Operation

6.3Security Access

6.3.1Security Levels

The Liebert FS software has two security levels: READ-ONLY and USER. Security levels restrict access to system resources, such as EEPROM parameters, terminal commands and display panel functions. From the Main Screen, Figure 55, the display can be locked at any time to prevent use of Control Panel. Pressing F4 button under “LOCK” will prompt the user to enter a password to “LOCK” the system. Once locked F4 will now read “UNLOCK” and pressing this will prompt you to enter the Password to the system so that the user will be able to operate the Control Panel and adjust system parameters and settings.

6.3.2Password

READ-ONLY level has no password and it is default level at reset.

The USER level password is user-configurable and saved in EEPROM. The default USER level pass- word is “1234”, and the password should be between 3 - 12 digits.

6.3.3EPROM (System) Parameters

EEPROM (system) parameters can be accessed through display panel or terminal commands. They can be read and written through terminal or display panel, but accessible parameters are limited by security levels. The parameters for each level have different number range. Unused numbers are reserved for future usage.

Table 7 EEPROM parameter number ranges

Security Level

Parameter Number Range

 

 

Read-Only

0 ~ 99

 

 

User (Editable)

0 ~ 99

 

 

6.4Menu Tree and Navigation

6.4.1Screen Tree Menu Functions

The following diagram shows all of the screens accessible from the control panel and the path to bring up these screens. The screens are used for configuring the Liebert FS for operation and accessing data current and historical data on its performance. The screens are organized by five primary function areas; Parameters, View, Security, About, and Tools. These are displayed on the Main Menu screen. Some of the screens require User level or Service level passwords to access as shown in the legend below. Refer to 6.3 - Security Access for more information on this subject.

Table 8 PCMC parameters, read-only and user (Liebert FS software)

No

Parameter Name

Unit

Default

Minimum

Maximum

 

 

 

 

 

 

1

Vcharge Setpoint

V

530

360

800

 

 

 

 

 

 

2

Vreg Setpoint

V

520

350

790

 

 

 

 

 

 

3

Icharge Max Setpoint

A

30

1

50

 

 

 

 

 

 

4

Amps per Volt Setpoint

A/V

20

1

50

 

 

 

 

 

 

5

Vreg Delta Setpoint 1

V

0

0

150

 

 

 

 

 

 

6

Vreg Delta Transition (SOC)

%

0

0

100

 

 

 

 

 

 

7

Vreg Delta Setpoint 2

V

0

0

150

 

 

 

 

 

 

57

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Emerson 540VDC manual Security Access, Menu Tree and Navigation