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Section 5

•

Compressor Control

MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0

Low Suction Pressure

• When the suction pressure value is equal to or less

than  this  setpoint,  algorithm  will  unload  the  com-
pressor  by  one  step.  Algorithm  will  continue  un-
loading  the  compressor  step-by-step  to  minimum
load until the suction pressure value exceeds this
setpoint.

High Motor Current

• When the motor current value is equal to or greater

than  this  setpoint,  algorithm  will  unload  the  com-
pressor  by  one  step.  Algorithm  will  continue  un-
loading  the  compressor  step-by-step  to  minimum
load until the motor current value drops below this
setpoint.

Unload Timer

• This is the time duration that force unload algo-

rithm will use while unloading each step during
the force unload condition. For example, when the
suction pressure value is equal to or greater than
the “High Suction Pressure” Force Unload setpoint,
the algorithm will unload one step and wait for the
time as defined by this setpoint. Once the time set is
lapsed, the algorithm will check again if the suction
pressure value is equal to or greater than the “High
Suction Pressure” Force Unload setpoint. If yes, the
algorithm will unload one more step.

Low Suction Pressure

• When the suction pressure value is equal to or less

than this setpoint, algorithm will not allow loading
of the compressor. However, if the suction pressure
value exceeds this setpoint, algorithm will allow
loading of the compressor.

High Motor Current

• When the motor current value is equal to or greater

than this setpoint, algorithm will not allow loading
of the compressor. However, if the motor current
value drops below this setpoint, algorithm will allow
loading of the compressor.

Force Unload Setpoints
High Suction Pressure

• When the suction pressure value is equal to or great-

er than this setpoint, algorithm will unload the com-
pressor by one step. Algorithm will continue unload-
ing the compressor step-by-step to minimum load
until the suction pressure value drops below this
setpoint.

High Discharge Pressure

• When the discharge pressure value is equal to or

greater than this setpoint, algorithm will unload the
compressor by one step. Algorithm will continue un-
loading the compressor step-by-step to minimum
load until the discharge pressure value drops below
this setpoint.

Figure 5-8. Compressor Control Screen - Load Limiting

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Summary of Contents for Vilter MicroVission

Page 1: ...MicroVission Controller Operation and service manual Version 1 0 ...

Page 2: ......

Page 3: ...t the same time the local VilterTM representative or the home office should be notified of any claim made All inquires should include the VilterTM sales order number compressor serial and model number These can be found on the compressor nameplate on the compressor All requests for information services or parts should be directed to VilterTM Manufacturing LLC Customer Service Department 5555 South...

Page 4: ......

Page 5: ... Board Digital I O 2 2 Multi IO Board Analog I O 2 4 Multi IO Board Analog Input Jumper Tables 2 4 Digital In Out Board 2 6 Analog Input Board 2 7 Analog Input Board Jumper Tables 2 8 Section 3 Main Screen Overview 3 1 Top Status Bar 3 2 Parameters Bar 3 3 Control Parameters Box 3 4 Bottom Status Bar 3 5 Splash Screen 3 6 Manual Mode Run Buttons 3 6 Section 4 Menu Screen Overview 4 1 Navigation Bu...

Page 6: ...1 Section 8 Instruments Calibration Overview 8 1 I O 8 1 Process Temperature Inputs 8 1 Devices Calibration 8 1 Channel Calibration 8 1 Analog Inputs Pressure 8 2 Analog Input Temperature 8 4 Analog Inputs 8 6 Motor Current 8 6 4 20mA Scale 8 6 Process Temperature or Pressure 8 7 Auxiliary Inputs 8 8 Device Calibration 8 8 Channel Calibration 8 8 Section 9 Event List Overview 9 1 Event list Column...

Page 7: ...uration 12 8 Section 13 Data Backup Overview 13 1 Refresh 13 1 Save Load 13 1 Available Devices 13 2 Factory Reset 13 3 Setpoints Report 13 3 Database Backup Procedure 13 4 Appendix A Unloaders Unloader Tables A 1 Appendix B Communication Tables MicroVission Communication Table B 1 Alarm Status Words B 4 Warning Status Words B 5 Trip Status Words B 6 Appendix C Remote Control and Monitoring Introd...

Page 8: ... Unloader Cylinders 8 16 Unloading Percentage 25 50 75 100 A 5 Table A 14 Type 14 Unloader Cylinders 6 Unloading Percentage 33 50 66 Unloading Single cylinder Unloader wired to Unloader Output 1 A 5 Table A 15 Type 15 Unloader Cylinders 8 Unloading Percentage 13 25 38 50 63 75 Unloading Single cylinder Unloader wired to Unloader Output 1 and Output 2 A 5 Table A 16 Type 16 Unloader Cylinders 8 Unl...

Page 9: ...4 1 Menu Screen 4 1 Figure 5 1 Compressor Control Screen Suction Pressure Control 5 2 Figure 5 2 Compressor Control Screen Process Temperature Control 5 3 Figure 5 3 Compressor Control Screen Discharge Pressure Control 5 4 Figure 5 4 Compressor Control Screen Auto Cycle Suction Pressure 5 5 Figure 5 5 Compressor Control Screen Auto Cycle Process Temperature 5 6 Figure 5 6 Compressor Control Screen...

Page 10: ...Page 2 Live I O Data 10 2 Figure 10 3 Input Output States Screen Freeze Data Trip Condition 10 2 Figure 10 4 Input Output States Screen Freeze Data 10 3 Figure 10 5 Input Output States Screen Auxiliary Analog Inputs 10 3 Figure 11 1 User Access Screen Login 11 1 Figure 11 2 User Access Screen Manage Accounts 11 2 Figure 12 1 Configuration Screen Initial Setup Page 1 12 1 Figure 12 2 Configuration ...

Page 11: ...hly recommended that the manual be reviewed prior to servicing the MicroVission system parts Figuresandtablesareincludedtoillustratekeyconcepts Safety precautions are shown throughout the manual They are defined as the following WARNING Warning statements are shown when there are hazardous situations if not avoided will result in se rious injury or death CAUTION Caution statements are shown when t...

Page 12: ... Transformers block a large percentage of Electromagnetic Interference EMI It is recom mended that the Vilter MicroVission should be iso lated with its own control transformer for the most reliable operation See Figure 1 1 MicroVission with Individual Transformer Avoid connecting MicroVission to breaker panels and central control transformers if possible as the MicroVission is exposed to large amo...

Page 13: ...g Voltages Separate different voltages from each other and separate AC from DC see Figure 1 4 Mixed Voltage Wiring Each voltage level must be run in separate conduit o 460 VAC o 230 VAC o 120 VAC o 24 VAC o DC Signals If your installation site has wireways or conduit trays you must install dividers between the different voltages DC signals If your installation site has wireways or conduit trays yo...

Page 14: ...erson 35391MV 1 0 Figure 1 5 Correct Transformer Wiring Method Wiring Methods Each MicroVission panel should have its own individual control transformer see Figure 1 5 Correct Transformer Wiring method and Figure 1 6 Incorrect Transformer Wiring Method Figure 1 6 Incorrect Transformer Wiring Method ...

Page 15: ...lp determine the power requirements for a MicroVission panel This infor mation can be helpful for sizing transformers or UPS devices that will power the MicroVission panel The MicroVission panel contains a single power supply 1 24VDC 4 5 A 108 watts The DC loads that are attached to the power supply are divided approximately as follows 1 Each press transducer 24VDC 30 mA each x4 120 mA 2 Each RTD ...

Page 16: ...Output and Analog Input Output signals The Multi IO board converts signals generated by the MicroVission program into 120VAC signals as well as de tect external 120VAC inputs to signal the MicroVission program All the signals shown by connectors 1 2 3 and 4 are digital in that there are only two states available either ON or OFF See board layout Figure 2 2 The Multi IO board converts the varying D...

Page 17: ...roVission determines that the compressor should increase or decrease capac ity these outputs will get de energized or energized respectively in specific sequence as per Compressor Type set in Configuration screen See Appendix A Unloaders section for more details Trip Output This output is energized when the system has no Trips If a trip is issued the output de energizes and stays de energized unti...

Page 18: ...ion is enabled When this input is en ergized the compressor will be allowed to start in selected run mode If the compressor is running and this input is found de energized the compressor will be stopped and the compressor will have to wait for next start until this input gets energized Low Oil Level Input This input must be energized for the compressor to operate If this input gets de energized th...

Page 19: ...mperature INPUT 0 5 V 0 10 V 4 20 mA RTD ICTD X7 2 3 Discharge Temperature INPUT 0 5 V 0 10 V 4 20 mA RTD ICTD X7 5 4 Suction Temperature INPUT 0 5 V 0 10 V 4 20 mA RTD ICTD X8 2 5 Filter Out Pressure INPUT 0 5 V 0 10 V 4 20 mA RTD ICTD X8 5 6 Filter In Pressure INPUT 0 5 V 0 10 V 4 20 mA RTD ICTD X9 2 7 Oil Manifold Pressure INPUT 0 5 V 0 10 V 4 20 mA RTD ICTD X9 5 8 Discharge Pressure INPUT 0 5 ...

Page 20: ...A IN OUT OUT OUT ICTD OUT IN OUT OUT 0 10 VOLT OUT OUT IN OUT RTD OUT OUT OUT IN Channel 4 Signal JP 13 JP 14 JP 15 JP 16 Analog Input 4 0 5 VDC OUT OUT OUT OUT 4 20 mA IN OUT OUT OUT ICTD OUT IN OUT OUT 0 10 VOLT OUT OUT IN OUT RTD OUT OUT OUT IN Channel 5 Signal JP 17 JP 18 JP 19 JP 20 Analog Input 5 0 5 VDC OUT OUT OUT OUT 4 20 mA IN OUT OUT OUT ICTD OUT IN OUT OUT 0 10 VOLT OUT OUT IN OUT RTD ...

Page 21: ...hese LEDs indi cate when a 120VAC output is being produced or a 120VAC signal is detected Voltage LEDs In the following diagram the Voltage LEDs are marked in an Orange color These LEDs indicate the correct voltage of both the 5V DC and 24V DC pow er sources Communication LEDs In the following diagram the Communication LEDs are marked in a Green color These LEDs show the active communications betw...

Page 22: ...s For the correct jumper set ting for a given application see Table 2 4 Analog Input Jumper Tables Voltage LEDs In the following diagram the Voltage LEDs are marked in Orange color These LEDs indicate the correct voltage of both the 5V DC and 24V DC pow er sources Figure 2 4 Analog Input Board Layout Communication LEDs In the following diagram the Communication LEDs are marked in Green color These...

Page 23: ...ed in the motor starter Use Analog Input 1 B when current transformers are installed in the motor starter Channel 2 Signal JP 4 JP 5 JP 6 JP 28 Analog Input 2 0 5 VOLT OUT OUT OUT OUT 1 5 VOLT OUT OUT OUT OUT 0 10 VOLT OUT OUT IN OUT 4 20 mA IN OUT OUT OUT ICTD OUT IN OUT OUT RTD OUT OUT OUT IN Channel 3 Signal JP 7 JP 8 JP 9 JP 29 Analog Input 3 0 5 VOLT OUT OUT OUT OUT 1 5 VOLT OUT OUT OUT OUT 0...

Page 24: ... IN OUT OUT 2 RTD OUT OUT OUT IN 2 ACTUATOR OUT OUT OUT OUT 1 POTENTIOMETER OUT OUT OUT OUT 3 JP 25 Position 1 sends 24VDC unregulated to supply terminal 2 2A limit Position 2 sends 24VDC regulated to supply terminal 25mA limit Position 3 sends 5VDC regulated to supply terminal Channel 8 Signal JP 22 JP 23 JP 24 JP 34 JP 26 Analog Input 8 0 5 VOLT OUT OUT OUT OUT 2 1 5 VOLT OUT OUT OUT OUT 2 0 10 ...

Page 25: ...ar will remain visible so that operator can always view the critical infor mation The Splash screen is the only dynamic section All navigation to any other screens will be performed through the Main screen Information of Loaded and Unloaded Cylinders Loaded Cylinders are shown in Green Progress Bar dis plays the Load percentage Top Status Bar I O and Status Values are displayed as per the settings...

Page 26: ...us Bar the information bar in green color appears with information flashed on it The Top Status Bar and one or more information bars alternatively ap pears in a sequence Information Bar Black The Information Bar with Black color displays the opera tional modes which are different than the normal run ning condition For example the load limit condition The compressor is unable to completely load due...

Page 27: ...ll appear Auto Manual or Remote See Figure 3 4 Stop Button When pressed stops the compressor in all cases Reset Button When pressed clears any current alarms trips and status messages that may be displayed on the information bar NOTE If the condition that created the alarm trip or status message still exits after pressing the Reset button the message will reappear on the information bar Remote But...

Page 28: ...iff This is calculated as Oil Manifold Pressure minus Suction Pressure Oil Filter Diff This is calculated depending on the Oil Monitoring set ting in the Configuration screen When Oil Monitoring Setting is set as a No Oil Filter Monitoring Oil Filter Differential is not calculated and value displayed is NA b Only Oil Filter In Oil Filter Differential is calculated as Filter Inlet Pressure minus Oi...

Page 29: ...displaying warnings is pressed See Figure 3 6 At the bottom of the status bars operator can view the following information from left to right Current User if any is logged in Compressor Run Hours Current Date Current Time At the right side of the status bars operator can view the following function buttons Maintenance Button Pressing the Maintenance button will give the operator access to the main...

Page 30: ...s as per settings on Page 4 of Configuration screen and the Menu button Operator can navigate to the Menu screen by pressing Menu but ton which in turn will allow navigation to other screens on MicroVission See Figure 3 7 Figure 3 6 Warning Pop up Window Manual Run Mode Buttons When operator runs compressor in Manual run mode two buttons plus and minus will be available on display along both sides...

Page 31: ...ibration Navigates to the Instrument Calibration screen where the operator can calibrate all the system sensors Event List Navigates to the Event List screen where the operator can view the systems events such as trips or alarms in descending chronological order Input Output States Allows viewing of the live data of all analog and digital input and outputs Also allows viewing of a snapshot of all ...

Page 32: ...nd requires the operator to tune these settings to achieve the best operation For Suction Pressure Control Process Temperature Control Discharge Pressure Control operator can use two different set of values for compressor control These values are categorized as Setpoint 1 and Setpoint 2 Active Control Mode decides which set of values will be used to control the compressors How Compressor Control S...

Page 33: ...is lapsed the control al gorithm will again check if the suction pressure is less than or equal to the Pressure Control setpoint minus the Unload Offset value If yes MicroVission unloads the next step Suction Pressure Control WhentheActiveControlModeissetto SuctionPressure SP1 or Suction Pressure SP2 the control setpoint is Suction Pressure Control Pressure Control Setpoint The suction pressure of...

Page 34: ... one step and then waits for the load interval time Once the load interval time is lapsed the control algorithm will again check if the process temperature is equal to or greater than the Temp Control setpoint plus the Load Offset value If yes MicroVission loads the next step Unload Offset Theoffsetvaluewhenremovedfromthe TempControl setpoint determines the process temperature for un loading the c...

Page 35: ...tep and then waits for the load interval time Once the load interval time is lapsed the control algorithm will again check if the discharge pressure is less than or equal to the Pressure Control setpoint minus the Load Off set value If yes MicroVission loads the next step Unload Offset The offset value when added to the Pressure Control setpoint determines the discharge pressure for unload ing the...

Page 36: ...es sure remains equal to or greater than the Start Pressure Stop Pressure When the suction pressure is less than or equal to this setpoint the compressor will stop Stop Delay Before the compressor stop there is a delay for the set time to ensure that the suction pressure remains less than or equal to the Stop Pressure Auto Cycle Process Temperature Enable Enables the Auto cycle control Uncheck the...

Page 37: ...the discharge pressure is less than or equal to this setpoint the compressor will start Start Delay Before the compressor start there is a delay for the set time to ensure that discharge pressure remains less than or equal to the Start Pressure Stop Pressure When the discharge pressure is equal to or greater than this setpoint the compres sor will stop Stop Delay Before the compressor stop there i...

Page 38: ...5 7 Section 5 Compressor Control MicroVission Controller Operation and Service Manual Emerson 35391MV 1 0 Figure 5 6 Compressor Control Screen Auto Cycle Discharge Pressure ...

Page 39: ...mote Setpoint 1 2 Digital Input is De Energized Active Control Mode will be Setpoint 1 NOTE This checkbox will be displayed only when Direct I O is disabled in Configuration Screen Load Limiting The stop load and force unload feature s primary pur pose is an attempt to prevent the compressor from trip ping off due to instrument reading For example if the suction pressure drops very low the compres...

Page 40: ...ure value is equal to or greater than the High Suction Pressure Force Unload setpoint If yes the algorithm will unload one more step Low Suction Pressure When the suction pressure value is equal to or less than this setpoint algorithm will not allow loading of the compressor However if the suction pressure value exceeds this setpoint algorithm will allow loading of the compressor High Motor Curren...

Page 41: ...tions it might be possible that compres sor does not start due to low crankcase oil temperature Oil Crankcase Heater Temperature When the oil temperature falls below this setpoint the oil heater 7th Digital Channel on Multi IO Board will turn ON Note there is a 2 F differential associ ated with this setpoint For example when set at 100 F the oil heater will turn ON at 98 F and turn OFF at 102 F Fi...

Page 42: ...e value of a parameter drops below or rises above the configured alarm setpoint during the compressor start Inhibits are shown in a Red color banner on the top and bottom status bars Alarms The MicroVission uses Alarms to notify the operator of running parameters that if left unchecked could result in the compressor shutting down due to a trip Alarms are only active when compressor is running The ...

Page 43: ...eration and Service Manual Emerson 35391MV 1 0 Figure 6 1 Alarms Trips Setpoints Page 1 Alarms Trips setpoints This screen provides three different pages to configure Alarm and Trip setpoints along with corresponding delay tabs for configuration of delay time ...

Page 44: ...6 3 Section 6 Alarms and Trips MicroVission Controller Operation and Service Manual Emerson 35391MV 1 0 Figure 6 2 Alarms Trips Setpoints Page 2 Figure 6 3 Alarms Trips Setpoints Page 3 ...

Page 45: ... different set of Alarm Trip setpoints which will be active depending on Active Control Mode selected from Compressor Control screen High Discharge Pressure Warning High Discharge Pressure Inhibit High Discharge Pres sure Alarm High Discharge Pressure Trip Discharge Pressure High Discharge Pressure Alarm Setpoint 1 Set point 2 Discharge Pressure High Dis charge Pressure Alarm Setpoint 1 Setpoint 2...

Page 46: ... Alarm Trip setpoints Low Suction Temperature Warning Low Suction Temperature Inhibit Low Suction Tempera ture Alarm Low Suction Temperature Trip Suction Temperature Low Suction Temperature Alarm Setpoint Suction Temperature Low Suc tion Temperature Alarm Setpoint Suction Tempera ture Low Suction Temperature Alarm Setpoint Suction Temperature Low Suction Temperature Trip Setpoint High Discharge Te...

Page 47: ... Trip Setpoint Low Crankcase Oil Temperature Run Below Messages will be displayed on Main screen when Oil Temperature value drops below configured set points Refer Figure 6 2 for Alarm Trip setpoints These safeties will be only active once Crankcase Oil Temp Changeover Timer is lapsed Low Crankcase Oil Temperature Alarm Low Crankcase Oil Tem perature Trip Oil Temperature Low Crankcase Oil Temperat...

Page 48: ...ve configured set points Refer Figure 6 3 for Alarm Trip setpoints These safeties will be only active if below two conditions are met 1 When Oil Monitoring option selected in Configuration Screen is Oil Filter In Oil Filter Out or Only Oil Filter In 2 When Filter Diff Pressure Changeover Timer is running Filter Diff Pressure Calculation for Oil Monitoring options Oil Filter In Oil Filter Out Only ...

Page 49: ... Diff Pressure Run Trip Setpoint High Motor Amps Below Messages will be displayed on Main Screen when Motor Amps value rises above configured setpoints Refer Figure 6 3 for Alarm setpoints These safeties will be only active once High Motor Amps Bypass Timer is lapsed High Motor Amps Alarm High Motor Amps Trip Motor Amps High Motor Amps Alarm Setpoint Motor Amps High Mo tor Amps Trip Setpoint High ...

Page 50: ...scharge Temperature Trip Set point Remote Comm Time out Below Messages will be displayed on Main Screen when there is no remote communication to the MicroVission for time as set in Compressor Failure Detect Timer Refer Timers screen for setpoint Remote Comm Time out Alarm will be only monitored if Revert to Local Control option is set for On Commu nication Failure setting in Configuration screen R...

Page 51: ...rip will be monitored even when compressor is idle High Level Shutdown Warning High Level Shutdown Inhibit High Level Shutdown Trip High Level Shutdown Digi tal Input is Active Low High Level Shutdown Digital Input is Active Low during Compressor Start High Level Shutdown Digital Input is Active Low while Compressor is Running Starter Below message will be displayed on Main Screen when Motor Auxil...

Page 52: ...Oil Level Digital Input is Active Low Low Oil Level Digital Input is Active Low Low Oil Level Alarm Delay Time Low Oil Level Digital Input is Active Low Low Oil Level Trip Delay Time Low Discharge Pressure Below Messages will be displayed on Main Screen when there is a failure while reading Discharge Pressure value from Measuring Instrument There is no user configured setpoint Low Discharge Pressu...

Page 53: ...ter Outlet Pressure 66 5 Psig Filter Outlet Pressure 66 5 Psig Filter Outlet Pressure 66 5 Psig Low Discharge 2 Pressure Below Messages will be displayed on Main Screen when there is a failure while reading Discharge 2 Pressure value from Measuring Instrument There is no user configured setpoint These safeties will be only active when No of Cylinders set in Configuration screen is 12 cyl or 16 cyl...

Page 54: ...ring the time to be expire before the listed event can occur Timer Setpoints Following are the setpoints that the operator can config ure on MicroVission Load Increase Start Delay At compressor startup the compressor capacity will be at minimum load for this time This is to allow compres sor and system conditions to stabilize After this timer expires the system modulates the compressor capacity ac...

Page 55: ...tpoints will remain active After the timer has expired the High Filter Diff Pressure Start safety setpoints will become inactive and the High Filter Diff Pressure Run safety setpoints will become active High Motor Amps Bypass Starting motors can typically pull much more than cur rent than its rated full load amps for a short time This timer ignores that sudden inrush of current for the speci fied ...

Page 56: ...ts but once the counter reaches to the set value it requires a one hour window between compressor starts for the counter to reset NOTE The operator will be able to modify Hot Starts per Hour setpoint only if Hot Starts option is set for Anti Recycle setting in the Configuration screen Oil Recovery Solenoid Shutoff Delay This is the time for which Oil Recovery Solenoid Digital Output will remain ON...

Page 57: ...these two pages are divided into two sec tions Device Calibration and Channel Calibration Devices Calibration The Device Calibration section is where the operation parameters of the Instrument are defined Default Devices By selecting this option the operator will have access to several common devices via a drop down list The devices are predefined and if one is selected then all the setpoints will...

Page 58: ...nt Calibration Screen Page 1 Analog Inputs Discharge Pressure Figure 8 1 Instrument Calibration Screen Page 1 Analog Inputs Suction Pressure Analog Inputs Pressure On the Instrument Calibration Screen Page 1 the opera tor can calibrate following pressure sensors Suction Pressure Discharge Pressure Oil Pressure Filter In Filter Out ...

Page 59: ...ation MicroVission Controller Operation and Service Manual Emerson 35391MV 1 0 Figure 8 3 Instrument Calibration Screen Page 1 Analog Inputs Oil Pressure Figure 8 4 Instrument Calibration Screen Page 1 Analog Inputs Filter In Pressure ...

Page 60: ...erature On the Instrument Calibration Screen Page 2 the opera tor can calibrate following temperature sensors Suction Temperature Discharge Temperature Oil Temperature Figure 8 5 Instrument Calibration Screen Page 1 Analog Inputs Filter Out Pressure Figure 8 6 Instrument Calibration Screen Page 2 Analog Inputs Suction Temperature ...

Page 61: ...on MicroVission Controller Operation and Service Manual Emerson 35391MV 1 0 Figure 8 7 Instrument Calibration Screen Page 2 Analog Inputs Discharge Temperature Figure 8 8 Instrument Calibration Screen Page 2 Analog Inputs Oil Temperature ...

Page 62: ...much as possible In addition the operator will need a value into the Enter Desired Value entry box that is equal to the measured value in amps by a calibrating measurement device After entering the measured value the displayed motor current in Calibrated Value field may still be off slightly In this case re enter the desired value and the displayed value should get progressively closer 4 20mA Scal...

Page 63: ...nding on the Process Control type selected by the operator in the Configuration screen For more information see Configuration section The tab is divided into two sections Device Calibration and Channel Calibration with Default Devices and Custom Device as well as Offset and Range Calibration features as described for the standard Pressure and Temperature Inputs Figure 8 10 Instrument Calibration S...

Page 64: ... instrument is connected then the operator would select temperature from the Units dropdown box then set the minimum and maximum value for the scale Channel Calibration The Channel Calibration section defines the type of sig nal sent by the Instrument Offset Once the two point calibration is complet ed it is common for a small error to exist By enter ing the value of the error from the calibrated ...

Page 65: ...8 9 Section 8 Instruments Calibration MicroVission Controller Operation and Service Manual Emerson 35391MV 1 0 Figure 8 12 Instrument Calibration Screen Page 4 Auxiliary Inputs Discharge 2 Temperature ...

Page 66: ...event list through the Data Backup Screen Event List Columns Date Displays the date of the event in MM DD YYYY format Time Displays the time of the event in HH MM SS format The time data displays AM PM informa tion when 12 hour format is configured in the Configuration screen Event Type Displays the type of message for a list ing The common event types are Start Stop Trip Inhibit Alarm Info and Sy...

Page 67: ... data is saved due to trip condition or Freeze Data but ton was pressed by the operator see Figures 10 3 10 4 Latest Freeze data is shown in Freeze 1 tab Up to five Freeze pages can be saved The oldest Freeze page will be removed when more than five Freeze events occur These freeze events can be downloaded to a USB drive through Data Backup screen NOTE The format in which time is displayed on the ...

Page 68: ...put States Screen 10 2 MicroVission Controller Operation and Service Manual Emerson 35391MV 1 0 Figure 10 3 Input Output States Screen Freeze Data Trip Condition Figure 10 2 Input Output States Screen Page 2 Live I O Data ...

Page 69: ...ut Output States Screen 10 3 MicroVission Controller Operation and Service Manual Emerson 35391MV 1 0 Figure 10 4 Input Output States Screen Freeze Data Figure 10 5 Input Output States Screen Auxiliary Analog Inputs ...

Page 70: ... at this level have the most potential of causing damage to the compressor Therefore this access is restricted to those only with the highest level of competence The User Access screen also provides options to add new operators and modify or delete existing operators Any operator can add an additional operator but can only add operator of lesser or equal security level The MicroVission will be shi...

Page 71: ...nd entering the name via the pop up keyboard Operator Password This entry box is for operator s password The password can be entered by touching the password entry box and entering the password via pop up keyboard Manage Accounts The Manage Accounts tab allows addition removal and modification of authorized users See Figure 11 2 Operators This window contains the list of authorized users already a...

Page 72: ...nd their base security levels see Table 11 1 Most screens have more than one security level The base security level gives the user access to the setpoints that can change the performance of the compressor The secondary security level is typically level 3 and is reserved for those setpoints that require a high level of care and knowledge of the system to make changes safely without damaging the sys...

Page 73: ...ility to change the compressor run hours This is typically used when replacing an older micro controller on an existing compressor with a new MicroVission No of Cylinders The operator should set appropriate setting as per the compressor connected This setting informs the control program to properly process the number of analog channels for your compressor For instance if 12 or 16 cylinders is sele...

Page 74: ...Pressure Filter Outlet Pressure inputs will not get monitored Oil Filter Differential Pressure will not get calculated Safeties related to High Filter Differential Pressure will not be active Only Oil Filter In When this option is selected Only Filter Inlet Pressure input will get monitored while Filter Outlet Pressure input will not get monitored Oil Filter Differential Pressure will get calculat...

Page 75: ...as run for the entire time of the Accumulative Anti Recycle Timer and then the com pressor stops the compressor will be allowed to re start immediately The operator can view anti recycle time on the Main screenif Anti Recycle optionisselectedinConfigurable Main Screen Settings on Page 4 Compressor Identification This section sets the identification for a MicroVission unit Name Unique identifier th...

Page 76: ...te Control Select the mode of remote control The operator any one option from Direct I O Ethernet Serial and None Direct I O Enables the Direct I O Inputs When checkbox is en abled the operator can select any one Direct I O option from Auto Control and Digital Manual Control Auto Control This option will allow the operator to run compressor in Direct I O Auto Run Mode The algorithm will use setpoi...

Page 77: ...ompressor has started running in the Remote Run Mode the Communication Failure Detect Timer as config ured in Timers screen will start If no further com munication with MicroVission takes place for the configured time the compressor will be stopped due to Remote Comm Timeout Trip MicroVission will also display Remote Comm Timeout Trip Message and add time stamped trip event to Event List screen Et...

Page 78: ... display of their values on the Main screen Each row will have two dropdown boxes The first drop down box will have options like Standard Analog I O Standard Digital I O and Status Value to select the type of value to be displayed on the Main Screen Based on the first dropdown box selection the second drop down box will show list of values for selection The value set from the second dropdown box w...

Page 79: ...12 7 MicroVission Controller Operation and Service Manual Emerson 35391MV Section 12 Configuration Screen Figure 12 5 Configurable Parameters on Main Screen ...

Page 80: ...icroVission this is where these cards are enabled for use by its algo rithms Some features of the MicroVission will not be available unless specific expansion cards are selected see Figure 12 6 Analog Input 1 Enables the optional Analog Input card 1 Digital Input Output 1 Enables the optional Digital Input Output card 1 Figure 12 6 Configuration Screen I O Configuration ...

Page 81: ...en information meaning none of the data is encrypted and operator is free to examine it The log files are all saved as simple ASCII text and the databases can be examined with SQLite Refresh The Refresh button is used to initiate a scan of the USB ports and list any devices found in the Available Devices window Save Load In this section operator can either save the MicroVission setpoints and log i...

Page 82: ...ed into a zip file So a zip file will have to be selected to load the data or overwritten when saved Once a zip file is selected the name will be shown in the Filename window Unmount By Pressing the Unmount button any USB drive se lected in the Available Devices window will be dis connected from the operating system and can be safely removed from the USB port Back The Back button returns the opera...

Page 83: ...sion back to the factory default settings Setpoints Report The setpoints report screen offers the operator ability to generate a setpoints report for all screens The re ports are stored as csv files and can be saved to a USB drive from Save Load screen by selecting the Setpoints Report option in Data Items section during backup of database The csv file can be imported in any spread sheet applicati...

Page 84: ...ly tested many differ ent manufacturers and sizes a partial list is given below o SanDisk micro cruzer 2 0 GB o Imation 2 0GB o Kingston DataTraveler 512 MB o SanDisk mini cruzer 128 MB 1 With the original SD card installed into the MicroVission SBC insert the flash drive into the USB port This port is located along the left side of the single board computer above the ethernet connec tor See Figur...

Page 85: ... KNOWN issues that we have found with this procedure If you have communication connection issues after restoring the database you may have to re enter the IP address that is shown on page 3 of the con figuration screen If you experience problems after the Restore function then re enter your commu nication settings Record Operating Setpoints And Configuration Information Before powering down the Mi...

Page 86: ...ect No of Cyl inders and No of Unloaders Re enter the Compres sor Runtime on page 2 of the configuration screen Ensure you re select any optional boards that are installed and apply those additions 3 Re enter all Control Limits 4 Re enter all Alarm and Trip setpoints The most vital thing is under the Delay tab enter 5 seconds for all alarm and trip delays 5 Re enter all Timer Setpoints 6 Re enter ...

Page 87: ...cylinder on Unloader Output 1 TYPE9 6 or 12 cylinders with 17 33 50 66 83 unloading Single cylinder on Unloader Output 1 TYPE10 7 cylinders with 29 57 unloading TYPE11 Compressor with NO unloading TYPE12 3 cylinders with 33 unloading TYPE13 8 or 16 cylinders with 25 50 75 100 unloading TYPE14 6 cylinders with 33 50 66 unloading Single cylinder on Unloader Output 1 TYPE15 8 cylinders with 13 25 38 ...

Page 88: ...entage 25 50 75 Single cylinder on Unloader Output 1 Load Compressor Start Output Unloader Output 1 single cylinder Unloader Output 2 double cylinder Unload 0 OFF 0 0 0 100 25 1 1 1 75 50 1 0 1 50 75 1 1 0 25 100 1 0 0 0 Table A 3 Type 3 Unloader Cylinders 6 or 12 Unloading Percentage 33 66 Load Compressor Start Output Unloader Output 1 Unloader Output 2 Unload 0 OFF 0 0 0 100 33 1 1 1 66 66 1 0 1...

Page 89: ...2 Unload 0 OFF 0 0 0 100 0 ON 1 1 1 100 50 1 0 1 50 100 1 0 0 0 Table A 7 Type 7 Unloader Cylinders 6 or 12 Unloading Percentage 33 66 100 0 output OFF 1 output ON Load Compressor Start Output Unloader Output 1 Unloader Output 2 Unloader Output 3 Unload 0 OFF 0 0 0 0 100 0 ON 1 1 1 1 100 33 1 0 1 1 66 66 1 0 0 1 33 100 1 0 0 0 0 Table A 8 Type 8 Unloader Cylinders 6 or 12 Unloading Percentage 17 3...

Page 90: ...0 0 100 17 1 1 1 1 83 33 1 0 1 1 66 50 1 1 0 1 50 66 1 0 0 1 33 83 1 1 0 0 17 100 1 0 0 0 0 Table A 10 Type 10 Unloader Cylinders 7 Unloading Percentage 29 57 Load Compressor Start Output Unloader Output 1 Unloader Output 2 Unload 0 OFF 0 0 0 100 43 1 1 1 57 71 1 0 1 29 100 1 0 0 0 Table A 11 Type 11 Compressor with no Unloading Load Compressor Start Output 0 OFF 0 100 1 Table A 12 Type 12 Unloade...

Page 91: ...g Single cylinder on Unloader Output 1 Load Compressor Start Output Unloader Output 1 single cylinder Unloader Output 2 single cylinder Unloader Output 3 double cylinder Unloader Output 4 double cylinder Unload 0 OFF 0 0 0 0 0 100 25 1 1 1 1 1 75 37 1 0 1 1 1 63 50 1 0 0 1 1 50 62 1 0 1 0 1 38 75 1 0 0 0 1 25 87 1 0 1 0 0 13 100 1 0 0 0 0 0 Table A 15 Type 15 Unloader Cylinders 8 Unloading Percent...

Page 92: ... 1 38 87 1 1 0 0 13 100 1 0 0 0 0 Table A 17 Type 17 Unloader Cylinders 6 Unloading Percentage 33 50 66 Unloading Single cylinder on Unloader Output 1 Load Compressor Start Output Unloader Output 1 single cylinder Unloader Output 2 double cylinder Unloader Output 3 double cylinder Unload 0 OFF 0 0 0 0 100 33 1 0 1 1 66 50 1 1 0 1 50 66 1 0 0 1 33 100 1 0 0 0 0 Table A 18 Type 18 Unloader Cylinders...

Page 93: ...ngle cylinder Unloader Output 2 single cylinder Unload 0 OFF 0 0 0 100 33 1 1 1 66 66 1 0 1 33 100 1 0 0 0 0 output OFF 1 output ON Table A 20 Type 20 Unloader Cylinders 7 Unloading Percentage 14 29 43 57 Single cylinder on Unloader Output 1 Load Compressor Start Output Unloader Output 1 single cylinder Unloader Output 2 double cylinder Unloader Output 3 double cylinder Unload 0 OFF 0 0 0 0 100 43...

Page 94: ...ower Range Higher Range values from MicroVission Panel and accordingly maintain their own table Ethernet IP Address Modbus Address Digital Inputs Data Type Value Mode Lower Range Higher Range N50 0 40001 Setpoint 1 2 INT 0 OFF 1 ON Read NA NA N50 1 40002 Remote Decrease INT 0 OFF 1 ON Read NA NA N50 2 40003 Remote Increase INT 0 OFF 1 ON Read NA NA N50 3 40004 Remote Start Stop INT 0 OFF 1 ON Read...

Page 95: ...N52 7 40067 Discharge Pressure F INT Read NA NA N52 8 40068 Suction Pressure F INT Read NA NA N52 9 40069 Motor Amps F INT Read NA NA Ethernet IP Address Modbus Address Analog Outputs Data Type Value Mode Lower Range Higher Range N53 0 40100 Compressor VFD Speed F INT Currently Unused Read NA NA N53 1 40101 Not Assigned F INT Currently Unused Read NA NA N53 2 40102 Not Assigned F INT Currently Unu...

Page 96: ...ord 1 WORD Read NA NA N55 7 40147 Trip Status Word 2 WORD Read NA NA N55 8 40148 Trip Status Word 3 WORD Read NA NA N55 9 40149 Trip Status Word 4 WORD Read NA NA N55 10 40150 Current Run Mode ENUM 0 Idle 1 Waiting 2 Starting 3 Manual 4 Auto 5 Remote Auto 6 Remote Manual 7 Remote Step Hold 8 Remote Ready Idle 9 Direct I O Auto 10 Direct I O Manual 11 Direct I O Step Hold 12 Auto Sequencing Read NA...

Page 97: ...essure Alarm Bit 2 Unused Bit 3 Low Suction Temperature Alarm Bit 3 Unused Bit 4 Low Crankcase Oil Temperature Alarm Bit 4 Unused Bit 5 Low Oil Pressure Diff Alarm Bit 5 Unused Bit 6 Low Oil Level Alarm Bit 6 Unused Bit 7 High Discharge Pressure Alarm Bit 7 Unused Bit 8 High Discharge 2 Pressure Alarm Bit 8 Unused Bit 9 High Process Temperature Alarm Bit 9 Unused Bit 10 High Process Pressure Alarm...

Page 98: ...2 Low Oil Filter In Pressure Warning Bit 3 Low Suction Temperature Warning Bit 3 Low Oil Filter Out Pressure Warning Bit 4 Low Crankcase Oil Temperature Start Warning Bit 4 Unused Bit 5 Low Oil Level Warning Bit 5 Unused Bit 6 High Discharge Pressure Warning Bit 6 Unused Bit 7 High Discharge 2 Pressure Warning Bit 7 Unused Bit 8 High Process Pressure Warning Bit 8 Unused Bit 9 High Discharge Tempe...

Page 99: ...Temperature Inhibit Bit 3 Low Crankcase Oil Temperature Start Inhibit Bit 3 Low Oil Filter In Pressure Inhibit Bit 4 Low Oil Level Inhibit Bit 4 Low Oil Filter Out Pressure Inhibit Bit 5 Low Suction Temperature Inhibit Bit 5 Unused Bit 6 High Discharge Pressure Inhibit Bit 6 Unused Bit 7 High Discharge 2 Pressure Inhibit Bit 7 Unused Bit 8 High Process Pressure Inhibit Bit 8 Unused Bit 9 High Disc...

Page 100: ...il Pressure Diff Trip Bit 5 Low Discharge Pressure Trip Bit 6 Low Oil Level Trip Bit 6 Low Discharge Temperature Trip Bit 7 High Discharge Pressure Trip Bit 7 Low Discharge 2 Pressure Trip Bit 8 High Discharge 2 Pressure Trip Bit 8 Low Discharge 2 Temperature Trip Bit 9 High Process Pressure Trip Bit 9 Low Oil Filter In Pressure Trip Bit 10 High Discharge Temperature Trip Bit 10 Low Oil Filter Out...

Page 101: ...e ENUM 0 Suction Pressure if enabled 1 Process Control if enabled 2 Discharge Pressure if enabled Read Write NA NA N56 4 40174 Remote Step Load INT 1 Load Read Write NA NA N56 5 40175 Remote Step Unload INT 1 Unload Read Write NA NA N56 6 40176 Step Hold INT Currently Unused Read Write NA NA N56 7 40177 Active Setpoint ENUM 1 Setpoint 1 2 Setpoint 2 if enabled Read Write NA NA N56 8 40178 Start Co...

Page 102: ...3 Unload Offset Setpoint 1 Suction Press Process Control Discharge Press F INT Read Write 0 1 0 1 0 5 150 0 300 0 20 0 N57 4 40204 Unload Interval Setpoint 1 Suction Press Process Control Discharge Press INT Read Write 1 1 1 600 600 5 N57 5 40205 Control Setpoint 2 Suction Press Pro cess Control Discharge Press F INT Read Write 15 0 100 0 15 0 150 0 300 0 400 0 N57 6 40206 Load Offset Setpoint 2 S...

Page 103: ...Suction Press Process Control Dis charge Press F INT Read Write 15 0 100 0 15 0 150 0 150 0 400 0 N58 3 40223 Stop Delay Time Setpoint 1 Suction Press Process Con trol Discharge Press INT Read Write 1 1 1 600 300 300 N58 4 40224 Start Setpoint 2 Suction Press Process Control Dis charge Press F INT Read Write 15 0 100 0 15 0 150 0 150 0 400 0 N58 5 40225 Start Delay Time Setpoint 2 Suction Press Pr...

Page 104: ... NA N59 2 40242 Low Suction Pressure Stop Load Setpoint F INT Read NA NA N59 3 40243 High Motor Current Stop Load Setpoint F INT Read NA NA N59 4 40244 High Suction Pressure Force Unload Setpoint F INT Read NA NA N59 5 40245 High Discharge Pressure Force Unload Setpoint F INT Read NA NA N59 6 40246 Low Suction Pressure Force Unload Setpoint F INT Read NA NA N59 7 40247 High Motor Current Force Unl...

Page 105: ...00 210 N61 6 40406 High Process Temperature Alarm Setpoint 1 F INT Read Write 100 210 N61 7 40407 Low Suction Pressure Alarm Setpoint 2 F INT Read Write 15 300 N61 8 40408 Low Suction Pressure Trip Set point 2 F INT Read Write 15 300 N61 9 40409 High Discharge Pressure Alarm Setpoint 2 F INT Read N61 10 40410 High Discharge Pressure Trip Setpoint 2 F INT Read N61 11 40411 Low Process Temperature A...

Page 106: ...tpoint 2 F INT Currently Unused Read Write 15 300 Table B 15 Alarms Trips Block Page 1 continued Ethernet IP Address Modbus Address Alarms Trips Page 2 Data Type Value Mode Lower Range Higher Range N62 0 40430 Low Suction Temperature Alarm F INT Read Write 100 210 N62 1 40431 Low Suction Temperature Trip F INT Read Write 100 210 N62 2 40432 High Discharge Temperature Alarm F INT Read NA NA N62 3 4...

Page 107: ...ure Run Alarm F INT Read NA NA N63 5 40465 High Filter Diff Pressure Run Trip F INT Read NA NA N63 6 40466 High Motor Amps Alarm F INT Read NA NA N63 7 40467 High Motor Amps Trip F INT Read NA NA Ethernet IP Address Modbus Address Timers Page 1 Data Type Value Mode Lower Range Higher Range N64 0 40500 Load Increase Start Delay seconds INT Read NA NA N64 1 40501 Compressor Interlock Bypass seconds ...

Page 108: ...imer minutes INT Read Write 6 60 N65 4 40524 Hot Starts per Hour INT Read Write 1 10 N65 5 40525 Oil Recovery Solenoid Shutoff Delay seconds INT Read NA NA N65 6 40526 Low Oil Level Alarm Delay seconds INT Read NA NA N65 7 40527 Low Oil Level Trip Delay seconds INT Read NA NA Table B 20 Configuration Time Block Ethernet IP Address Modbus Address Configuration Time Data Type Value Mode Lower Range ...

Page 109: ...3 2 1 Unloader 50 3 2 Unloaders 25 50 4 2 Unloaders 25 50 75 5 2 Unloaders 29 57 6 2 Unloaders 33 66 7 2 Unloaders 40 60 8 2 Unloaders 50 100 9 3 Unloaders 13 38 63 10 3 Unloaders 14 29 43 57 11 3 Unloaders 17 33 50 66 12 3 Unloaders 17 33 50 66 83 13 3 Unloaders 25 50 75 14 3 Unloaders 33 50 66 15 3 Unloaders 33 66 100 16 4 Unloaders 13 25 38 50 63 75 17 4 Unloaders 25 50 75 100 N67 2 40612 Sucti...

Page 110: ...points INT 0 No 1 Yes Read NA NA N67 9 40619 Restart on Power Fail ENUM Currently Unused Read Write NA NA N67 10 40620 Oil Monitor ing ENUM 0 No Oil Filter Monitoring Read NA NA 1 Only Oil Filter In 2 Oil Filter In and Oil Filter Out N67 11 40621 Oil Level Trip Available INT 0 No 1 Yes Read NA NA N67 12 40622 Anti Recycle ENUM 0 True Anti Recycle Read NA NA 1 Accumulative Anti Recycle 2 Hot Starts...

Page 111: ...Specifications The following cables are recommended for RS 422 485 serial communications Although you may elect to use other cables a low capac itance less than 15 pF ft is important for high speed digital communication links The cables listed below are all 24 gauge 7x32 stranded with 100 ohm nominal im pedance and a capacitance of 12 5 pF ft Select from the following four pair three pair and two ...

Page 112: ...e MicroVission Compressor Control Via Communications Register Setup and Control Scenario The MicroVission panel first needs to be placed in REMOTE mode before the sending the Compressor Control commands Registers 40170 through 40180 To do this press the START button on the main page and then the REMOTE button See Figure C 3 Setting MicroVission in Remote Mode Modbus Register 40171 Active Remote Co...

Page 113: ...ntrol mode to Process Temp control mode or vice versa This can be done via communications using the following register Modbus Register 40173 Auto Capacity Control Type 0 Suction Pressure if enabled from Configuration screen 1 Process Temp if enabled from Configuration screen 2 DischargePressure ifenabledfromConfiguration screen Compressor Start and Stop Commands Modbus Register 40178 Start Command...

Page 114: ...icroVission needs to be placed in REMOTE mode To do this press the green color START button on the main page and then the REMOTE button The Remote Start Stop input is now active The state of the Remote Enable Output should be determined by the controlling device When it is determined to be ON then the controlling device can energize the Remote Start Stop input After the compressor has started then...

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Page 116: ...35391MV 1 0 5 18 Emerson and Vilter are trademarks of Emerson Electric Co or one of its affiliated companies 2018 Vilter Manufacturing LLC All rights reserved ...

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