Chapter 1 System Description | 9 |
Password protection for important operations
The users must input the correct password before they conduct “Maintenance” and “Settings” operations. The password has 3 levels: user, operator or administrator. The authorities of the 3 levels are the same while conducting “Maintenance”, but different in conducting “Settings”. The operator can see 3 more pages than the user, which are “resetting system”, “resetting password” and “modifying system type”. The administrator can see 2 more pages than the operator, which are “modifying password of all levels” and “controlling alarm sound volume”. In addition, the administrator can browse the rectifier parameter serial No., software version and the setting of internal switches. See the following table:
Table 1-4 Authority and default password
| Level |
| Authority | Default password |
| User |
| Configuration of general parameters | 123456 |
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| Operator |
| User’s authority, plus resetting system, resetting | 654321 |
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| password and modifying system type. | ||
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| Operator’s authority, plus modifying password of all |
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| Administrator |
| levels, controling alarm sound volume, browsing system | 640275 |
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| parameters that can be set only through the host |
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1.5.4Multi-Function Unit (MFU)
Outline and components
The outline and the components of the MFU are illustrated in the following figure.
PE bus |
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OV DC bus | SPD |
Bypass bar LLVD contactor | |
Shunt |
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| AC input terminals |
BLVD contactor | Rectifier AC input MCB |
Battery MCB |
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Battery |
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Load MCB | Low prior load bus | |
Prior load bus | ||
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Figure 1-6 Outline and components of MFU
ACTURA Flex 48330 Power System User Manual