Table of Contents
B 1091 en-3118 7
3.4
Options for motors for use in Zone 21 and Zone 22 ......................................................................... 42
3.4.1 Operation with frequency inverter ....................................................................................... 42
3.4.2 External fan ........................................................................................................................ 43
3.4.3
Second temperature sensor 2TF ........................................................................................ 44
3.4.4
Back stop ............................................................................................................................ 44
3.4.5 Brake .................................................................................................................................. 44
3.4.6 Overview of brake installation for NORD ATEX motors ...................................................... 45
3.4.7
NORD Ex motor type plate (Ex tb, EX tc) according to EN 60079 for operation with a
frequency inverter ............................................................................................................... 46
3.5 Explosion protected motors according to TP TC012/2011 for the Eurasian Economic Union .......... 47
3.5.1 Type plates / Labelling ........................................................................................................ 47
3.5.2 Standards ........................................................................................................................... 48
3.5.3
Service life .......................................................................................................................... 48
3.5.4
Special operating conditions (X-labelling) ........................................................................... 48
4
Synchronous motors – special information ........................................................................................... 49
4.1
Type designation .............................................................................................................................. 49
4.2
Connection ....................................................................................................................................... 49
4.3
Encoders .......................................................................................................................................... 50
4.4 Commissioning ................................................................................................................................ 50
4.5 Maintenance and servicing .............................................................................................................. 50
5
Replacement parts .................................................................................................................................... 51
6 Declarations of Conformity ...................................................................................................................... 52
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