SYSTEM START-UP AND COMMISSIONING

Follow these steps as a general guideline for system startup and commissioning. For detailed, model-specific procedures, including configuration, safety checks, and integration requirements, refer to the inverter or Power Conversion System (PCS) integration guide.

PROCEDURE

CHECK

• Inspect for Condensation: If moisture is present in the cabinet, ventilate it and dry it with a cloth.

• Grounding System Check: Verify grounding connections.

• Verify Protection Devices: Check that all fuses, breakers, and safety devices are installed.

• Inspection of Physical Connections: Confirm the wiring, terminations, and fuses are securely fastened and torqued to specifications.

• Confirm Power Wiring: Verify that the battery power cables are correctly connected and secured at both the DC Distribution Box and the inverter, and torqued to specifications.

• Verify DC Polarity: Confirm DC connections are set to the correct polarity.

• Verify AC Wiring: Check that incoming AC wiring is terminated correctly.

• Verify Communication Wiring: Check that all communication cables are properly terminated in the correct ports.

• Check for Liquid Leaks: Inspect piping and seals for leaks.

• Inspect Terminals: Verify all wiring terminals are intact and undamaged.

• Wire Shield Installation: Verify the wire shields are properly installed on the HVB.

• Ensure MSDs are Correctly Installed: Confirm that all Manual Service Disconnects (MSDs) are properly engaged and locked in place.

• Foreign Object Removal: Remove any foreign objects from the cabinet.

• Lock and Secure Battery Pack Section: Ensure the door on the right-hand side of the battery cabinet is closed and locked. This door must remain closed during system operation; it cannot be opened while the system is active.

PROCEDURE

CHECK

• Confirm the Emergency Stop: Verify the Emergency Stop is not activated.

• Activate the DC Disconnect: Rotate the DC Disconnect handle clockwise to the ON position until it clicks and locks into place.

• Turn ON the AC Auxiliary Breaker: Switch on the AC auxiliary breaker to activate external AC power into the HVB. Make sure power is turned on at the source and at the breaker on the HVB. Verify the AC voltage is with in the specified range.

• Turn on UPS: Switch the Uninterruptible Power Supply (UPS) to the ON position for system operation.

• Verify System Status: Check for any active alarms and ensure the system is active with a solid green indicator light. As the system goes through system checks and precharge initiation, it may take a few seconds for the system to fully activate.

PROCEDURE

CHECK

• Confirm Closed-Loop Communications: Use LYNK ACCESS software and the LYNK II Communication Gateway to confirm battery data (SOC, voltage, current) is shared with the inverter and its components.

• DC Battery Power Input: Verify the inverter is receiving DC battery power.

• Verify AC Voltage: Confirm incoming AC voltage is within the specified range.

• Verify Thermal Management System (TMS): Confirm the TMS is active and functioning properly.

• Inverter Battery Parameters: Confirm the inverter settings align with the required parameters, including low SOC shutdown and recharge values.

• Operational Stability: Run the system at the rated power and monitor for over-temperature, over-current, and under-voltage.

• Full Charge and Discharge Cycle: Perform a complete charge and discharge cycle of the battery under monitored conditions.

• Documentation: Document the commissioning process, including test results, performance, faults, system configurations, and any system behavior anomalies for future reference.

• Product Registration: Register the product after installation to activate the warranty and for ongoing support.

PROCEDURE

CHECK

• Set the System to Standby Mode: Verify the system is not actively charging or discharging before proceeding with shutdown.

• Press the Emergency Stop Button: Engage the Emergency Stop to disengage the integrated contacts in the HVB. This cuts power to DC Power circuits.

• Turn OFF the AC Auxiliary Breaker: Flip the AC Auxiliary Breaker on the HVB to the OFF position to disconnect external AC power from the system. Additionally, turn off AC power at the source for complete isolation from external power inputs.

• Turn off UPS: Power down the Uninterruptible Power Supply (UPS) using the UPS Switch on the HVB.

• Rotate the DC Disconnect to OFF: Rotate the DC Disconnect handle to the OFF position to manually disconnect the DC circuits.

Note:

• The DC Disconnect has a built-in locking tab. Secure it in the OFF position with the locking mechanism so the system remains de-energized during maintenance.

• Verify with a voltmeter or other voltage sensing device that the AC and DC lines are no longer electrically live.

• For DC isolation, remove MSDs: Remove the Manual Service Disconnect (MSD) to isolate the high-voltage battery packs from the system during maintenance.

• Place Warning Sign: Post a clearly visible warning sign at the disconnect switch to prevent accidental re-energization. This sign must indicate that the system is under maintenance or shutdown and should not be operated.

• Engage Lockout/Tagout (LOTO): Follow proper Lockout/Tagout (LOTO) procedures, place signs at the battery cabinet, disconnect, AC supply disconnect, etc ensuring the signs remain in place until all work is complete and the system is verified safe for re-energization.