Circutor CDP series Application Notes
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Circutor CDP series Application Notes

Circutor CDP series Application Notes

Connection and configuration with delta rpi inverters
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Connection and configuration of a
CDP with DELTA RPI inverters
APPLICATION NOTES
(M028E0901-03-15A)

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Summary of Contents for Circutor CDP series

  • Page 1 Connection and configuration of a CDP with DELTA RPI inverters APPLICATION NOTES (M028E0901-03-15A)
  • Page 2 Application notes...

  • Page 3: Safety Precautions

    In this manual, if the instructions marked with this symbol are not respected or fol- lowed correctly, it can result in injury or damage to the unit and /or installations CIRCUTOR, SA reserves the right to modify features or the product manual without prior notification. DISCLAIMER CIRCUTOR, SA reserves the right to make modifications to the device or the unit specifications set out in this instruction manual without prior notice.

  • Page 4: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ........................3 DISCLAIMER ............................3 CONTENTS ............................4 LOG OF REVISIONS ........................... 5 1.- INTRODUCTION ..........................6 2.- DELTA PRI M8A 8KW INVERTER ....................6 2.1.- COMMUNICATION CABLE ......................6 2.1.1. CONNECTION OF ONE INVERTER ...................7 2.1.2. CONNECTION OF SEVERAL INVERTERS ...............7 2.2.- INVERTER COMMUNICATION CONFIGURATION ..............8 3.- CDP CONFIGURATION .........................

  • Page 5: Log Of Revisions

    LOG OF REVISIONS Table 1: Log of revisions. Date Revision Description Original version 08/15 M028E0901-03-15A Note: The images of the units are solely for the purpose of illustration and may differ from the original unit. Application notes...

  • Page 6: Introduction

    1.- INTRODUCTION DELTA offers several inverter models that can be managed via the CDP Dynamic power controller. For the CDP controller to be able to correctly manage the inverter, communication between the two devices must be correct and both products must be correctly programmed.

  • Page 7: Connection Of One Inverter

    The cable must be connected to the RS-485 port of the inverter, Figure 1 Figure 1: Description of the inverter terminals. 2.1.1. CONNECTION OF ONE INVERTER shows the connection between the CDP and a single inverter. Figure 2 Figure 2: Connection between a CDP and one inverter. 2.1.2.

  • Page 8: Inverter Communication Configuration

    The bus end terminal must always be connected to the last inverter of the RS- 485 communication bus. The bus end terminal is a resistor that is built in the communications card of the inverter. To activate it, the switch must be configured in the ON position. Figure 4: Bus end terminal.

  • Page 9: Cdp Configuration

    Table 3: Peripheral number in three-phase installations with single-phase inverters. Peripheral number Inverter L1 Inverter L2 Inverter L3 1 to 84 85 to 168 169 to 254  Insulation  Country and regulation comply  AC Connection All parameters are in the same setup menu Inverter: Install settings. To enter the Install settings menu must enter a password: 5555 Consult the manual for more information on how to configure the parameters.
  • Page 10 The most important inverter parameters that have to be configured in the CDP are (Table 4): Table 4: Parameters to be configured in the CDP. Parameter Description Inverter type Inverter model. In this case select: DELTA Total power to be controlled by the CDP. Inverter power Number of inverters to control.

  • Page 11: Communications Test And Regulation

    4.- COMMUNICATIONS TEST AND REGULATION 4.1.- COMMUNICATIONS TEST Check the communication between the inverter and the CDP, through the COM1 LED of the CDP:  A flashing (or steady) LED means communication has been correctly established. The flashing rate is one flash per second (if there is one inverter) and 1/n if there are several inverters (where "n"...

  • Page 12: Regulation Test

    4.2.- REGULATION TEST The following test can be performed to ensure the CDP is correctly performing the regulation: We assume a 3000W inverter generating 1400W. Now we program the CDP indicating that the inverter power is 6000W. The CDP will send the inverter a new setpoint so it can change its MPPT and the inverter will reduce photovoltaic generation by 50%, generating 700W.

  • Page 13: Maintenance And Technical Service

    • CIRCUTOR accepts no liability due to the possible damage to the unit or other parts of the installation, nor will it cover any possible sanctions de- rived from a possible failure, improper installation or "improper usage" of the unit.
  • Page 14 CIRCUTOR, SA Vial Sant Jordi, s/n 08232 -Viladecavalls (Barcelona) Tel.: (+34) 93 745 29 00 - Fax: (+34) 93 745 29 14 www.circutor.es central@circutor.es...

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