Protection Menu - MTZ MicrologicX Ground Fault Digital Module

Description

The Protection menu contains the following submenus:

Level 1	Level 2	Level 3	Function description
Home	Protection	I long time	Long-time overcurrent protection, L or ANSI 49RMS/51
		I short time⁽¹⁾	Short-time overcurrent protection, S or ANSI 50TD/51
		I instantaneous	Instantaneous overcurrent protection, I or ANSI 50
		I neutral	Neutral protection
		Dual settings	Dual settings
		Advanced	IDMT ground-fault protection
(1) Applies to MicroLogic 5.0 X for IEC and UL standards

Only the Advanced submenu is described in this guide. For the description of other submenus, refer to DOCA0102EN MasterPact MTZ – MicroLogic X Control Unit – User Guide

Active Settings

Active settings used by the protection functions are displayed in the Quick View.

The settings in the Protection menu are the settings defined by the user. They may differ from the settings used by the protection functions when Fallback settings mode is active.

For more information, refer to DOCA0102EN MasterPact MTZ – MicroLogic X Control Unit – User Guide

Advanced

The Advanced menu presents the following data and settings:

Level 3	Level 4	Level 5	Parameter name
Advanced	IDMT GF	Protection	Enable IDMT ground-fault protection function: OFF: the following menus are not displayed and the ground-fault protection is not active. ON: the following menus are displayed.
		Action	IDMT ground-fault protection action: Trip Alarm
		Inhibit	Enable inhibit by IO module: OFF ON
		Curve	I4t, for display only.
		Ig (A)	Ig ground-fault protection threshold expressed in Amps.
		IgMax (A)	Maximum Ig ground-fault protection threshold expressed in Amps.
		tg (s)	tg ground-fault protection time delay.