General Principles

Functional Safety Introduction

The TeSys T motor management system is a part of a global architecture. To provide the functional safety, some risks must be analyzed such as:

• Global functional risks

• Risk of hardware and software breakdown

• Electromagnetic environmental risks.

To reduce the electromagnetic environment risks, installation rules and wiring must be respected.

For more information on EMC, refer to the Electrical Installation Guide chapter ElectroMagnetic Compatibility (Wiki version available in English only on www.electrical-installation.org).

Installation Rules

Installation rules that must be respected to enable the LTMR to operate correctly include:

• Installation rules for the components:

  • Association of the LTMR controller with the LTME expansion module.

  • Installation in a switchboard such as Okken, Blokset, or another type.

• LTMR controller wiring rules:

  • Wiring of the power supply

  • Wiring of the I/Os: logic input wiring and logic output wiring

• Communication network wiring rules.

Installation Rules in a Switchboard

The installation of the LTMR controller in the withdrawable drawer of a switchboard presents constraints specific to the type of switchboard:

• For installation of the LTMR controller in a Schneider Electric Okken switchboard, refer to the Okken Communications Cabling & Wiring Guide (available on request).

• For installation of the LTMR controller in a Schneider Electric Blokset switchboard, refer to the Blokset Communications Cabling & Wiring Guide (available on request).

• For installation of the LTMR controller in other types of switchboard, follow the specific EMC instructions described in this guide and refer to the relative instructions specific to your type of switchboard.