Troubleshooting
| Table 2 | Troubleshooting |
Symptom | Possible Cause | Possible Remedy |
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|
| Charge complete or nearly | Check the DC voltage and charging stage using the MATE3, if |
| complete. | present. Confirm with DC voltmeter. |
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|
| MATE3’s DC meter reads | Check the DC voltage on the inverter’s DC terminals. If different |
| significantly higher than actual | from the MATE3 reading, the inverter could be damaged. |
| battery voltage. | Otherwise, check the DC voltage on batteries with a voltmeter. If |
Low charge rate. |
| different from the reading on the inverter, this could be a DC |
| connection problem. | |
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| |
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|
|
| High output loads. If total loads | Turn off some of the output loads and test the charge rate again. |
| and charge exceed the AC input |
|
| setting, charge rate decreases |
|
| to give priority to the loads. |
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|
|
| Generator input mode in use. | Radian charge rate is limited in this mode (see page 9.) |
|
|
|
| No AC input. | See “Will not connect to AC” category. |
Will not charge. |
|
|
Charger set to Off. | MATE3 system display only: Check the Charger Mode screen with | |
|
| the CHARGER hot key and set to On or Auto. (If this setting was |
|
| intentional, then no action is required.) |
|
|
|
Unusual voltage on | System neutral and ground may | Test L1 OUT, L2 OUT, and NEU test points with AC voltmeter. (See |
hot or neutral | not be bonded. | page 33.) These measurements should give full voltage. Test NEU |
output line. |
| and ground connections. This measurement should read zero |
|
| volts. Any other result means neutral and ground are not bonded |
|
| correctly. If this is the case, usually the hot line reads |
|
| and the neutral reads |
|
|
|
Unusual and | Input neutral is not connected | Test L1 input and NEU connections with AC voltmeter. Test L2 |
different voltages | correctly. The inverter also may | input and NEU connections with AC voltmeter. (This can be on |
on AC hot input | not connect to the AC source. | Grid or Gen input, depending where the symptoms appear.) Test |
lines. |
| L1 to L2 input. From hot to neutral should be approximately |
|
| 120 Vac. L1 to L2 should be approximately 240 Vac. If the two |
|
| legs are different voltages but still add up to 240 Vac, the neutral |
|
| is not connected to the inverter. |
|
|
|
| MATE3 system display only: Check the | |
| manually disabled. | the |
|
|
|
| Grid Tied mode not in use on | MATE3 system display only: Check the Inverter part of the Settings |
| the appropriate input. | menu to see if Grid Tied mode is in use. Confirm that it has been |
|
| selected for the correct Radian input terminals. |
|
|
|
| AC source does not meet | Verify grid voltage and frequency. Determine if they are within |
Will not sell power | requirements. | the inverter’s approved limits. If not, the inverter is behaving |
| correctly. Contact the utility company if necessary. | |
to the utility grid. |
| |
| MATE3 system display only: The program selections for limits are | |
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| |
|
| IEEE or user. They are found in the inverter’s |
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|
| Inverter priority. | MATE3 system display only: Check Sell Status screen using the |
|
| Home screen’s soft keys. The inverter may be behaving correctly. |
|
|
|
| High output loads will consume | Turn off some output loads and observe the sell function. |
| power before it is returned to |
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| the utility grid. |
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35 |