MicroLogic E Settings

Settings

The corresponding parameters (type of network, power sign, for example) have default values that can or must be changed according to the needs of the installation or users.

The following tables list these parameters and indicates their possible values. The parameters are displayed in the order indicated in the tables below.

Measurement Settings

Parameter	Definition	Format (X = digit)	Default value (units)	Default screen	Possible values
Interval (window) for demand power calculation	Period of time over which the demand power is calculated.	XX	15 (minutes)		5 to 60 (in 1 minute steps)
Interval (window) for demand current calculation	Period of time over which the demand current is calculated.	XX	15 (minutes)		5 to 60 (in 1 minute steps)
Type of network (3-wire or 4-wire) and number of circuit breaker poles (CTs).	Setting 43 = 4-wire (3ph+N) and 3-pole CB (3 CTs) Setting 44 = 4-wire (3ph+N) and 4-pole CB (4 CTs) or 3-pole CB (3 CTs) + external CT Setting 33 = 3-wire (3ph) and 3-pole CB (3 CTs) NOTE: For 3-pole circuit breakers used on 3-wire systems (neutral not distributed), always set this value to 33 to avoid indications of a meaningless phase-to-neutral voltage.	XX	43		43 44 33
Power sign	By default, the MicroLogic E trip unit considers power flowing into the circuit breaker via the top terminals to loads connected to the bottom terminals as positive (top fed).	+ or - -	+		+ - -
Quick View display duration	Duration of display of each screen in Quick View mode	X	2 (s)		1 to 9

Communication Settings

When the BCM ULP communication module is installed, the communication settings must be set.

The communication module should be set up only after installation. Modification of a setting on a system already in operation may lead to loss of communication.

Parameter	Definition	Format (X=digit)	Default value (units)	Default screen	Possible values
Modbus address	Modbus address of MicroLogic E on the Modbus network to which it is connected.	XX	47		1 to 47
Baud rate	Number of kbits/s (kbauds) exchanged on the Modbus network.	XX.X	19.2 (kb)		9.6/19.2
Parity	Used for error checking based on the number of bits in the transmitted data group.	E or n	E		E (Even) n (none)
Modbus connection	Type of Modbus connection: 4-wire (4) or 2-wire + ULP (ULP)	4 or ULP	4		4 ULP

For more information about installing and setting the BCM ULP communication module, consult the instruction sheet on the Schneider Electric website: 5100512864A

MicroLogic E Setting Procedure

The parameters are divided into two branches on the navigation tree:

• Measurement settings

• Communication settings

Follow this procedure to modify the settings. Examples for Modbus address and output settings are given after the procedure.

1. To access the first screen of the communication settings branch, simultaneously press and hold (four seconds) and to access the first communication settings screen. The present value is displayed. A closed padlock icon indicates that the setting is locked.

2. To unlock and access the setting to be changed, press to open the padlock. The setting to be changed (or the first digit) will flash, indicating that it is ready to be modified.

3. Press to select the new setting. The possible settings are scrolled in a loop. Each press increments to the next setting or choices in the loop.

4. Press to confirm the new setting. It stops flashing and a closed padlock is displayed.

   For a two-digit setting, this operation sets the first digit and the second digit flashes to indicate it is ready to be modified. Proceed as above to change it, that is, press to modify the second digit then to confirm it. The digit stops flashing, and a closed padlock is displayed. The new setting is locked.

5. Press to go to the screen for the next parameter in the communication settings branch.

   To go to the next branch (measurement settings), press .

NOTE: Within a given branch, the various parameters are organized in a loop. You must scroll through all the parameters of the branch using to return to the same parameter. To proceed to the next set-up branch (or exit the last branch), press .

Example: Setting the Modbus Address

The Modbus address is a two-digit number identifying the MicroLogic E trip unit in a Modbus network.

1. From the Metering menu, simultaneously press and for four seconds to access the Modbus address setting screen.

   The existing address is displayed (default address 47 or XX). A closed padlock icon indicates that the value is locked.

   

2. Unlock and access the first digit by pressing . It will flash, indicating it is ready to be modified.

   

3. Modify the first digit by pressing repeatedly until the new value for the first digit is displayed. You can scroll through all possible values in a loop.

   

4. Confirm the first digit and access the second digit by pressing to display the second digit. The first digit will stop flashing and the second digit will start flashing, indicating it is ready to be modified.

   

5. Modify the second digit by pressing repeatedly until the new value for the second digit is displayed. You can scroll through all possible values in a loop, as for the first digit.

   

6. Confirm and lock the new setting by pressing to confirm and lock the new setting. The second digit stops flashing and a closed padlock is displayed. The new setting is locked.

   
   NOTE: The maximum address is 47. If you try to set a higher address, the MicroLogic trip unit will set the address to 47.

7. Display the next setting screen by pressing again to go on to the next parameter.