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CPS SCA Series - User Manual

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CPS SCA Series Grid-tied PV Inverter
CPS SCA25KTL-DO/US-208
CPS SCA50KTL-DO/US-480
And SCA60KTL-DO/US-480
Installation and Operation Manual - Rev3.4
CHINT POWER SYSTEMS AMERICA CO.
Revision 3.4 - May 2020

Table of Contents

Questions and Answers

  • T
    Terry FarmerSep 5, 2025
    Why is the GRID LED blinking on my CPS Inverter?
    • D
      David SchmidtSep 5, 2025
      If the GRID LED is blinking on your CPS Inverter, try the following: - Turn off the external AC breaker. - Switch the DC switch to the “OFF” position. - Check that the grid voltage is normal and the AC side cable connection is correct and secure.
  • J
    John PattersonSep 6, 2025
    How to fix CommErr on my CPS SCA Inverter?
    • L
      Larry HughesSep 6, 2025
      To address a CommErr on your CPS Inverter: - Observe for 5 minutes to see if the alarm clears automatically, as the terminal block connectors of internal communication wires might have poor contact. - If the problem persists, switch off the 3-phase working power supply and then reboot the system.
  • J
    Jason WillisSep 6, 2025
    How to fix ExtFanErr on my CPS SCA?
    • C
      Christine DavenportSep 6, 2025
      To fix an ExtFanErr on your CPS Inverter: - Observe for 5 minutes to see if the alarm clears automatically, as the fan might be blocked. - Check the fan blades for any foreign objects. - If the issue continues, switch off the 3-phase power supply and then reboot the system.

Summary

Important Safety Instructions

Warnings and Symbols in this Document

Explains safety icons like DANGER, WARNING, CAUTION, NOTICE, and INSTRUCTION.

Warnings and Markings on the Product

Details caution and warning labels and their meanings for product safety.

Overview of CPS Inverters

Protection and Functions

Details the inverter's protection mechanisms and operational functions.

Module-Level Rapid Shutdown

Explains the RSD wirebox functionality for module-level rapid shutdown.

Installation Procedures

Recommendations Before Installation

Offers crucial advice on design, NEMA4X rating, conduit entries, and temperature ranges.

Mechanical Installation Procedures

Covers the physical aspects of mounting the inverter, including dimensions and methods.

Electrical Installation Procedures

Guides on connecting AC and DC power, grounding, and wiring.

Commissioning Process

Conductor Connections Check

Ensures correct connection and labeling of conductors, and proper polarity.

Commissioning Steps

Outlines the sequence for powering up the inverter, setting language, and grid standards.

Fault Shutdown and Troubleshooting

LED Fault Troubleshooting

Provides solutions for troubleshooting issues indicated by LED status lights.

LCD Fault Troubleshooting

Explains how to identify and resolve faults displayed on the inverter's LCD screen.

Maintenance and De-installation

Technical Data

Datasheet

Provides specifications for DC input, AC output, system, environment, and display.

Limited Warranty

CPS SCA Series Specifications

General IconGeneral
Nominal AC Output Voltage208 V / 240 V
Operating Temperature Range-25°C to 60°C
CommunicationRS485, Wi-Fi
Output Voltage208 V / 240 V
Frequency60 Hz
Protection FeaturesOvervoltage, Undervoltage, Overcurrent, Short Circuit, Over Temperature
Storage Temperature-40°C to 70°C

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