Chapter 1 System Description 9
ACTURA Flex 48330 Power System User Manu al
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
Operator User’s authority, plus resetting system, resetting
password and modifying system type. 654321
Administrator
Operator’s authority, plus modifying password of all
levels, controling alarm sound volume, browsing system
parameters that can be set only through the host
640275
Outline and components
The outline and the components of the MFU are illustrated in the following figure.
LLVD contactor
Bypass bar
Shunt
BLVD contactor
Battery -48V bus
Load MCB
Battery MCB
Rectifier AC input MCB
PE bus
OV DC bus SPD
AC input terminals
Prior load bus
Low prior load bus
Figure 1-6 Outline and components of MFU