Section 2 Installation
Installing the SS822 Voting Unit
3BSE 027 941 R301
81
Installing the SS822 Voting Unit
The SS822 voting unit is used to connect two redundant power supplies to a
common load. Depending on the system configuration requirements, the two
redundant power supplies may be connected to completely separate mains supplies
or to the same mains supply, as shown in
Use the following procedure to install the voting unit SS822:
1.
Mount the voting unit SS822 onto the DIN-rail, adjacent to the power supplies.
2.
Connect the voting unit to the selected SD821/822/823 power supply units, in
required configuration. See
3.
Connect the SS822 voting unit to the processor unit.
shows the connection to PM861/PM864 in redundant configuration.
Figure 19. Redundant Power Supply
OK F OK
A+B+L+
SS822
F
+
+
A
B
L+ L–
L+ L+ L– L–
N
L PE
OK
SD821
L+ L+ L– L–
N
L PE
OK
SD821
SA
SB
L–
L+
Supervision
signals to
CPU unit via
+24 V
0 V
From Mains
Breaker
Protective Ground
TP830
Содержание AC 800M
Страница 1: ...ControlIT AC 800M Version 2 1 Controller Hardware Hardware and Operation...
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Страница 3: ...Controller Hardware Hardware and Operation ControlIT AC 800M Version 2 1...
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Страница 20: ...Related Documentation About This Book 20 3BSE 027 941 R301...
Страница 26: ...Operating Environment Safety Summary 26 3BSE 027 941 R301...
Страница 42: ...Product Release History Section 1 Introduction 42 3BSE 027 941 R301...
Страница 108: ...Powering from an External 24 V DC Source Section 3 Configuration 108 3BSE 027 941 R301...
Страница 118: ...Verification of Redundant CPU Section 4 Operation 118 3BSE 027 941 R301...
Страница 212: ...Low Voltage Directive LVD Appendix D Directive Considerations 212 3BSE 027 941 R301...
Страница 214: ...Hazardous Location Approval Appendix E Standards 214 3BSE 027 941 R301...
Страница 228: ...QGH 228 3BSE 027 941 R301...
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