Maintenance Schedule - MTZ Maintenance Guide

Overview

11/2024 @Experts: This topic is shared in DOCA0099 MTZ Maintenance Guide, DOCA0103 MTZ End-User Maintenance Procedures and DOCA0104 MTZ Manufacturer Maintenance Procedures. Any changes made will be made in all these guides

The MicroLogic X control unit provides information to help with scheduling preventive maintenance operations. It monitors maintenance programs performed and generates events to indicate that maintenance is due.

For more information about the maintenance schedule function, refer to MasterPacT MTZ - MicroLogic X Control Unit - User Guide in the Related Documents at the beginning of this guide.

Operating Principle

The MicroLogic X control unit generates events to indicate that maintenance is due.

The schedule for maintenance operations depends on:

The operating and environmental conditions of the MasterPacT MTZ circuit breaker.
The criticality of the user application.
The date of the last maintenance program performed and declared by using EcoStruxure Power Commission software.

Basic and Standard end-user maintenance schedule events and Manufacturer maintenance schedule events are calculated:

For the first event:
- From the commissioning date of the circuit breaker, if this date is declared by using EcoStruxure Power Commission software.
- Otherwise from the assembly date of the circuit breaker.
For subsequent events, from the date of the previous maintenance program (Routine, Intermediate, or Manufacturer) performed, if the date is declared by using EcoStruxure Power Commission software.

NOTE: Subsequent Manufacturer maintenance schedule events are calculated from the previous Manufacturer maintenance program performed and declared by using EcoStruxure Power Commission software.

If the date of the maintenance program performed is not declared by using EcoStruxure Power Commission software, the MicroLogic X control unit continues to use the commissioning date or assembly date to calculate the maintenance schedule events.

NOTE: Basic maintenance events correspond to Routine end-user maintenance detailed in this guide. Standard maintenance events correspond to Intermediate end-user maintenance detailed in this guide.

Maintenance Schedule Settings

The maintenance schedule is determined from the following recorded parameters and declared settings.

The following parameters for environmental conditions are recorded by the MicroLogic X control unit:

Temperature
Percent load
Harmonics
Relative humidity
Vibration

The following parameters for environmental conditions and user application criticality are declared by using EcoStruxure Power Commission software (password-protected).

Setting		Value	Factory setting
Environmental conditions	Corrosive atmosphere	3C1 (Rural area) 3C2 (Urban area) 3C3 (Immediate vicinity of industrial pollution) 3C4 (Inside polluting industrial premises)	3C2
	Salt environment	None (No salt mist) Moderate (Salt mist < 10 km from seaside) Significant (Salt mist < 1 km from seaside)	None
	Dust	Low level Moderate level High level	Low level
User application criticality		Low Moderate High	Low

Data Availability

Maintenance schedule data is as follows:

Data of the last maintenance program performed, if the data is declared by using EcoStruxure Power Commission software:
- Program performed: Routine, Intermediate, or Manufacturer
- Date of maintenance operation
- Name of service provider
- Name of maintenance personnel
Data of the next maintenance program to be performed:
- Program to be performed: Routine, Intermediate, or Manufacturer
- Either the number of months before the program is due or the number of months it is overdue

Maintenance schedule data is available as follows:

On the MicroLogic X display screen at: Home > Maintenance > Assistance > Maint.schedule
With EcoStruxure Power Commission software
With EcoStruxure Power Device app through Bluetooth or USB OTG connection
On a remote controller using the communication network

Predefined Events

The maintenance schedule function generates the following events:

Event	History	Severity
Schedule Basic maintenance within one month	Diagnostic	Medium⁽¹⁾
Schedule Standard maintenance within one month	Diagnostic	Medium⁽²⁾
Schedule manufacturer maintenance within three months	Diagnostic	Medium⁽²⁾
(1) Disabled by default. Customizable with EcoStruxure Power Commission software. (2) Enabled by default, with pop-up messages.

For information about recommended action on events, refer to the relevant document in the Related Documents at the beginning of this guide:

MasterPacT MTZ1 - Switch-Disconnectors and Circuit Breakers with MicroLogic X Control Units - User Guide
MasterPacT MTZ2/MTZ3 - Switch-Disconnectors and Circuit Breakers with MicroLogic X Control Units - User Guide

NOTE: Global service plans delivered by Schneider Electric may include maintenance plans for your equipment, with a different wording for maintenance levels:

Basic maintenance in MicroLogic X events corresponds to Routine maintenance in service plans and in maintenance guides for MasterPacT MTZ circuit breakers with MicroLogic X control unit.
Standard maintenance in MicroLogic X events corresponds to Intermediate maintenance in service plans and in maintenance guides for MasterPacT MTZ circuit breakers with MicroLogic X control unit.
Manufacturer maintenance remains the same.