Chapter 10 • Alarms
10-4
Rev. 6, March 2011
Part 17997
10.2
ALARM RELAYS
The Hydran 201T
i
and the Hydran 201C
i
-1 both have three alarm relays, in other words
one relay per alarm level:
• One gas High alarm relay
• One gas High-High alarm relay
• One fail alarm relay, referred to as
System
in the H201T
i
’s menus
Note: The Hydran 201Ci-C does not have alarm relays. The H201Ci-1 alarm relays are
more accessible than the H201Ti’s relays. Generally, the H201Ci-1 alarm relays are the
ones connected to an alarm panel or SCADA system.
10.2.1 Alarm Contacts
Each relay has:
• A normally open (NO) contact
• A normally closed (NC) contact
• A common contact (Type C)
The physical form of these contacts is as follows:
• Hydran 201T
i
: See the Alarm Contacts 9-Terminal Block (item 12 in Figure 2-5 on
• Hydran 201C
i
-1: See the terminals 7 to 15 of the Main Terminal Block (item 6 in
• Hydran 201C
i
-C: Does not have alarm relays and thus no alarm contacts.
10.2.2 Status of Alarm Relays
The gas High and High-High alarm relays can only be in two states:
• On (coil energized, alarm state LED’s turned on)
• Off (coil de-energized, alarm state LED’s off)
Note: The relays of the Hydran 201Ci Controller always adopt the state of the
Hydran 201Ti’s corresponding relay (except if the supervisory link is broken, in which case
Содержание Hydran 201i
Страница 1: ...GE Energy Services Digital Energy Hydran Instruction Manual 201i System ...
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Страница 8: ...Instruction Manual viii Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 22: ...Instruction Manual xxii Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 36: ...Chapter 1 Introduction 1 10 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 72: ...Chapter 3 Hydran 201Ci Controllers 3 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 114: ...Chapter 5 Before Installation 5 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 143: ...Installation Part 17997 Rev 6 March 2011 6 29 Figure 6 9 Installing the CPU Module ...
Страница 176: ...Chapter 8 Hydran 201Ci 1 Installation 8 16 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 190: ...Chapter 9 Communications and Networking 9 14 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 216: ...Chapter 11 Operating the Hydran 201i System 11 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 236: ...Chapter 12 Troubleshooting 12 20 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 244: ...Chapter 13 Maintenance 13 8 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 254: ...Appendix B Mechanical Drawings B 2 Rev 6 March 2011 Part 17997 Figure B 3 1 5 In Adaptor ...
Страница 255: ...Hydran 201Ti Intelligent Transmitter Part 17997 Rev 6 March 2011 B 3 Figure B 4 1 In Adaptor ...
Страница 262: ...Appendix C Functional Block Diagrams C 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 282: ...Appendix F Default Values of the Parameters F 4 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 284: ...Appendix G Unit Conversions G 2 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
Страница 298: ...Appendix I Glossary I 12 Rev 6 March 2011 Part 17997 PAGE LEFT INTENTIONALLY BLANK ...
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