Eaton Power Xpert Solar 1500 User Manua

TroubleshootingPower Xpert Solar 1500/1670 kW Inverter MN141001EN—October 2014 www.eaton.com 53THM15 Inlet Pressure Indicates that the stacks’ inlet pressure is lessthan the under-pressure threshold (20 PSI) orgreater than the over-pressure threshold(60 PSI) for 3 seconds while the pump isrunning.Pressure exiting the coolant pump: pump outlet1. Verify Inlet Pressure reading on HMI: Monitor-menu2. Check for coolant leaks3. Check coolant Pressure Sensor/Transducer PT1 in LC Cabinetsection: wiring■ TB11-4 | TB11-11 | CANUX2 J6-6/1/(2-shield drain-wire)THM16 Inlet Water Temp Stacks’ Inlet Water Temperature sensorexceeds over-temp threshold (70 °C) for10 seconds.Coolant is not sufficiently cooled exiting the radiator1. Verify Inlet Temp reading on HMI: Monitor menu2. Check for coolant leaks3. Check for: blower operation | air-filter blockage or reduction ofair-flow thru radiator4. Check coolant Temperature Sensor/Transducer TT1 in LCcabinet section: wiring■ TB11-6 | TB11-13 | CANUX2 J7-8/3/(7-shield drain-wire)THM17 Outlet Pressure Indicates that the stacks’ outlet pressure is lessthan or equal to the minimum outlet pressure(20 PSI) for 3 seconds while the pump isrunning.Pressure entering the coolant pump: pump inlet1. Verify Outlet Pressure reading on HMI: Monitor-menu2. Check for coolant leaks3. Check coolant Pressure Sensor/Transducer PT2 in LC Cabinetsection: wiring■ TB11-5 | TB11-12 | CANUX2 J6-8/3/(7-shield drain-wire)THM18 Outlet Water Temp Stacks’ Outlet Water Temperature sensorexceeds over-temperature threshold (72 °C)for 10 seconds.Coolant is exceeding allowed temperature-rise thru IBGT stacks, prior toradiator1. Verify Outlet Temp reading on HMI compared to IGBT temps:Monitor menu■ Temperature 2 menu: M1A/B/C | M2A/B/C | M3A/B/C■ Verify coolant Inlet Temp is within specification (sufficientlycooled)2. Check coolant Temperature Sensor/Transducer TT2 in LCcabinet section: wiring■ TB11-7 | TB11-14 | CANUX2 J7-10/5/(4-shield drain-wire)THM19 Choke Over Temp Indicates that one of the chokes has exceededsafe operating threshold1. Check choke temperature switch: TSW LO1 | LO2 | LO32. Check choke series-connected wiring3. Check choke temperature switches wiring at: TB11-6 andCANUX2-J64. Check for: blower operation | air-filter blockage or reduction ofair-flow thru radiatorAnd exiting into LC Cabinet section and then exiting rear ofinverter (air exit vents)UF Under-Frequency Grid under-frequency alarmFrequency <95% Rated Frequency [57 Hz] for1.2 secSEL set for UL1741 grid-tie parameters: incompatible withlow-frequency ride-thru■ Check for/if SCADA control seeking low-frequency ride-thruTable 13. Warnings That Become Faults: WARNING R FAULT, continuedWarning R F Display Text DescriptionResolutionFollowing these steps. if fault continues, contact Eaton service