IT6720

IT6720 Digital Control Power Supply User ’s Manual Access www.itechate.com for more products information WARNING Safety Regulations To avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel only. To avoid injuries, always disconnect power, discharge circuits, and remove external voltage sources before touching components. KEEP AWAY FROM LIVE CIRCUITS. We cannot accept responsibility for any direct or indirect financial damage or loss of profit that might occur when using the power supply. The instrument chassis and cover must be connected to an electrical ground. Certification We certify that this product met its published specifications at time of shipment from the factory. Notice The information contained in this document is subject to change without notice. Warranty This hardware product is warranted against defects in material and workmanship for a period of ONE year from date of delivery. IT6720 power supply for use with a hardware product and when properly installed on that hardware product, are warranted not to fail to execute their programming instructions due to defects in material and workmanship for a period of 90 days from date of delivery. During the warranty period our company will either repair or replace products which prove to be defective. Our company does not warranty that the operation for the software firmware or hardware shall be uninterrupted or error free. For warranty service, with the exception of warranty options, this product must be returned to a service facility designated by our company. Customer shall prepay shipping charges by (and shall pay all duty and taxes) for products returned to our place for warranty service. Our company shall pay for return of products to Customer. Limitation of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the customer, customer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation and maintenance. Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) The ITECH product you have purchased is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE) and, in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste. Please utilize your local WEEE collection facilities in the disposition of this product and otherwise observe all applicable requirements. Safety Symbols Connect it to safety earth ground using the wire recommended in the user’s manual. High voltage danger The symbol on an instrument indicates that the user should refer to the operating instructions located in the manual. About IT6720 With widest voltage and current range, IT6720digital DC power supplies are applied in many fields. With max power 100W and output adjustable in 60V/5A, auto control voltage/current slew rate, power rate up to three times rapid than other similar products, a unit can replace three models (60V*1.6A/ 32V*3A/ 20V*5A), reduce your repeat investment. Example: When you set the output voltage as 60V, because the max power of IT6720 is 100W, so the max output current is 100W/60V=1.6A. When you change the output voltage to 30V, the output current is 100W/30V=3.2A. Calculate according to the above way when the output voltage is 20V, the output current should be 5A, but as the max rating current of IT6720 is 8A, so the final max output current is 5A. V 60 Power 100% 40 20 1 2 3 4 5 I IT6720 output curve Function
Fully digital control
High resolution 10mV/1mA in Full range
Low ripple and noise
Software calibration
Bright and easy to read display (VFD)
Constant current and constant voltage output
Selectable remote control keypads
High reliability OVP/OCP/OTP protection
Output on/off control
Best performance /price ratio
Storage for 4*100 preset voltage and current output Panel Layout Voltage setup Indicator CC mode Indicator Voltage Value CV mode Indicator Step B + Memory B OCP Indicator Step A + Memory A OVP Indicator Step C + Memory C Memory mode Indicator Step D + Memory D Keyboard Lock Indicator Current Value Shift Indicator Output OFF Indicator Memory save (Shift) Right arrow + Memory B Button Left arrow + Memory A Button Function Setup (Shift) Keyboard (Shift) Rotary Encoder Enter + Memory C Button Output ON/OFF Button Voltage / Current Selector + Memory D Button Setup Display (Shift) Shift Button Air flow input Output + Output – Main Power ON/OFF Ground Quick Start Check out Confirm whether the power supply has been destroyed in transportation, if there is any flaw, please contact the vender. Confirm whether the AC input voltage of IT6720 comply with the standards of your country or region. Note: If switching input voltage, operate through the back panel switch (110V/220V). Preset voltage After the check of the above matters, power on by press IT6720 60V/5A/100W ITECH Auto Range DC Power Supply Setting the voltage Press to light up the voltage setup indicator B. It means IT6720 is in voltage set mode, shown as fig 1. B Press A light up the voltage setup indicator B. Now the voltage will rise/decline 1V once you rotary the knob . Set the voltage to 12V. V A D A CC OVP OCP Lock Prog OFF Shift CV CC OVP OCP Lock Prog OFF Shift Step indicator B ITECH Setting the current Press D V/A to light up the current setup indicator A. IT6720 is in current set mode, shown as fig 1. Press A to adjust the setup B indicator to . Now the current will rise/decline 1V once you rotary the knob . Set the current to 4A. C B CV IT6721 60V/5A/100W Auto Range DC Power Supply V A B C D A Step indicator A Preset current indicator Enable output Press On/Off to enable the IT6720 output. Voltage and current settings will be wink for three seconds，and after that , the display value of numerical display will change from the set value to actual measured voltage and current value. Power off lights will be turned off which means the power is in output state. Press On/Off again, you will shut power supply’s output. ITECH IT6720 60V/5A/100W Auto Range DC Power Supply V A B C D A CV CC OVP OCP Lock Prog OFF Shift Output off indicator Step value for Cursor Position Cursor position Step voltage Step current A ------ 1A B 1V 0.1A C 0.1V 0.01A D 0.01V 0.001A Check the set voltage and current value The power supply usually displays the actual voltage and current values. When you want to check the preset voltage and current values, the unit will display automatically settings, press twice, the settings will be displayed for three seconds. Key lock function This function can prevent error operation by unauthorized person. Press , after the was lit on, press , will be lit on, which means all keys on the panel except and . Repeat above operation, key lock function will be disabled. ITECH IT6720 60V/5A/100W Auto Range DC Power Supply CV CC OVP OCP Lock Prog OFF Shift CV CC OVP OCP Lock Prog OFF Shift OVP function Press Shift , and press D V/A for three seconds, now the panel displays OVP, shown as fig 4. B Use A and to set OVP value. V A B OVP voltage value Press C to enter into OCP setting interface after setting OVP B value, use A and to set the OCP value. If the OVP and OCP settings are lower than the actual voltage/current value, the output of power supply will be turned off. The default settings of IT6720 are OVP=61V, OCP=5.1A. D A OCP function NOTE C ITECH IT6720 60V/5A/100W Auto Range DC Power Supply V A B C D A OCP current value Key sound (BEEP) Press C to enter the BEEP setting Interface after finished the OCP setting, select the ON/OFF state with the knob . ON indicates there is key sound, OFF means no. ITECH IT6720 60V/5A/100W Auto Range DC Power Supply V A B C D A Power address (ADD) ITECH Auto Range DC Power Supply V A B ITECH Press C to enter into GRP interface B after setting the OCP value, use A and to select store group. IT6720 allows customers to store 100 groups with A/B/C/D four set value for every group. Press C to confirm the chosen group and end the setup mode. C D A Store group setting (GRP) OVP OCP Lock Prog OFF Shift CV CC OVP OCP Lock Prog OFF Shift CV CC OVP OCP Lock Prog OFF Shift IT6720 60V/5A/100W Auto Range DC Power Supply V A CC IT6720 60V/5A/100W C Press to enter the ADD setting interface after finishing the BEEP B setting, select the A and to enter store address setting. ADD range: 0~30，press C to confirm。 CV B C D A Store operation In the normal working mode, set the voltage/current value to be stored. Press Shift and A , now the Cursor A B C D will wink together. Press B A C D V/A to save it. any key in Recall operation Press Shift and B , the indicator Prog will be lit on, which means that B C IT6720working in the shortcuts mode. Press any key in A recall the preset voltage/current value which has been stored. D V/A , When the power supply is on recall operation, that means all you can recall the B C D V/A to parameters from the store group. Press any key of A recall the stored parameter. B C D V/A When the power supply is on recall operation A are disabled, they only can be used with Shift key. Press Shift , and press B to exit recall function.CC Faulty disposal If the outputs is disabled: 1: Check whether voltage and current settings are zero, if so, reset voltage and current value. 2: Check whether the indicator OFF is lit on, if so, press outputs. On/Off to enable the 3: Check whether the indicators OVP OCP are lit on, if so, please reset according to the mentioned OVP/OCP/OCP means. If the keypad is disabled, check whether the indicator so, unlock the keypads as the above means. Lock is lit on, if 6: Specifications Specs Specifications Output Rating Load Regulation Line Regulation Programming Accuracy Read back Accuracy IT6720 Voltage 0~60V Current 0~5A Power 100W