BASLER ELECTRIC BE1-951 OverCurrent Protecton System

BASLER ELECTRIC BE1-951 OverCurrent Protecton System

setting or the Down pushbutton to decrease the setting. To edit another setting on the current screen, use

the Left pushbutton to advance the underline upward or the Right pushbutton to advance the underline

downward to the other editable fields.

NOTE

On most screen, setting changes are used immediately by the DECS-200.

However, these changes are not saved in nonvolatile memory until the Edit

pushbutton is pressed to terminate the edit session.

After all desired editing on the current screen is complete, the changes can be saved or the values that

were in use prior to the edit session can be restored. Changes are saved by pressing the Edit pushbutton

which terminates the edit session and saves the changes in nonvolatile memory. Changes are aborted by

pressing the Reset pushbutton which terminates the edit session without saving the changes. The

previous values are then restored by reading them from nonvolatile memory. In both cases, the Edit

pushbutton LED turns off to indicate that the edit session is terminated.

Security (password) access is not immediately lost when an edit session is terminated. Security access

terminates after 10 minutes of pushbutton inactivity at the front panel. (Security access timeout is different

from edit session timeout;. see Edit Session Timeout.) If this period of inactivity occurs during an edit

session, any changes made are saved in nonvolatile memory and will be used or continue to be used by

the DECS-200. At this time, both edit access and security access are terminated.

CAUTION

Pressing the Reset pushbutton after changing the active mode setpoint will

cause a step change in the operating setpoint that may have the potential to

adversely affect the system.

In order to modify settings on another screen with the same access level, the user merely navigates to

that screen and presses the Edit pushbutton to start a new edit session on the new screen.

Edit Session Timeout

If the front panel is left in the Edit mode after any setting changes are made, the changes will be saved

and the edit session terminated after 10 minutes of pushbutton inactivity.

Changing Settings

All settings that are viewable at the front panel are password protected and require security access to

change.

Global access grants the right to change any viewable setting at the front panel.

Setpoint access grants the right to change only a few settings. These include basic operating settings like

Start/Stop, AVR/FCR, PF/var, control setpoints and pre-positions.

See Table 2-2 for a complete setting list that shows the range, increments and default values. In Table

2-2. note that the Ref. column refers to numbers associated with the menu screens shown later in this

section. These numbers should help you find the specific screen that contains the setpoint or parameter

that you want to change. For a list of settings that are accessible with the Setpoint access level, see Table

2-3. All editable settings on a single menu screen are at the same access level

BASLER ELECTRIC BE1-951 OverCurrent Protecton System

setting or the Down pushbutton to decrease the setting. To edit another setting on the current screen, use

the Left pushbutton to advance the underline upward or the Right pushbutton to advance the underline

downward to the other editable fields.

NOTE

On most screen, setting changes are used immediately by the DECS-200.

However, these changes are not saved in nonvolatile memory until the Edit

pushbutton is pressed to terminate the edit session.

After all desired editing on the current screen is complete, the changes can be saved or the values that

were in use prior to the edit session can be restored. Changes are saved by pressing the Edit pushbutton

which terminates the edit session and saves the changes in nonvolatile memory. Changes are aborted by

pressing the Reset pushbutton which terminates the edit session without saving the changes. The

previous values are then restored by reading them from nonvolatile memory. In both cases, the Edit

pushbutton LED turns off to indicate that the edit session is terminated.

Security (password) access is not immediately lost when an edit session is terminated. Security access

terminates after 10 minutes of pushbutton inactivity at the front panel. (Security access timeout is different

from edit session timeout;. see Edit Session Timeout.) If this period of inactivity occurs during an edit

session, any changes made are saved in nonvolatile memory and will be used or continue to be used by

the DECS-200. At this time, both edit access and security access are terminated.

CAUTION

Pressing the Reset pushbutton after changing the active mode setpoint will

cause a step change in the operating setpoint that may have the potential to

adversely affect the system.

In order to modify settings on another screen with the same access level, the user merely navigates to

that screen and presses the Edit pushbutton to start a new edit session on the new screen.

Edit Session Timeout

If the front panel is left in the Edit mode after any setting changes are made, the changes will be saved

and the edit session terminated after 10 minutes of pushbutton inactivity.

Changing Settings

All settings that are viewable at the front panel are password protected and require security access to

change.

Global access grants the right to change any viewable setting at the front panel.

Setpoint access grants the right to change only a few settings. These include basic operating settings like

Start/Stop, AVR/FCR, PF/var, control setpoints and pre-positions.

See Table 2-2 for a complete setting list that shows the range, increments and default values. In Table

2-2. note that the Ref. column refers to numbers associated with the menu screens shown later in this

section. These numbers should help you find the specific screen that contains the setpoint or parameter

that you want to change. For a list of settings that are accessible with the Setpoint access level, see Table

2-3. All editable settings on a single menu screen are at the same access level

Each of the protection and control functions in the BE1-GPS100 is implemented as an independent

function block that is equivalent to a single function, discrete device counterpart. Each independent

function block has all of the inputs and outputs that the discrete component counterpart might have.

Programming BESTlogic is equivalent to choosing the devices required by your protection and control

scheme and drawing schematic diagrams to connect the inputs and outputs to obtain the desired

operational logic. The concept is the same but the method is different in that you choose each function

block by enabling it and use Boolean logic expressions to connect the inputs and outputs. The result is

that in designing your system, you have even greater flexibility than you had using discrete devices. An

added benefit is that you are not constrained by the flexibility limitations inherent in many multifunction

relays.

One user programmable, custom logic scheme created by the user may be programmed and saved in

memory. To save you time, several preprogrammed logic schemes have also been provided. Any of the

preprogrammed schemes can be copied into the programmable logic settings without the user having to

make any BESTlogic programming.

There are two types of BESTlogic settings: function block logic settings and output logic settings. These

are described briefly in the following paragraphs. Detailed information on using BESTlogic to design

complete protection and control schemes for the protected circuit can be found in Section 7. BESTlogic

Programmable Logic, and Section 8. Application.

Characteristics of Protection and Control Function Blocks

As stated before, each function block is equivalent to a discrete device counterpart. For example, the

phase time-overcurrent function block in the BE1-GPS100 relay has all of the characteristics of Basler

BE1 relays wit