 150ppm at rated output current Voltage current i...

Page 12: ...e Primary casing AC1500V for 1 minute Primary secondary AC1500V for 1 minute Insulation resistance Primary casing primary secondary 10M or more at DC500V Secondary casing 5M or more at DC250V To earth...

Page 13: ...the same as those of the local bus PW bus Communication Specifications of IF 41GU GP IB Block GP IB Electrical specifications Conforms to IEEE488 1978 Mechanical specifications Conforms to IEEE488 197...

Page 14: ...potential difference may be produced between the frame GND and output terminals and COM terminal If the frame GND and output terminals or COM terminal are shorted in this condition the PAR A unit and...

Page 15: ...is used It is possible to change the value of a digit of the seven segment LEDs indicated by a red LED below it with the rotary encoder 12 2 Current indicator 4 digit red LEDs Indicates the set curren...

Page 16: ...Green and A key Green These keys are used to select which value to change with the rotary encoder 12 Set voltage or set current 8 MAIN OUTPUT key Red Turns on or off a channel selected with the OUTPU...

Page 17: ...ver the set voltage is output through the output terminals of the PAR A power supply unit 16 Negative output terminal Negative output terminal of power supply 17 Negative remote sensing terminal Negat...

Page 18: ...The unit has a handle at the top Hold it to move the unit If the unit is mounted in a rack and the handle is unnecessary it may be removed 23 Feet The unit has four feet on the bottom plate If the un...

Page 19: ...orporates no optional board 25 AC power inlet Connect the AC power cable to this inlet to supply commercial AC power to the unit 26 Fuse holder There is a primary side protection fuse in the fuse hold...

Page 20: ...late Fig 3 Bottom Plate 30 AC source voltage selector switches 1 and 4 These switches change the voltage of AC power source 100V 115V 200V or 230V See section 5 4 Changing Source Voltage below Front p...

Page 21: ...The ID number of the PAR A power supply unit is displayed he ID num ber of the PW A pow er sup ply unit is disp laye d Model name ID Model name ID PAR18 6A 15 PAR36 3A 16 ID number 4 The interface boa...

Page 22: ...s 5 2 Overheat Alarm OHA If the air inlet port in the top panel or air outlet port in the rear panel is blocked or the PAR A unit is used at a temperature higher than the upper limit of the allowable...

Page 23: ...witch is switched off and connect the power cable to the AC power inlet securely Changing the source voltage 1 Make sure that the AC power cable is disconnected from the unit 2 Select the intended sou...

Page 24: ...rminal and a resistor for discharging this capacitor when the output is turned off When the PAR A unit is used to charge a battery connect a diode in series as shown in Fig 7 below to prevent electric...

Page 25: ...ocedures Operation procedures 1 Press the A key The LED of the key is lit up in green If you press the A key again in the condition where the LED is on the LED goes out and the operation in step 4 is...

Page 26: ...th the OUTPUT SELECT key If the off OUTPUT SELECT key is pressed while the MAIN OUTPUT key is on the output is turned on The lamp is lit in green in the CV operation mode or in red in the CC operation...

Page 27: ...PUT key is on 2 Set voltage and current are displayed on the voltage and current indicators 3 Press the PRESET key of the preset memory whose data should be changed The LED of some PRESET key 1 to 4 i...

Page 28: ...not guaranteed if the power switch is shut off Retry initialization of it fails 6 4 Usage of KEYLOCK LOCAL Key Function This function changes the mode of the PAR A power supply unit key lock mode or l...

Page 29: ...the output terminal resulting in a failure since the sensing terminals are close to the output terminals Fig 8 Output Terminals on Front Panel 6 5 2 Remote sensing connection Connect the wires as show...

Page 30: ...to 7 Used for preset operation when short circuited with pin 3 8 Used for main output operation when short circuited with pin 3 Connect the lead wires with connectors supplied with the PAR A unit wit...

Page 31: ...urs pin 2 shown in Fig 10 goes Low The OHA function may be checked with a voltmeter connected as shown in Fig 10 7 3 4 Inputting alarm signal through external contacts It is possible to bring the PAR...

Page 32: ...when an OHA occurs in it or an alarm is input to it through the external contacts 8 1 Connecting IF 41RS It is possible to connect a maximum of four PAR A power supply units with the IF 41RS units bui...

Page 33: ...modular cables Any models may be connected In this application the send messages must conform to the transmission and reception procedures using the IF 41RS shown in section 8 4 Transmission and Recep...

Page 34: ...up If setting of the voltage and current are with the rotary encoder and setting of the voltage and current using PRESET 1 to 4 are executed together in the master operation the voltages and currents...

Page 35: ...y select PRESET 4 key with VARIABLE key PWR power supply units may be used as the slave units Precautions Be sure to connect the RT 63 with the PAR A units in the condition where the power switches of...

Page 36: ...GP 620 Master unit REMOTE J1 IN Fig 15 Remote Control Using GP 620 8 2 Connecting IF 41GU IF 41USB It is possible to control the PAR A power supply units using the IF 41GU through the GP IB or USB IF...

Page 37: ...m address 1 Fig 16 Remote Control through GP IB using IF 41GU 8 2 2 Control through USB It is possible to connect a maximum of 32 local bus master units except HUB directly with a computer using USB c...

Page 38: ...address of the PAR A power supply unit It is necessary to assign system addresses to all PAR A power supply units to be remote controlled using the IF 41GU IF 41RS or IF 41USB PC address This address...

Page 39: ...using GP 620 1 to 26 IF 41GU Control thru GP IB Slave 2 to 32 Local bus master 1 0 to 31 IF 41GU IF 41USB Control thru USB Slave 2 to 32 Local bus master 1 0 to 31 The connection methods shown in the...

Page 40: ...1 1 1 0 0 1 0 1 1 1 0 1 1 1 b4 b1 0 1 2 3 4 5 6 7 0000 0 NUL TC7 DLE SP 0 P 0001 1 TC1 SOH DC1 A Q 0010 2 TC2 STX DC2 0011 3 TC3 ETX DC3 0100 4 TC4 EOT DC4 0101 5 TC5 ENQ TC8 NAK 0110 6 TC6 ACK TC9 SY...

Page 41: ...response message or service request Precautions Do not put any spaces among characters However it is possible to put a space among alphanumeric and numeric command characters It is possible to write S...

Page 42: ...F 46 Example 3 Selecting PRESET 1 of the slave unit having the system address of 1 and turning on the main output key using multi commands ENQ A P R 1 ETX 1 E 05 41 50 52 31 03 31 45 0 2 1 E S W 1 2C...

Page 43: ...e characters and block check characters of the message sent by the master unit to the slave unit is correct even though the message contains a syntax error or out of range error The slave unit sends a...

Page 44: ...message to the slave unit Otherwise signal collision may occur in the PAR A transmission path 8 4 4 Acknowledge or negative acknowledge to slave units The master unit must send an acknowledge or nega...

Page 45: ...ress ETX BCC1 Block check characters See 8 4 1 Message structure Command Input command See the command in section 8 7 Details of Commands Input the system address of the PAR A unit whose message is ne...

Page 46: ...Recommended GP IB controller All GP IB controllers made by National Instruments The GP IB cards of other manufacturers will offer trouble free operations However our does not warrant their performanc...

Page 47: ...atus byte Receiving The message Inferpreting The message Processing According to the message Processing including command transmission No message present message present Monitor the status byte at all...

Page 48: ...f response messages Thus some messages may be lost unless all of these response messages are received The IF 41GU IF 41USB may store a maximum of 32 response messages When it receives a new message th...

Page 49: ...urrent These commands set the voltages and currents of PRESET 1 to PRESET 4 If the PAR A power supply unit is turned off and turned on then the voltages and currents set in PRESET 1 to PRESET 4 are lo...

Page 50: ...PR command selects from which preset memory to recall data PRESET 1 to PRESET 4 PR0 PRESET 4 PR1 PRESET 1 PR2 PRESET 2 PR3 PRESET 3 Precautions PR0 serves as the VARIABLE key call command for the PWR...

Page 51: ...nit accepts panel operations However the KEY LOCK LOCAL key is not functional if the LL1 command has been issued The LC1 command may only bring the PAR A unit into the local mode The GP IB messages RE...

Page 52: ...12 Checking controlled unit PW The PW command checks the addresses of the slave units currently specified as the units to be controlled This command is valid only when the IF 41GU IF 41USB is used 8...

Page 53: ...rounded off The value is multiplied by 100 The value is always displayed in a four digit integer Example 11 1 000 is expressed as 0100 12 340 is expressed as 1234 and 12 345 is expressed as 1235 A va...

Page 54: ...Preset 3 OUTPUT SELECT key ON OFF 0 OFF 1 ON 1 0 0 0 0 MAIN OUTPUT ON OFF 0 OFF 1 ON System address 8 7 18 Sending ID data Response to the ST3 command MS3 The system address and equipment ID are sent...

Page 55: ...SLV The system address of all slave units connected are displayed in order Only SLV is sent when no units are connected System address 1 is not returned since it is the address of the local bus master...

Page 56: ...power supply unit recovers from the alarm status 2222 1111 or 3333 is displayed in case of an OHA alarm external alarm or both alarms respectively 0000 is displayed after recovering from an alarm stat...

Page 57: ...ring set data MW1 44 Commands for which responses are made No Item Send command Response command page 1 Status request ST0 to 5 MS0 to 5 42 45 46 2 ID request PWID PWID 43 47 Information messages Serv...

Page 58: ...xternal contact control Open pin 1 or 3 and 2 of the external contact control connector Current is set to 0 00 A in the CC mode Increase the set current The OUTPUT SELECT key is not selected The OUTPU...

Page 59: ...51 10 OUTSIDE DEMENSIONS 18 4 380 4 5 137 1 5 1 5 8 5 124 15 4 138...

Page 60: ...7F Towa Fudosan Shin Yokohama Bldg 2 18 13 Shin Yokohama Kohoku ku Yokohama Kanagawa 222 0033 Japan https www texio co jp...

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