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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

  • S
    Stephanie AndradeAug 31, 2025
    What to do if my CPS SCA displays Fault0130 (Bus over total voltage)?
    • J
      Jasmine CarpenterAug 31, 2025
      If your CPS Inverter shows a Fault0130 (Bus over total voltage) error, try restarting the inverter by turning both the AC and DC switches off, waiting one minute, and then turning them back on to allow all energy to discharge. If the fault continues, the inverter may need to be replaced.
  • S
    Sara AllenSep 10, 2025
    What does Warn0030 (EepromErr) mean on my CPS SCA Inverter and how to fix it?
    • J
      Jonathan AnthonySep 10, 2025
      If your CPS Inverter shows Warn0030 (EepromErr), observe for 5 minutes to see whether the alarm will be eliminated automatically.
  • G
    Gloria ReidAug 30, 2025
    What to do if my CPS SCA Inverter displays Protect0090 (Bus over voltage)?
    • D
      Derek DuarteAug 30, 2025
      If your CPS Inverter displays a Protect0090 (Bus over voltage) error, try restarting the inverter by turning both the AC and DC switches off, waiting one minute, and then turning them back on to allow all energy to discharge. If the fault continues, the inverter may need to be replaced.
  • E
    Emily ReidSep 12, 2025
    Why is the Power LED off on my CPS Inverter?
    • A
      Anthony CarterSep 12, 2025
      If the Power LED is not lit on your CPS Inverter: - Turn off the external AC breaker. - Switch the DC switch to the “OFF” position. - Check the PV input voltage and polarity.
  • R
    Robert LopezSep 12, 2025
    What does Warn0050 (TempSensorErr) mean on my CPS SCA Inverter and how to fix it?
    • R
      Ryan FitzgeraldSep 12, 2025
      If your CPS Inverter displays Warn0050 (TempSensorErr), observe the temperature display. If the issue persists, switch off the 3-phase working power supply and then reboot the system.
  • B
    Becky MendezSep 15, 2025
    What to do if my CPS Inverter displays Protect0110 (BUS over voltage (firmware))?
    • M
      Micheal ReyesSep 15, 2025
      To address a Protect0110 (BUS over voltage (firmware)) error on your CPS Inverter: 1. Restart the inverter by turning both the AC and DC switches OFF. Wait for 1 minute for all energy to discharge, then turn both switches ON. 2. If the inverter cannot clear the fault, it may require replacement.
  • P
    pattersonaustinSep 23, 2025
    What does IntFanErr mean on my CPS Inverter?
    • B
      Brandon ReynoldsSep 23, 2025
      If your CPS Inverter displays IntFanErr, it means the inverter needs to be replaced.
  • M
    Mr. Matthew HillAug 27, 2025
    What to do if my CPS SCA shows ExtFanErr?
    • A
      angelasnyderAug 27, 2025
      If your CPS Inverter is showing an ExtFanErr, observe it for 5 minutes to see if the alarm clears automatically. Check the fan blades for any obstructions. You can also try switching off the 3-phase work power supply and then rebooting the system. The error may be caused by the fan being blocked, the fan's service life expiring, or a poor connection at the fan socket.
  • J
    Joseph LyonsAug 26, 2025
    What to do if my CPS SCA Inverter displays Protect0070 (Bus imbalance) error?
    • A
      April KirbyAug 26, 2025
      If your CPS Inverter shows a Protect0070 (Bus imbalance) error, try increasing the limit of IDCmax (for example, to 400mA) to give the inverter more flexibility to adjust during transient conditions, which can help with impedance and voltage imbalances between Grid phases. If the alarm persists after this adjustment, the inverter may need to be replaced.
  • K
    kelly67Aug 25, 2025
    What to do if my CPS SCA displays Protect0030 (Inverter Over Current) error?
    • C
      Christopher WatersAug 26, 2025
      If your CPS Inverter displays a Protect0030 (Inverter Over Current) error, try restarting the inverter by turning off both AC and DC switches, waiting one minute to allow all energy to discharge, and then turning them back on. If the fault continues, the inverter may require replacement.

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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