3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
3
Table of contents
1 Introduction and overview.......................................................................................................................... 9
1.1
General information .......................................................................................................................9
1.1.1
Structure of the manual..................................................................................................................9
1.1.2
Introduction ....................................................................................................................................9
1.1.3
SENTRON circuit breakers ............................................................................................................9
1.2
Bus systems.................................................................................................................................11
1.2.1
PROFIBUS DP.............................................................................................................................11
1.2.2
Ethernet........................................................................................................................................14
1.2.3
Modbus RTU................................................................................................................................15
1.2.4
Communication structure of the SENTRON circuit breakers.......................................................16
2
General information ................................................................................................................................. 19
2.1
Other system manuals and literature...........................................................................................19
2.2
Approvals .....................................................................................................................................19
2.3
Standards and approvals .............................................................................................................20
2.4
Orientation aids............................................................................................................................20
2.5
Up-to-the-minute information at all times.....................................................................................20
2.6
Scope...........................................................................................................................................20
3
3WL air circuit breakers........................................................................................................................... 23
3.1
Introduction and overview ............................................................................................................23
3.1.1
The CubicleBUS ..........................................................................................................................26
3.1.2
Communications capability of electronic trip units (ETU) ............................................................27
3.1.3
Function overview of the overcurrent tripping system .................................................................29
3.1.4
Availability of the data on the CubicleBUS ..................................................................................31
3.2
COM15 module and BSS module................................................................................................33
3.2.1
PROFIBUS DP COM15 module ..................................................................................................33
3.2.2
Connection of the COM15 module ..............................................................................................34
3.2.3
PROFIBUS installation guideline .................................................................................................37
3.2.4
PROFIBUS write protection (DPWriteEnable).............................................................................38
3.2.5
Data exchange via the COM15....................................................................................................38
3.2.6
Breaker Status Sensor (BSS) ......................................................................................................41
3.3
Metering functions........................................................................................................................42
3.3.1
Metering function PLUS...............................................................................................................42
3.3.2
Voltage transformer .....................................................................................................................48
3.3.3
Delay of the threshold warning ....................................................................................................53
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