Power Supply Supervision
Section 2 Installation
84
3BSE 027 941 R301
Figure 22. Redundant Power Supply Powering Units and Field Equipment
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
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 TP830
+24 V
0 V
From Mains
Breaker
Protective Ground
L–
L+
+24 V
0 V
Protective Ground
Powering
Field
Equipment
Powering
Units
From Mains
Breaker
Summary of Contents for AC 800M
Page 1: ...ControlIT AC 800M Version 2 1 Controller Hardware Hardware and Operation...
Page 2: ......
Page 3: ...Controller Hardware Hardware and Operation ControlIT AC 800M Version 2 1...
Page 10: ...7DEOH RI RQWHQWV 10 3BSE 027 941 R301...
Page 20: ...Related Documentation About This Book 20 3BSE 027 941 R301...
Page 26: ...Operating Environment Safety Summary 26 3BSE 027 941 R301...
Page 42: ...Product Release History Section 1 Introduction 42 3BSE 027 941 R301...
Page 108: ...Powering from an External 24 V DC Source Section 3 Configuration 108 3BSE 027 941 R301...
Page 118: ...Verification of Redundant CPU Section 4 Operation 118 3BSE 027 941 R301...
Page 212: ...Low Voltage Directive LVD Appendix D Directive Considerations 212 3BSE 027 941 R301...
Page 214: ...Hazardous Location Approval Appendix E Standards 214 3BSE 027 941 R301...
Page 228: ...QGH 228 3BSE 027 941 R301...
Page 229: ......