EM3555 | |
11/2011 | Troubleshooting |
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TROUBLESHOOTING
Table 10 Troubleshooting
Problem | Cause | Solution | |
The maintenance wrench | There is a problem with the | See the Alert | |
icon appears in the power | inputs to the power meter. |
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meter display. |
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The display is blank after | The meter is not receiving | Verify that the meter control power is receiving the required voltage. | |
applying control power to | adequate power. | Verify that the heart icon is blinking. | |
the meter. |
| Check the fuse. | |
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| Incorrect setup values | Verify the values entered for power meter setup parameters (CT and PT | |
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| ratings, system type, etc., see Setup section). | |
The data displayed is | Incorrect voltage inputs | Check power meter voltage input terminals to verify adequate voltage. | |
inaccurate. |
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Power meter is wired | Check all CTs and PTs to verify correct connection to the same service, | ||
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| improperly. | CT and PT polarity, and adequate powering (see Wiring Diagrams | |
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| section). | |
| Power meter address is | Verify that the meter is correctly addressed (see Setup section). | |
| incorrect. |
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| Power meter baud rate is | Verify that the baud rate of the meter matches that of all other devices | |
Cannot communicate with | incorrect. | on its communications link (see Setup section). | |
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power meter from a remote | Communications lines are | Verify the power meter communications connections (see | |
personal computer. | improperly connected. | Communications section). | |
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| Verify the terminating resistors are properly installed on both ends | |
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| of a chain of units. Units in the middle of a chain should not have a | |
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| terminator. | |
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| Verify the shield ground is connected between all units. | |
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Sign of one phase (real | CT orientation reversed | Remove CT, reverse orientation, reconnect (qualified personnel only) | |
power) is incorrect |
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CHINA ROHS COMPLIANCE INFORMATION (EFUP TABLE)
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| 产品中有毒有害物质或元素的名称及含量Substances |
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部件名称 |
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| 铅 (Pb) | 汞 (Hg) | 镉 (Cd) | 六价铬 (Cr(VI)) | 多溴联苯(PBB) |
| 多溴二苯醚(PBDE) |
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电子线路板 | X | O | O | O | O |
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O = 表示该有毒有害物质在该部件所有均质材料中的含量均在
Z000057-0A
© 2011 Schneider Electric All Rights Reserved. | 41 |