Manufacturer Preventive Maintenance Program

Definition

@TechPub writer (03/2019): FYI: Reminder: guide with the Manufacturer procedures (PSE1287) is released 12/2017. Not updated since for FWv2 or FWv3 projects.

The Manufacturer preventive maintenance program must be done exclusively by Schneider Electric field service representatives.

The Manufacturer preventive maintenance program includes the Basic and Standard end-user preventive maintenance programs.

The Manufacturer preventive maintenance program comprises:

Complete function checks.
Condition checks (test-based).
Complete part and system servicing (cleaning, greasing).
Control unit replacement (diagnostic-based).

The Manufacturer preventive maintenance program must be performed every five years in the case of normal operating conditions and user application with low criticality. Refer to the recommended frequency for the Manufacturer maintenance program for other cases.

Procedures

Part	Procedure title
Device	Measure insulation resistance
Mechanism	Check opening and closing forces
Mechanism	Clean and regrease the mechanism
Breaking unit	Measure the contact resistance for each pole
Auxiliaries	Preventively replace XF, MX, MN voltage releases⁽¹⁾
	Check opening time of MX opening voltage release
	Check closing time of XF closing voltage release
	Check opening time of MN undervoltage release
Control unit	Save protection settings, event histories (MicroLogic P and H) and create reports
	Check continuity of the tripping chain by primary injection
	Check integrated instantaneous protection (DIN/DINF) tripping
	Check operation of MicroLogic thumbwheels
	Preventively replace MicroLogic control unit and electrronic modules⁽²⁾
Chassis	Check connection/disconnection torque
Chassis	Clean and regrease chassis of MasterPact drawout devices
Communication system	Check operation of the breaker communication module (BCM)
	Check operation of the chassis communication module (CCM)
	Check data transmission via communication bus
Mechanical interlocking	Operate mechanical interlocking by cable
Mechanical interlocking	Operate mechanical interlocking by rod
(1) As part of the preventive maintenance plan, Schneider Electric recommends replacing the voltage releases after 15 years of operation. (2) As part of the preventive maintenance plan, Schneider Electric recommends that the field service representative replaces the MicroLogic control unit and associated M2C modules after 15 years of operation. Each time the MicroLogic control unit is replaced, the performer, and the rating and sensor plugs must be replaced by the field service representative.

Time Required

The average total time required for a Schneider Electric field service representative to perform this maintenance program including the Standard one, is as follows:

From 1.5 hours to 2 hours depending on the frame size, for a fixed device with all accessories installed.
From 2 hours to 3 hours depending on the frame size, for a drawout device with all accessories installed.