CPS ES Series - Inspections before Startup

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5.6 Inspections Before Startup
Before startup and operation, the installation of the ESS must be thoroughly checked for the following:
 All cables are properly crimped, no strands are exposed, cable insulation is not damaged, all cables are properly bent
without damage, and all screws are properly torqued.
 The system and internal components are properly grounded and the resistance measurement are below the specified
threshold.
 The battery modules' polarity is correct and the battery cabinet is properly grounded.
 All AC and DC switches are turned OFF.
 All circuit breakers connected to the energy storage system and/or inside the energy storage system cabinets (both PCS
and battery) are turned OFF.
 The UPS is OFF.
 The AC voltage is within the normal operating range on the incoming grid side.
 Ensure the emergency stop button is in the "released" state.
 The DC isolation switch on the battery cabinet HV control box is in the OFF position and the HV control box is powered
off.
 The multi-meter reading is 0 Vdc between HV+/HV- on the HV control box side and 0 VDC between the DC+/DC- across
the PCS cabinet DC busbar.
NOTE: Do NOT measure anything before ensuring all switches and breakers are in the OFF position.
 The resistance between the HV+/HV- on the HV control box side and DC+/DC- across the PCS cabinet DC busbar is
infinite.
 Insert one MSD per pack and do not bend the thin pins inside.