Alarms and Events
34. | Output outside tolerance | Output voltage outside tolerance | Call for assistance |
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35. | Output frequency outside | Output frequency outside | Call for assistance |
| tolerance | tolerance |
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36. | High battery temperature | Battery ambient temperature too | Check system ambient |
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| high | temperature, check fan, check for |
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| airflow obstructions |
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37. | Battery weak | Battery capacity below 75% or | Test battery capacity |
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| battery MCCB/fuse switched off |
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38. | Battery defective | Insufficient battery capacity or | Call for assistance |
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| battery MCCB/fuse switched off |
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39. | System locked in operation | UPS has made 10 attempts within | Unlock. |
| mode | 1 minute to switch from bypass to | If message reappears - |
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| battery operation, or “High DC | call for assistance |
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| warning” has appeared |
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| times within 1 minute |
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40. | RAM1 memory write error | UPS fault | Call for assistance |
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41. | Memory write error | UPS fault | Call for assistance |
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42. Communication to VQ bypass | UPS fault | Call for assistance | |
| lost |
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43. Communication to VQ output | UPS fault | Call for assistance | |
| lost |
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44. | Communication to DMU lost | UPS fault | Call for assistance |
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45. | Communication to controller | UPS fault. | Call for assistance |
| lost | Display will show invalid UPS |
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| data |
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46. | Communication to parallel IF | UPS fault | Call for assistance |
| lost |
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47. | External shutdown accepted | Remote signal for switching off | – |
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| UPS accepted. |
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| UPS switches off automatically |
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48. | Communication to VQ mains | UPS fault | Call for assistance |
| lost |
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49. | Bypass syncronization error | The UPS cannot synchronize with | Check if phase rotation of bypass |
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| bypass mains | voltage is correct – if OK, call for |
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| assistance |
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50. | Battery charge error | Transferred to battery operation | Check RFI input fuse and |
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| because of battery charge error | feedback relay |
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26 | User Guide APC Silcon |
