background image

- 44 -

Warning Value

This menu lets you set the Warning band width, a positive and negative warning
point relative to the setpoint. If the setpoint changes, the warning points also
change. You can assign separate digital outputs to Hi and Lo Warnings.

Selectable Values: 0 to 255, 35.5, 2.55, .255 or .0255, depending on the way
you set up the Input menus.

Warning High

This menu lets you disable the warning Hi function or set it to the alarm functions.
(The Warning Hi activates if the process value (PV) rises above the deviation
band value, and remains active until the PV goes below the deviation band value
minus the deadband value.)

Selectable Values: Latched, Unlatched, or Off

Warning High Output Number

This menu assigns a digital output which activates when the channel is in high
deviation alarm. The digital output only activates if you have set the high
deviation alarm to On.

Selectable Values: 1 to 34, None

NOTE
All digital outputs are combined. Therefore you can assign more than
one alarm to the same output number, and the output will be On if any
of those alarms is On.

Summary of Contents for Scan Alarm C14

Page 1: ...ATI UK Limited 6 Iron Bridge Drive Bank Chambers 33 Stamford St Collegeville PA 19426 Mossley Ashton u Lyne OL50LL Ph 800 959 0299 Ph 0800 018 4020 610 917 0991 44 0 1457 832800 Fax 610 917 0992 Fax...

Page 2: ...osure to excessive gas concentrations Should inspection indicate that sensors have been expended rather than failed prematurely the warranty shall not apply The Manufacturer assumes no liability for c...

Page 3: ...parameters after a power failure This safety feature however does not eliminate the need for other external independent safety devices in dangerous conditions Analytical Technology also includes ANAS...

Page 4: ...by themselves or they can be grouped with other alarms to activate an output Alarm Outputs You can specify alarm setpoints to operate outputs as latched or unlatched functions Global Alarm When any a...

Page 5: ...protected against overcurrent Common Mode Rejection 5 V 60 dB dc to 1 kHz and 120 dB at selected line frequency A D Converter Integrates voltage to frequency Digital Inputs Number 4 Configuration Opti...

Page 6: ...ble 1 ZONE DIGITAL OUTPUT 1A 1 1B 2 1C 3 2A 4 2B 5 2C 6 3A 7 3B 8 3C 9 4A 10 4B 11 4C 12 Miscellaneous Specifications Serial Interface Type RS 485 4 wire Baud Rate 2400 or 9600 user selectable Error C...

Page 7: ...ttery Backup Optional 12VDC Environmental Specifications Storage Temperature 20 to 60 C Operating Temperature 0 to 40 C Humidity 10 to 95 Non Condensing Physical Dimensions Scanner Panel Mount 9 70 x4...

Page 8: ...ces External safety devices should be used to prevent potentially dangerous and unsafe conditions upon equipment failure Always assume that this device can fail with outputs full on or full off by the...

Page 9: ...nly one scanner it is the last scanner in the system Use jumper JU1 to select the terminating resistor place it in B position for termination and A position for non termination Connect the shields to...

Page 10: ...10 Mechanical Installation Figure 1 Wall Mount Enclosure Dimensions ATI 0247...

Page 11: ...11 Figure 2 Panel Mount Mounting Dimensions ATI 0257...

Page 12: ...12 Figure 3 Panel Mount Enclosure Dimensions ATI 0255 Figure 4 Panel Mount Version Cutout Specs for Scanner ATI 0254...

Page 13: ...13 Figure 5 2 Relay Module Enclosure Dimensions 80 0040...

Page 14: ...14 Figure 6 4 Relay Module Enclosure Dimensions 80 0036...

Page 15: ...15 Electrical Connections SEE APPENDIX 1 IN THE BACK OF THE MANUAL FOR THE GENERAL CONNECTION DIAGRAM...

Page 16: ...16 Figure 7 A12 UniSens Connection ATI 0256 CHANNEL 1 SHOWN...

Page 17: ...17 Figure 8 B12 2 Wire Connections ATI 0249...

Page 18: ...18 Figure 9 C12 17 Combustible Transmitter Connections ATI 0251...

Page 19: ...19 Figure 10 Powered 4 20mA Input Transmitter Connections ATI 0250...

Page 20: ...20 See Appendix 2 in back of manual for The Relay Module Wiring Diagram...

Page 21: ...he front panel If you are using ANASCAN please see the ANASCAN User s Guide The next diagram shows how to reach the operator menus from Single Channel Display To change global parameters channel input...

Page 22: ...se ANASCAN a program designed specifically for the Scanner Front Panel Keys Yes Press Yes to Select a menu Answer Yes to Yes No questions Increase a number or choice you re editing No Press No to Skip...

Page 23: ...the process is in a no alarming state Acknowledge an alarm if the process is in an alarming state Change SP Press Change SP to change the setpoints Func The FUNC key is not used in normal operation It...

Page 24: ...b display if it is enabled Press twice to start Channel Scanning Display The Channel Scanning Display shows information for each channel for one second Press any key to stop scanning mode Job Display...

Page 25: ...Single Channel Display of the channel you want to change and press the key the setpoint is the desired value for the process You should see a display like this Press to change the setpoint Then press...

Page 26: ...r the global alarm The key operates differently in latched and unlatched mode an alarm can only be cleared when the process is in a non alarming state and the Alarm Reset key is pressed In un latched...

Page 27: ...nu Press to store the value you have selected If you decide not to edit the menu press to stop editing and return to the main menu Each display contains the default value for that specific menu and be...

Page 28: ...28 See Appendix 3 in the back of the manual For the Scanner Software Flowchart Diagram...

Page 29: ...etpoints high low process setpoints high low deviation setpoints and deadband settings and channel alarm delay If a remote job has been selected by enabling remote jobs the following message will appe...

Page 30: ...appear on the display Deselect the remote job if local job selection is desired Job Select Inputs Use this menu to run up to 8 jobs remotely It lets you set the number of job select inputs The Scanner...

Page 31: ...digital inputs used for job selection You can set the active state to closed low or open high Selectable values High or Low Startup Alarm Delay Use this menu to set a startup delay for process and dev...

Page 32: ...d assign each subsequent Scanner the next higher address Selectable values 1 32 Communications Error Checking This selection allows you to set the data check algorithm used in the communications proto...

Page 33: ...rotocol Selectable values Anafaze ANA Allen Bradley AB ModBus RTU MOD AC Line Frequency This menu lets you configure the Scanner to match an AC Line frequency of 50 or 60 Hz This function is provided...

Page 34: ...n be wired to the Scanner When activated it performs the same function as if the key was pressed Selectable values High or Low EPROM Information This view only display shows the Scanner s Eprom versio...

Page 35: ...input type available for unused channels The Scanning display doesn t show channels you ve set to skip Input Type Linear See the Linear Scaling section this chapter and Appendix 4 Skip Channel is not...

Page 36: ...Menus The linear scaling menus appear under the Setup Channel Inputs main menu Linear scaling is available for linear inputs only It lets you scale the raw input readings to the engineering units of...

Page 37: ...play select the setting with the desired number of decimal places before and after the decimal point Use a display format that matches the range and resolution of the process variable The display form...

Page 38: ...fault values for the rest of the Linear Scaling Menus Display Format Default High PV Default Low PV 9999 to 30000 10000 0 999 to 3000 1000 0 99 9 to 3000 0 1000 00 0 99 99 to 300 00 100 00 00 9 999 to...

Page 39: ...e low reading value together define one of the points on the Linear Scaling function s conversion line The default low PV is determined by the display format you selected refer to the Display Format T...

Page 40: ...tically or change faster than the system can respond If the input filter is enabled the process variable responds to a step change by going to 2 3 of the actual within the number of scans you set If a...

Page 41: ...he process variable goes above a value you set They remain active until the process variable goes below that value minus the deadband See the diagram below Any digital output can be assigned to one or...

Page 42: ...e channel s process variable Alarm Delay You can set the Scanner to delay normal alarm detection and alarm reporting There are two kinds of alarm delay Startup alarm delays detection of process alarms...

Page 43: ...turn off the Alarm or set it to one of the alarm functions See the previous description for an explanation of these choices Selectable values Off Latched Unlatched Alarm Output Number This menu lets...

Page 44: ...unctions The Warning Hi activates if the process value PV rises above the deviation band value and remains active until the PV goes below the deviation band value minus the deadband value Selectable V...

Page 45: ...s 1 to 34 None Trouble Setpoint This menu is used to set a Trouble Setpoint Trouble activates when the process variable goes below the Trouble setpoint It deactivates when the process variable goes ab...

Page 46: ...eadband This deadband value applies to the high process low process high deviation and low deviation alarms for the channel you are editing The alarm deadband sets the hysteresis of the alarm action w...

Page 47: ...ontinuously present for longer than the alarm delay time Selectable Values 0 to 255 seconds Manual I O Test Press at this prompt to see menus which can help you test the digital inputs digital outputs...

Page 48: ...test it Select the output to test in the previous menu On may be Low or High depending on the digital output polarity you set All outputs are set to Off when you exit this menu Press or to toggle the...

Page 49: ...epeatedly contact Analytical Technology service department AC Fail If the Scan Alarm is configured with battery backup this lamp will illuminate to indicate that AC Power has been interrupted and the...

Page 50: ...50 APPENDIX 1 General Customer Connections Diagram ATI 0248...

Page 51: ...51 Appendix 2 Relay module wiring diagram ATI 0271...

Page 52: ...52 APPENDIX 3 Software Flowchart ALARM ACK CHNG SP OFF NONE 25 LCH NONE LCH NONE 0 UNL NONE 2 0 F 0 0 T 999 3000 10000Hz 10000Hz 0Hz 0Hz 3 Scans NONE Lo w 0 On 0 9600 Mo d BCC 60Hz High Lo w BOLD...

Page 53: ...milliampsat 0 0 PSI and 20 mA at 50 0 PPM Setup The Sensor measures PPM in tenths so the appropriate display format is 999 9 to 3000 0 This table shows the input readings PV Displayed Sensor Input Re...

Reviews: