Description of Commands with Session

Presentation

The procedure for setting a protection setting conforms to UL489SE standard. It is safeguarded by an exclusive editing session and by a two-step procedure for submitting and applying setting changes.

The exclusive editing session means that only one interface at a time can access and set protection settings. Access from other interfaces is blocked when an editing session is open.

During the editing session there is no impact on the active protection provided by the MicroLogic X control unit until the new settings are applied. If the new settings are canceled, or the editing session times out before the new settings are applied, the active settings are maintained.

Enabling and Disabling Access to Protection Settings

You can enable or disable access to the protection settings by using the MicroLogic X display screen at Home > Configuration > General > Lock protection .

From the Lock protection screen of the MicroLogic X control unit, you can allow changes to the protection settings from the following interfaces:

Keypad : MicroLogic X display screen keypad itself
External access : EcoStruxure Power Commission software, EcoStruxure Power Device app , and communication network

For each interface:

Set as Allowed (factory setting) to enable changes to be made.
Set as Not Allowed to disable changes.

Editing Session for Selecting and Changing Protection Settings

An editing session has the following characteristics:

Only one editing session at a time can be open. Access to protection settings from other interfaces is blocked when you open an editing session.
There is a five-minute timeout for submitting and for applying new settings. The session times out as follows:
- Five minutes after the session opens, if you do not submit the new settings
- Five minutes after submitting the new settings, if you do not apply the new settings
After applying new settings, get the apply setting status to check that the new protection settings are applied. Once apply is completed, close the session.
When setting protection using the communication network, several protection functions of the same setting group can be set in one editing session, with a submit step after changing each function and one apply step to apply all the new settings. Active settings are maintained until the apply step is executed.
The earth-leakage protection and the neutral protection can be set with the other protections of setting group A or setting group B.
The protection settings activated when the ERMS function is engaged cannot be set by using the communication network.

The ERMS settings can be set only as follows:
- with EcoStruxure Power Commission software through a USB connection (password-protected)
- with the EcoStruxure Power Device app (password-protected)

Two-Step Procedure for Submitting and Applying Protection Settings

The procedure for changing protection settings requires you to submit and apply the new settings in two consecutive steps:

Step	Action
1	Submit new settings	Select new settings required and submit. The new settings are displayed so that you can check that the settings are correct before they are applied. Read the new settings to confirm that they are correct.
2	Apply new settings	Apply the new settings. The existing active protection settings are replaced by the new settings.

Protection Setting Procedure with Session

To set protection settings by using the communication network, external access to protection settings must be allowed by using the MicroLogic X display screen Enabling and Disabling Access to Protection Settings.

The following example shows how to set the long-time overcurrent protection setting group A:

Step	Action
1	Open the editing session with the open setup session command Open Setup Session. Result: The session key for the editing session is returned to the command registers. The returned session key must be used in all commands during the session.
2	Submit the new protection settings with the submit long time over current protection settings command Submit Long Time Over Current Protection Settings. The requested session key for the command must be the session key returned by the open setup session command.
3	Use the Get long time over current protection settings command Get Long Time Over Current Protection Settings to read the submitted settings. The requested session key for the command must be the session key returned by the open setup session command.
4	Check that the protection settings submitted at step 2 and the protection settings got at step 3 are identical: If the settings are identical, go to step 5 If the settings are not identical, go to step 7 and start the setting procedure again
5	Apply submitted protection settings with the apply settings command Apply Settings. The requested session key for the command must be the session key returned by the open setup session command.
6	Use the Get apply setting status Get Apply Setting Status to check that the new protection settings are applied. The requested session key for the command must be the session key returned by the open setup session command. NOTE: If the settings of other protection functions must be changed or if the settings of protection functions of another setting group must be changed, restart the setting procedure at step 2 for each protection functions
7	Close the editing session with the close setup session command Close Setup Session. The requested session key for the command must be the session key returned by the open setup session command.