CPS SCA50KTL-DO/US-480 - Inverter De-installation Guide

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Table 8-4 LCD Troubleshooting PROTECTION Cont’d
Protection
Protect0150
(Mini MCU Fault)
1. Restart inverter by turning both AC and DC
switches OFF. Wait for 1 minute for all energy to
discharge and turn both switches ON
2. If inverter cannot clear fault, replace inverter
Protect0110
(BUS over voltage
(firmware))
1. Restart inverter by turning both AC and DC
switches OFF. Wait for 1 minute for all energy to
discharge and turn both switches ON
2. If inverter cannot clear fault, replace inverter
Protect0100
(The sensor fault
of leakage current)
1. Restart inverter by turning both AC and DC
switches OFF. Wait for 1 minute for all energy to
discharge and turn both switches ON
2. If inverter cannot clear fault, contact CPS Service
to replace Filt board or inverter.
PVxReverse
(PVx input reverse
connection
x=1,2,3)
1. Turn DC Switch OFF
2. Open Fuse holders to isolate PV strings
3. Use meter to find out which PV string is
connected in reverse polarity
4. Correct PV string connection
PVx Over current
(PVx Over
current x=1,2,3)
1. Check PV input Current
2. Restart inverter by turning both AC and DC
switches OFF. Wait for 1 minute for all energy to
discharge and turn both switches ON
2. If inverter cannot clear fault, replace inverter
PV2VoltOver
(PVx Over Volt
x=1,2,3)
1. Measure voltage at DC terminals in wiring box
and compare with reading in “Measurement Data”
menu. PV voltage must be less than 1000V in open
circuit condition
2. If display reading is not within 2% of meter
reading, replace inverter
3. If display reading is within 2% of meter reading,
adjust number of panel in the string.
Protect0230
(Inverter
open-loop self-test
fault)
1. Restart inverter by turning both AC and DC
switches OFF. Wait for 1 minute for all energy to
discharge and turn both switches ON
2. If inverter cannot clear fault, replace inverter
ARC Protect
1. Check logic connector to Arc board is secure.
2. Run Arc Fault Test from “Settings” Menu
3. If Alarm re-occurs, contact CPS Service to
replace arc board or wiring box
Arcboard Err
1. Check logic connector to Arc board is secure
2. Run Arc Fault Test from “Settings” Menu
3. If Alarm re-occurs, contact CPS Service to
replace arc board or wiring box