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Troubleshooting
Error Messages
An Error is caused by a critical fault. In most cases when this occurs, the unit will shut down. The MATE3 system display will show an Event and a specific Error message. This screen is viewed using the MATE3 Home screen’s soft keys. (See the MATE3 manual for more instructions.) One or more messages will display Y (yes). If a message says N (no), it is not the cause of the error.
NOTE: The Radian series has no external indicators and requires a system display to identify an Error.
It is possible to clear an error by resetting the inverter. The inverter must be turned off, and then on, to reset it. Other possible steps are shown below (although it is still necessary to reset the inverter).
Table 3 Error Troubleshooting
Message | Causes | Possible Remedy |
|
|
|
Low Output Voltage | Inverter’s AC regulation cannot be maintained | Check loads and measure current draw. |
| under high load conditions. | Remove loads as necessary. |
|
|
|
AC Output Shorted | Inverter exceeded its maximum surge current | Check the loads and wiring. This issue is usually |
| due to severe overload. | the result of a wiring problem (a short), as |
|
| opposed to a |
|
|
|
AC Output Backfeed | Usually indicates another AC power source (out | Disconnect the AC OUT wires from the inverter. |
| of phase with the inverter) was connected to | Check the wires (not the inverter) with an AC |
| the unit’s AC output. | voltmeter. If an AC source is present, shut it off. |
|
|
|
Stacking Error | Programming problem among stacked units. | Check stacking programming and designation |
| (Often occurs if there is no master.) | of master. (See page 25.) |
| Can also occur when AC Output Backfeed | Check for output backfeed from an external |
| occurs. | source. Donnect output if necessary. |
|
|
|
Low Battery V | DC voltage is below low battery | If this error accompanies other errors, treat |
| point, usually due to battery discharge. | those conditions as appropriate. |
| This error can be triggered by other causes. It | If it occurs by itself: Recharge the batteries. The |
| can appear along with Low Output Voltage, AC | error will clear automatically if an external AC |
| Output Shorted, or AC Output Backfeed errors. | source is connected and the inverter’s charger |
|
| comes on. |
|
|
|
High Battery V | DC voltage exceeded acceptable level (specified | Check the charging source. This problem is |
| on page 15). | usually the result of external charging. This |
|
| error will clear automatically if conditions are |
|
| removed. |
|
|
|
Over Temperature | Inverter has exceeded its maximum allowed | Allow the inverter to remain off for a short time |
| operating temperature. | to reduce the temperature, or add external |
|
| cooling. |
|
|
|
Phase Loss | A slave was ordered to transfer to AC by the | Check the AC voltage on the inverter input |
| master, but no AC is present. The unit continues | terminals. If AC voltage is not present, problem |
| inverting. This is the only “Error” that is not | is external. If AC voltage is present, the unit may |
| accompanied by a shutdown. | be damaged. Contact OutBack Technical |
|
| Support (see inside front cover of this manual). |
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