Emerson M22, M21 user manual Setting Relay options, Relay Assignment

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10. Apply test gas to confirm alarm level settings.

Important: Alarm Point 1 and Alarm Point 2 are values completely under the control of the user. If the user chooses, Alarm Point 1 can be assigned a value corresponding to a high alarm condition and Alarm Point 2 assigned a value corresponding to a low alarm condition.

To avoid confusion however, most users may want to assign Alarm Point 1 as the low alarm condition and Alarm point 2 as the high alarm condition.

4.2.5 Setting Relay options

This option allows the Alarm relay coils to be configured as energized or de-energized and latching or non-latching.

•FAULT RELAY: The Fault relay is Energized and Non-Latching. This relay is not configurable.

•ALARM RELAYS 1, 2 and 3: Factory set as De-energized and Non-Latching. These relays are configurable.

1.Enter the main menu by activating any key to get the “enter main menu” prompt, then activate switch 1 to select

“yes”.

2.Activate the up key (switch 1) or down key (switch 2) until, “Set Relay Options?” is displayed.

3.Activate the enter key (switch 3) to enter the option. The sub menu options are: ‘Fault relay’, ‘Alarm relay 1’,

‘Alarm relay 2’, ‘Alarm relay 3’.

4.Activate the down key (switch 2) or up key (switch 1) to highlight configurable Alarm relays (‘Alarm relay 1’,

‘Alarm relay 2’, ‘Alarm relay 3’).

5.Activate the enter key (switch 3) to configure the desired Alarm relay.

6.‘Norm. Energized’ or ‘Norm.De-Energized’will be highlighted at the top of the display screen. To change the Energized or De-Energized setting, activate the enter key (switch 3).

7.To change the Latching or Non-Latching setting, activate the down key (switch 2) to highlight ‘Latching’ or ‘Non- Latching’, then activate the enter key (switch 3).

8.Once the desired relay settings have been made, select “Exit” at each menu stage (sub menu and main menu).

4.2.6 Relay Assignment

This option allows the transmitter two (2) channels (with alarm levels/points) to be configured under the three (3) Alarm relays. When configuring under sub menu Alarm relay 1, “RL1:CH1 (Point 1, Point 2, Disabled)” and “RL1: CH2 (Point 1, Point 2, Disabled)” is displayed. Under sub menu Alarm relay 2, “RL2:CH1 (Point 1, Point 2, Disabled)” and “RL2:CH2 (Point 1, Point 2, Disabled)” is displayed, and under sub menu Alarm relay 3, “RL3:CH1 (Point 1, Point 2, Disabled)” and “RL3:CH2 (Point 1, Point 2, Disabled)”is displayed.

Note 1: RL1, RL2 and RL3 represents Alarm relays 1, 2 and 3. CH1 and CH2 represent channel1 and channel 2. Point 1 and Point 2 are Alarm level 1 and Alarm level 2. Alarm levels (points) are user determined and are unique to the specific channel.

Note 2: Prior to assigning relays, configure the alarm levels (points). See Section ‘4.2.4 Viewing and setting alarm levels (points)’, and then follow the steps and example below to configure the Alarm relays. Also see Table 3, Example and Table 4.

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MAN-0076 Rev 05 Millennium II December 07, 2012

Net Safety Monitoring Inc

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Contents Millennium Important Information Table of Contents Monitoring and Outputs Introduction Special conditions of useEnclosure Dimensions Transmitter Enclosure Dimensional DrawingInstallation UnpackMounting Transmitter Orientation OptionBoard assembly diagram Transmitter electronics module and Relay optionsRotating Electronics module Wiring and installation Field InstallationGuidelines SealsImportant Wiring Guidelines Cable choice and guidelinesArmored Cable preparation procedure Connecting wires Remotely mounted sensors jumper configuration Separation Jumpers positionsSensor and Transmitter terminals Sensor TerminalsRemote Reset Sensor Separation/ Remote mounting of sensorWiring drawings Non-isolated terminal connectionIsolated terminal connection Installation Checklist Transmitter and faceplate description Transmitter Power UpDisplay Menu buttons and access Intrusive AccessNon-Intrusive Access/Magnetic Reed switch Access Status LEDMenu options OperationNavigating main menu Menu structure flow chart Full calibration Normal calibration procedure Cont’d Zero calibration option Full Calibration Enable / Disable channels Viewing and setting alarm levels pointsSetting Relay options Relay AssignmentAlarm Relay 1 RL1 Alarm Relay 2 RL2 Alarm Relay 3 RL3 Modbus Setup Relay Alarm Mode setting for Oxygen sensors onlySelect Display Language Setup Current Date Setup Current TimeView Event Log Event Types Display on Screen Events Format /hostSelf Test Relay Manual ResetSensor Upper Limit Range Calibration gas value Select Gas TypeSerial Number & Firmware Version 1Fault monitoring Monitoring and outputsRelays Analog 4-20mAReg Current Output Status LED Meaning Value Red Green RS-485 Modbus RTU Reg. Value Current Output Status LED Meaning Red GreenReg# Meaning Readable Writeable Hart Communication Bit MeaningMaintaining TroubleshootingPeriodic response check Spare Parts /Accessories StorageHow to Return Equipment Appendix Appendix B Resistance Appendix C Millennium II Transmitter Specifications Approvals December 07 Net Safety Monitoring Inc

M22, M21 specifications

The Emerson M21 and M22 are advanced industrial controllers designed to enhance process automation and operational efficiency in various industries. Emerson, a leader in automation technology, introduced these models to meet the growing demands for precision, reliability, and connectivity in today’s fast-paced industrial environments.

One of the standout features of the M21 and M22 controllers is their robust processing power. They are equipped with high-speed processors that enable rapid data processing and real-time decision-making. This capability allows users to respond promptly to changing process conditions, ensuring optimal performance and minimizing downtime.

The M21 and M22 offer versatile connectivity options, supporting various communication protocols such as Ethernet, Modbus, and TCP/IP. This extensive connectivity facilitates seamless integration into existing systems, allowing for easy collaboration between devices across different platforms. Users can monitor and control processes from virtually anywhere, providing flexibility and convenience.

Scalability is another essential characteristic of the M21 and M22. These controllers can easily adapt to growing operational demands, enabling businesses to expand their automation solutions without the need for complete overhauls. Whether you're running a small system or a large, complex operation, these controllers can scale to meet your needs.

Furthermore, Emerson has incorporated advanced diagnostic and predictive maintenance features into the M21 and M22 models. These technologies leverage data analytics to predict potential failures before they occur, allowing users to take proactive measures. This not only minimizes unexpected downtime but also extends the lifespan of equipment, contributing to overall cost savings.

In terms of user interface, the M21 and M22 come with intuitive software that provides easy navigation and configuration. The interface is designed to be user-friendly, reducing the learning curve for new operators and allowing for efficient setup and management of processes.

Finally, both controllers are built with a focus on reliability and durability, making them suitable for various industrial environments, including harsh or demanding settings. Their robust design ensures consistent performance, even in challenging conditions.

In summary, the Emerson M21 and M22 controllers represent cutting-edge solutions in industrial automation, offering high processing power, flexible connectivity, scalability, advanced maintenance features, user-friendly interfaces, and robust design. Companies looking to enhance their automation capabilities will find these controllers to be valuable assets in achieving operational excellence.
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