Summary of Contents for KEISOKU GIKEN RC-02A
- Page 1 RC-02A O P E R A T I O N M A N U A L R i p p l e C o n v e r t e r L O A D E D G E / S T A T I O N...
- Page 2 RC-02A Quality Assurance Provision This product passed our close product inspection. When it did not satisfy an early purpose, specifications by trouble after the delivery in a year, we repair it gratis in the case of the responsibility in our production. Please report to agency or us. We repair it in our factory. About measurement precision, I guarantee it for six months after the delivery.
- Page 3 RC-02A For your safe use of this Product This section describes the Handling Instructions when you use this Product in safety. You are requested to understand and follow these instructions without fail. It is not our responsibility for any accidents caused by the ignorance of the instructions or improper handling or operation.
- Page 4 RC-02A Input Power Do not input the Volt. other than specified for this product. (The input rated for this product is AC100V-240V 50/60Hz) And Do not used the AC Power Cable that is attached to this product.(Rated of the attached Power Cable in Japan is AC100V）Use the proper cable that meets the Volt.
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Page 5: Maintenance
Do not use the connector of this product for any purpose that is not described in this manual. Do not apply Volt. that exceeds the specifications. Repair / Adjustment The Adjustment and Calibration can be done by Keisoku Giken. Contacts or our distributor. Outline 1-5... -
Page 6: Safety Symbols Used In This Manual
RC-02A Safety Symbols used in this Manual To used this Product correctly and safely, the following symbols are used in this Manual and this Product. Please review the following to understand the meaning of each symbol and us this Product with cake about the safety. - Page 7 RC-02A Preface Index of this Manual This Manual describes the following contents. Chapter 1. Outline The Outline and the features of this unit is described. Chapter 2. Ripple/Noise measurement The method for measuring Ripple/Noise is described. Chapter 3. Connections Cautions about connections to maximize the true potential of this method are described.
- Page 8 RC-02A INDEX For your safe use of this Product Ⅰ Safety Symbols Ⅳ Preface ------------------------------------ Index of this Manual ------ Check Items when you unpack------- 1 1. Outline ---------------------------------------------------------------------------- 1.1 Outline 1.2 Features 1.3 Options 2. Ripple/Noise measurement --------------------------------------------------------------- 2.1 Terms 2.2 How to separate Ripple component...
- Page 9 RC-02A 6. Specifications ----------------------------------------------------------------------------------------- 6-1 6.1 Specifications of Ripple/Noise measurement 7. Maintenance/Calibration -------------------------------------------------------------------------- 7-1 7-1 Cleaning 7-2 Calibration 7-3 Storage Outline 1-9...
- Page 10 RC-02A 1. Outline 1.1 Outline RC-02A is an optional board used in Keisoku Giken’s LOAD EDGE/STATION Series electronic load, capable of measuring ripple/noise according to JEITA (Japan Electronics and Information Technology industries Association) standard, and making it possible to measure ripple/noise voltages rapidly.
- Page 11 RC-02A 2.Ripple/Noise measurement Ripple/Noise measurement with this unit is described. NOTE Measured data by using this unit may have an error due to a connecting condition of the signal cable and other use conditions, such conditions resulting from complicated ripple/noise generation mechanism specific to switching power supplies.
- Page 12 Waveform of RIPPLE Volt. is deformed. Fig.2-2 Typical waveform of switching ripple 2.2.2 Separation method with pulse width duty ratio To remove only Spike Noise accurately , RC-02A adopt the Method of Setting a “RIPPLE RATIO” which is defined as t / T ×100（%）...
- Page 13 Result of A1 through A3 ① ③ respectively ② through B3 , if Setting of RIPPLE RATIO ③ RC-02A will regard the Peak Output Waveform as the Peak of Ripple Volt. However if you Increase RIPPLE RATIO gradually ,you will Ripple Ratio (%) find that Measured RIPPLE Volt.
- Page 14 Switching Period (G) but AC Period (F) as a Period to search the peak of RIPPLE Volt.. As you can see Fig.2-5, once the AC Frequency (F) is selected as the Measuring Period for RC-02A, there are many Triangle Waveform of RIPPLE and the Peaks of Spike Noise as well as RIPPLE are fluctuated due to AC Ripple.
- Page 15 RC-02A 3. Connections Please review this precautions herein so as to maximize the capability of this unit to obtain accurate data as much as possible. Refer to an manual of LAOD EDGE/STATION Series electronic load to be used to make sure the position of the INPUT connector.
- Page 16 4.1 Items to be displayed With an optional board RC-02A, the following new menu can be displayed. (1) DC Voltage range The currently selected DC volt. range is displayed. The range can be selected one from among 6V(LOW range), 60V(MID range), and 500V(HIGH range).
- Page 17 RC-02A 4.2 Select a function in menu When the optional board - RC-02A is embedded, the following new menu is then added. ・RIPPLE NOISE : settings of ripple/noise measurement can be done. First, select an appropriate menu mode by pressing “MENU” key to display menu selection display.
- Page 18 ・DC+NOISE VOLT-I + (Ripple voltage)/2 ・DC+RIPPLE Supplement ・During the measurement with RC-02A, only lower display can be updated. ・Voltage unit of Ripple/Noise differs according to the LOAD EDGE/STATION Series type of an electronic load as follows: ・LOAD STATION Series Unit is “mV”...
- Page 19 RC-02A 4.4 Setting of sampling rate To minimize the influence of hum noise, the sampling frequency of A/D converter can be selected. This frequency should be set as the commercial frequency of the AC line voltage. (1) How to select sampling frequency To change the sampling frequency, while “MEASURE SETUP”...
- Page 20 RC-02A times, “MODE” and “RV-r” is displayed respectively. Then turn the rotary knob. Choices of “6”, “60”, “500”, “AT” are sequentially displayed. Each indicates the following. “6” 6 Volt fixed range “60” 60 Volt. fixed range “500” 500 Volt. fixed range “AT”...
- Page 21 RC-02A (2) Select Ripple/Noise volt range. Press the rotary knob five (5) times in a row. Once Twice Three times Four times Five times During the operations, as shown above, when the rotary knob is pressed one time and five times, “MODE”...
- Page 22 RC-02A 4.6 Setting of filter and ripple ratio By the same method described in above 4.2, select “RIPPLE NOISE” menu. (1) Limit the frequency band width To limit the frequency bandwidth, press “F1” key to display relevant choices. Press “F1” key or rotate the rotary know to select one and confirm it by pressing “ENT” key or the rotary knob.
- Page 23 RC-02A (3) Select ripple ratio To select a ripple ratio, press “F3” key to display relevant setting menu. Rotate the rotary knob to select the value to be selected and confirm it by pressing “ENT” key or the rotary knob.
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Page 24: Remote Control
RC-02A 5. Remote control Keisoku Giken’s LOAD EDGE/STATION Series electronic load having this optional unit should have GP-IB (conforming to IEEE488.1) and USB (USB1.1) interfaces as standard. From a panel operation, a parameter can be set and each measured value can also be read. - Page 25 RC-02A 5.2 Ripple/Noise measurement command Function command Description Remarks MD{NR1} setting range : 0-3 (*1) DC Volt 0: Auto range a command can be added measurement 1: 6V range by using "@" with this command 2: 60V range 3: 500V range...
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Page 26: System Command
RC-02A 5.3 System command Function Code Description Memo readback the ROM's version readback the version Release Alarm release alarm Inrialization Initialize Remo condition remains Clear Clear becomes the same as power ON Response Data Comma, Space Bound symbol of response data... -
Page 27: Usb Interface
RC-02A 5.6 USB interface This unit can be controlled from VBA such as Visual Basic or Excel by connecting to a personal computer (OS should be Microsoft’s Windos2000/Xp) having a USB interface with a USB cable alone. The command system for USB is designed like that for GPIB interface. So the controlling by USB should be equivalent to that of GPIB. -
Page 28: Specifications
RC-02A 6. Specifications These specifications are based on the following conditions unless otherwise described. ･Warm up time : 30 min. or more ･Temperature: 23℃±5℃, Humidity 70% or less 6.1 Specifications of Ripple/Noise measurement DC voltage measurement (INPUT） range ±60.000V ±6.0000V ±500.00V... -
Page 29: Maintenance/Calibration
RC-02A 7. Maintenance/Calibration Executing the pre-scheduled Maintenance and Calibration would be highly suggested for long use. 7.1 Cleaning To clean this product, use a soft or wet cloth. CAUTION ・ Before you clean this product, power this product off and disconnect the power plug. - Page 30 RC-02A LOAD EDGE/STATION Series Option Ripple Converter RC-02A OPERATION MANUAL M-2100-02 Rev1.1 Issue Date February 22 2009 KEISOKU GIKENCO.,LTD. 2-12-2, Chigasaki-minami, Tsuzuki-ku, Yokohama 224-0037 JAPAN http://www.keisoku.co.jp/ Contact Us For sales TEL: 045-948-0211 FAX: 045-948-0221 E-mail: PWsales@hq.keisoku.co.jp For Engineering TEL: 045-948-0214...