Related Manuals for YOKOGAWA Power Series Plus IM 2493AAA-1
Summary of Contents for YOKOGAWA Power Series Plus IM 2493AAA-1
- Page 1 Plus Users Power Series Manual Plus Power Series 3 in 1 AC Current Digital Switchboard Meter IM 2493AAA-1 IM 2493AAA-1 Revision 1, October 1999...
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Page 2: Table Of Contents
Changing the rolling average setting ...............9 Changing the network address setting............10 Changing the baud rate setting..............10 Analog Output Scaling ...................11 Changing the Analog Output Settings............12 Connection Diagrams ....................14 Mounting and Outline..................15 IM 2493AAA-1 edition, October 1999 All Rights Reserved, Copyright 1999, Yokogawa Corporation of America... -
Page 3: General Description
The Yokogawa Corporation of America POWER SERIES digital switchboard meters incorporate the latest DSP ASIC technology. The ASIC circuitry, developed by Yokogawa, has created a family of user-friendly, field- adjustable meters. When ordering the 2493 meter, the following options are available: AC Measuring Function(s): Volts, Amps, Watts, VARs, Power Factor, and/or Frequency. - Page 4 1. GENERAL DESCRIPTION operation and maintenance of the Equipment, or normal wear and tear on disposable or consumable parts. This warranty shall be void in the event of unauthorized modification or servicing of the Equipment. The foregoing warranty is exclusive and in lieu of any other warranties of quality, whether expressed or implied (including any warranty of merchantability or fitness for a particular purpose).
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Page 5: Specifications
2. SPECIFICATIONS 2. SPECIFICATIONS 3 in 1 AC Current Specifications PRODUCT FUNCTION: AC Amps, 3 Phases ACCURACY: 0.2% of Reading 0.1% of Full Scale DISPLAY UPDATE RATE: Channel A: 80 milliseconds Channel B & C : 160 milliseconds OPERATING TEMPERATURE RANGE: -20 to +60 Celsius STORAGE TEMPERATURE RANGE: -40 to +85 Celsius INPUT RANGES:... -
Page 6: Configuration
3. CONFIGURATION 3. CONFIGURATION Plus CONFIGURING THE 2493 POWER SERIES METER Plus The new triple-display POWER SERIES can be configured for voltage and current inputs from instrument transformers, as well as analog outputs, RS-485 network address and a rolling average display. All set-up functions can be performed using the four push-buttons on the front panel see below) or via RS-485 communications. - Page 7 3. CONFIGURATION changed it will advance to the next setting. At any point while changing settings, pressing Mode will exit the mode without changing anything. IM 2493AAA-1...
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Page 8: Keymap
4. KEYMAP 4. KEYMAP Plus This flowchart illustrates the operation of the POWER SERIES meter using the push-keys on the front panel. This flowchart depicts the front panel key options when operating in normal reading mode. The options are: Mode-Mode – Invokes change setting menu (see flow chart page 7). Mode –... -
Page 9: Changing Settings
5. CHANGING SETTINGS 5. CHANGING SETTINGS Note: This flowchart gives information pertaining to units equipped with YCA communications option, or no communications option. The setup flow is slightly different for units with MODBUS communications option. See the Power Series communications manual (IM 249X-COMM) for details. -
Page 10: Changing The Current Transformer (Ct) Ratio Setting
5. CHANGING SETTINGS Changing the current Transformer (ct) ratio setting When you reach the CT setting, the primary value will be displayed it the middle row and the secondary value will be displayed in the bottom row. Press Set and the first digit of the primary value will begin blinking. -
Page 11: Changing The Rolling Average Setting
5. CHANGING SETTINGS “ErrL” (Too Low) when you try to advance to the secondary. The ratio of the Primary and Secondary must be between 1.000 and 5000. You will get “ErrH” or ErrL” if you try to advance to Confirm mode with an incorrect ratio. If you try to save a ratio value that exceeds the precision of the unit, that value will be automatically rounded off. -
Page 12: Changing The Network Address Setting
5. CHANGING SETTINGS Changing the network address setting The Address setting is changed in exactly the same way as the Average setting. The address can be set to any value from 01 to 32. Please make sure that no two units have the same address. If this occurs neither unit will be able to communicate. -
Page 13: Analog Output Scaling
5. CHANGING SETTINGS Analog Output Scaling Plus The POWER SERIES has the option of analog output, which can provide an analog signal relative to the input of the meter. The relationship between the input and the output can be scaled by the user using the front panel. Analog Output 1 is always proportional to the value shown on the first (top) display. -
Page 14: Changing The Analog Output Settings
5. CHANGING SETTINGS Changing the Analog Output Settings When you reach the ‘out1’ (or ‘out2’ or ‘out3’) display, press Set and the value of HI will be displayed. Pressing Set again will cause the first digit to begin blinking. To move to the next digit press Next. Next will move you through all four digits and back to the first one, if necessary. - Page 15 5. CHANGING SETTINGS Pressing Set will now move you to the HI Confirm mode. The whole value will blink. If the value is correct press Set one last time to move on to the LO setting. Pressing Mode at this time or at any other step in the process will restore the old HI setting.
- Page 16 5. CHANGING SETTINGS dropped below that, the lower end of the output is limited to 3.04mA for a 4- 20mA unit. A 0-1mA unit can never go below 0mA. IM 2493AAA-1...
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Page 17: Connection Diagrams
6. CONNECTION DIAGRAMS 6. CONNECTION DIAGRAMS All circuits should be de-energized when making connections to the rear terminal block. IM 2493AAA-1... -
Page 18: Mounting And Outline
6. CONNECTION DIAGRAMS Mounting and Outline IM 2493AAA-1...