Emerson Vilter MicroVission Operation manual

MicroVission Controller
Operation and service manual • Version 1.0

MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
READ CAREFULLY BEFORE OPERATING YOUR COMPRESSOR.
The following instructions have been prepared to assist in operation of VilterTM MicroVission Controllers.
The entire manual should be reviewed before attempting to operate.
VilterTM micro-controllers are thoroughly inspected at the factory. However, damage can occur in shipment.
For this reason, the equipment should be thoroughly inspected upon arrival. Any damage noted should be
reported immediately to the Transportation Company. This way, an authorized agent can examine the unit,
determine the extent of damage and take necessary steps to rectify the claim with no serious or costly delays.
At 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 Packard Ave
Cudahy, WI 53110 USA
Telephone: [phone]
Fax:[phone]
E-mail: [e-mail]
Equipment Identification Numbers:
Vilter Order Number: _______________________Software Version: _________________
Vilter Order Number: _______________________Software Version: _________________
Vilter Order Number: _______________________Software Version: _________________
Vilter Order Number: _______________________Software Version: _________________
Important Message
i

TOC - 1
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV
Section Page Number
Table of Contents
Important Message................................................................................................................................i
How To Use This Manual.........................................................................................................................TOC-7
Section 1 • Installation Recommendations
Proper Wiring Sizing ..............................................................................................................................1-1
Voltage Source ......................................................................................................................................1-1
Grounding .............................................................................................................................................1-2
Mixing Voltages .....................................................................................................................................1-2
DC signals..............................................................................................................................................1-2
Wiring Methods.....................................................................................................................................1-3
Best Practices.........................................................................................................................................1-4
Transformers, Fusing and UPS Sizing ......................................................................................................1-4
Section 2 • Hardware Architecture
Overview ...............................................................................................................................................2-1
Multi-I/O (Input/Output) Board .............................................................................................................2-1
Multi-IO 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 Buttons ...............................................................................................................................4-1
Section 5 • Compressor Control
Overview ...............................................................................................................................................5-1
How Compressor Control Setpoint Works? ............................................................................................5-1
Suction Pressure Control........................................................................................................................5-2
Process Temperature Control .................................................................................................................5-3
Discharge Pressure Control ....................................................................................................................5-4
Auto Cycle..............................................................................................................................................5-5
Active Control Mode ..............................................................................................................................5-8
Load Limiting.........................................................................................................................................5-9
Oil Control .............................................................................................................................................5-10

TOC - 2 MicroVission Controller • Operation and Service Manual • Emerson • 35391MV
Section Page Number
Table of Contents
Section 6 • Alarms and Trips Screen
Overview ...............................................................................................................................................6-1
Warnings. ..............................................................................................................................................6-1
Inhibits. .................................................................................................................................................6-1
Alarms... ................................................................................................................................................6-1
Trips ......................................................................................................................................................6-1
Freeze Screens ..... .................................................................................................................................6-1
Logging - Event List ..... ..........................................................................................................................6-1
Alarms & Trips Setpoints ........................................................................................................................6-2
MicroVission Safety Messages................................................................................................................6-4
Section 7 • Timers
Overview ...............................................................................................................................................7-1
Timer Types ...........................................................................................................................................7-1
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 Columns.................................................................................................................................. 9-1
Section 10 • Input / Output States Screen
Overview ...............................................................................................................................................10-1
Section 11 • User Access
Overview ...............................................................................................................................................11-1
Login ..................................................................................................................................................11-2
Manage Accounts ..................................................................................................................................11-2
Screen Security Levels............................................................................................................................11-3

TOC - 3
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV
Section Page Number
Table of Contents
Section 12 • Configuration Screen
Overview ...............................................................................................................................................12-1
Units......................................................................................................................................................12-1
Compressor Control Section .................................................................................................................. 12-2
Oil Monitoring .......................................................................................................................................12-2
Oil Level Trip ..........................................................................................................................................12-2
Touchscreen ..........................................................................................................................................12-2
Anti Recycle ...........................................................................................................................................12-3
Compressor Identification......................................................................................................................12-3
Date and Time .......................................................................................................................................12-3
VNC Account .........................................................................................................................................12-4
Alarms and Trips ....................................................................................................................................12-4
Communication.....................................................................................................................................12-4
Active Remote Control...........................................................................................................................12-4
Direct I/O...............................................................................................................................................12-4
Run Permissive.......................................................................................................................................12-4
On Communication Failure .................................................................................................................... 12-5
Ethernet ................................................................................................................................................12-5
Serial (Modbus RTU)...............................................................................................................................12-6
Configurable Main Screen Settings.........................................................................................................12-6
I/O Configuration...................................................................................................................................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
Introduction ..........................................................................................................................................C-1
Networking ...........................................................................................................................................C-1
Communication Wire.............................................................................................................................C-1
Ethernet Cable Specifications.................................................................................................................C-1
RS-482/485 Cable Specifications............................................................................................................C-1
Common Register Setup to Control the MicroVission (Compressor Control) Via Communications .........C-2
Compressor Start and Stop Commands..................................................................................................C-3
Remote Control via Direct I/O (Hard-wired)............................................................................................C-4
Control Scenario ....................................................................................................................................C-4
Remote Monitoring ...............................................................................................................................C-4
Communication Port Setup....................................................................................................................C-4

TOC - 4 MicroVission Controller • Operation and Service Manual • Emerson • 35391MV
Table 2-1. Digital I/O ..............................................................................................................................2-3
Table 2-2. Analog I/O..............................................................................................................................2-4
Table 2-3. Multi-IO Board Analog Input Jumper Tables............................................................................2-5
Table 2-4. Analog Input Board Jumper Tables..........................................................................................2-8
Table 11-1. Security Access Levels ..........................................................................................................11-3
Table A-0. Unloading Schemes ...............................................................................................................A-1
Table A-1. Type 1 Unloader - Cylinders: 2, 4, or 6 Unloading Percentage: 50%......................................... A-2
Table A-2. Type 2 Unloader - Cylinders: 4 Unloading Percentage: 25%, 50%, 75%
| Single cylinder Unloader wired to Unloader Output #1 ........................................................................A-2
Table A-3. Type 3 Unloader - Cylinders: 6 or 12 Unloading Percentage: 33%, 66% ....................................A-2
Table A-4. Type 4 Unloader - Cylinders: 8 or 16 Unloading Percentage: 25%, 50%, 75%............................A-2
Table A-5. Type 5 Unloader - Cylinders: 8, 16 Unloading Percentage: 25%, 50% .......................................A-3
Table A-6. Type 6 Unloader - Cylinders: 4 or 8 Unloading Percentage: 50%, 100% ...................................A-3
Table A-7. Type 7 Unloader - Cylinders 6 or 12 Unloading Percentage: 33%, 66%, 100%...........................A-3
Table A-8. Type 8 Unloader - Cylinders: 6 or 12 Unloading Percentage: 17%, 33%, 50%, 66%
Single cylinder Unloader wired to Unloader Output #1 ..........................................................................A-4
Table A-9. Type 9 Unloader - Cylinders: 6 or 12 Unloading Percentage: 17%, 33%, 50%, 66%, 83%
Single cylinder Unloader wired to Unloader Output #1...........................................................................A-4
Table A-10. Type 10 Unloader - Cylinders: 7 Unloading Percentage: 29%, 57% ........................................A-4
Table A-11. Type 11 - No Unloading .......................................................................................................A-4
Table A-12. Type 12 Unloader - Cylinders: 3 Unloading Percentage: 33%................................................A-4
Table A-13. Type 13Unloader - 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 Unloading Percentage: 13%, 38%, 63% Unloading -
Single cylinder Unloader wired to Unloader Output #1...........................................................................A-6
Table A-17. Type 17 Unloader - Cylinders: 6 Unloading Percentage: 33%, 50%, 66% Unloading -
Single cylinder Unloader wired to Unloader Output #1...........................................................................A-6
Table A-18. Type 18 Unloader - Cylinders: 5 Unloading Percentage: 40%, 60%
Single cylinder Unloader wired to Unloader Output #1...........................................................................A-6
Table A-19. Type 19 Unloader - Cylinders: 3 Unloading Percentage: 33%, 66%
Single cylinder Unloader wired to Unloader Output #1 and Output #2 ...................................................A-7
Table A-20. Type 20 Unloader - Cylinder: 7 Unloading Percentage: 14%, 29%, 43%, 57%
Single cylinder Unloader wired to Unloader Output #1...........................................................................A-7
Table B-1. Digital Inputs Block................................................................................................................B-1
Table B-2. Digital Outputs Block.............................................................................................................B-1
Table B-3. Analog Inputs Block ............................................................................................................... B-2
Table B-4. Analog Outputs Block ............................................................................................................ B-2
Table B-5. Calculated Values Block .........................................................................................................B-2
Table B-6. Statuses Block........................................................................................................................B-3
Table B-7. Alarm Status Words ...............................................................................................................B-4
Table B-8. Warning Status Words ...........................................................................................................B-5
Table B-9. Trip Status Words (Words 1 & 2).............................................................................................B-6
Table B-9. Trip Status Words (Words 3 & 4).............................................................................................B-7
Table B-10. Commands Block.................................................................................................................B-8
Table B-11. Compressor Control Setpoints Block....................................................................................B-9
Table B-12. Auto Cycle Block ..................................................................................................................B-10
Table B-13. Stop Load & Force Unload Block ...........................................................................................B-11
Tables

TOC - 5
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV
Table B-14. Oil Control Block..................................................................................................................B-11
Table B-15. Alarms/Trips Block (Page 1)..................................................................................................B-12
Table B-16. Alarms/Trips Block (Page 2)..................................................................................................B-13
Table B-17. Alarms/Trips Block (Page 3)..................................................................................................B-14
Table B-18. Timers Block (Page 1)...........................................................................................................B-14
Table B-19. Timers Block (Page 2)...........................................................................................................B-15
Table B-20. Configuration (Time) Block ..................................................................................................B-15
Table B-21. Configuration (Other) Block.................................................................................................B-16
Figure 1-1. MicroVission with Individual Transformer .............................................................................1-1
Figure 1-2. EMI and MIcroVission ...........................................................................................................1-1
Figure 1-3. Ground Wiring .....................................................................................................................1-3
Figure 1-4. Mixed Voltage Wiring...........................................................................................................1-3
Figure 1-5. Correct Transformer Wiring Method ....................................................................................1-3
Figure 1-6. Incorrect Transformer Wiring Method ..................................................................................1-3
Figure 2-1. Hardware Architecture Overview .........................................................................................2-1
Figure 2-2. Multi I/O Board Layout..........................................................................................................2-2
Figure 2-3. Digital Input-Output Board Layout........................................................................................2-6
Figure 2-4. Analog Input Board Layout ................................................................................................... 2-7
Figure 3-1. Main Screen..........................................................................................................................3-1
Figure 3-2. Top Status Bar ......................................................................................................................3-2
Figure 3-3. Parameters Bar.....................................................................................................................3-3
Figure 3-4. Start Dialog Box....................................................................................................................3-4
Figure 3-5. Bottom Status Bar ................................................................................................................3-5
Figure 3-6. Warning Pop-Up Window.....................................................................................................3-6
Figure 3-7. Splash Screen .......................................................................................................................3-6
Figure 3-8. Manual Run Mode Buttons....................................................................................................3-6
Figure 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 - Auto Cycle (Discharge Pressure) .............................................. 5-7
Figure 5-7. Compressor Control Screen – Active Control Mode - I/O Based Setpoint Control...................5-8
Figure 5-8. Compressor Control Screen - Load Limiting ..........................................................................5-9
Figure 5-9. Compressor Control Screen - Oil Control...............................................................................5-10
Figure 6-1. Alarms and Trips Setpoints (Page 1)......................................................................................6-2
Figure 6-2. Alarms and Trips Setpoints (Page 2)......................................................................................6-3
Figure 6-3. Alarms and Trips Setpoints (Page 3)......................................................................................6-3
Figure 7-1. Timers Screen (Page 1).........................................................................................................7-1
Figure 7-1. Timers Screen (Page 2).........................................................................................................7-2
Figure 8-1.Instrument Calibration Screen Page 1 – Analog Inputs (Suction Pressure) ............................. 8-2
Figure 8-2. Instrument Calibration Screen Page 1 – Analog Inputs (Discharge Pressure) .........................8-2
Figure 8-3. Instrument Calibration Screen Page 1 – Analog Inputs (Oil Pressure) ....................................8-3
Figure 8-4. Instrument Calibration Screen Page 1 – Analog Inputs (Filter In Pressure) .............................8-3
Figure 8-5. Instrument Calibration Screen Page 1 – Analog Inputs (Filter Out Pressure) ..........................8-4
Tables and Figures

TOC - 6 MicroVission Controller • Operation and Service Manual • Emerson • 35391MV
Figure 8-6. Instrument Calibration Screen Page 2 – Analog Inputs (Suction Temperature)...................... 8-4
Figure 8-7. Instrument Calibration Screen Page 2 – Analog Inputs (Discharge Temperature) ..................8-5
Figure 8-8. Instrument Calibration Screen Page 2 – Analog Inputs (Oil Temperature) ............................. 8-5
Figure 8-9. Instrument Calibration Screen Page 3 – Analog Inputs (Motor Current) ................................8-6
Figure 8-10. Instrument Calibration Screen Page 3 – Analog Inputs (Process Temperature) .................... 8-7
Figure 8-11. Instrument Calibration Screen Page 4 – Auxiliary Inputs (Discharge 2 Pressure).................. 8-8
Figure 8-12. Instrument Calibration Screen Page 4 – Auxiliary Inputs (Discharge 2 Temperature) ...........8-9
Figure 9-1. Event List Screen...................................................................................................................9-1
Figure 10-1. Input/Output States Screen Page 1 - Live I/O Data...............................................................10-1
Figure 10-2. Input/Output States Screen 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 Screen (Page 2) ............................................................................................12-3
Figure 12-3. Configuration Screen - Communication..............................................................................12-5
Figure 12-4. Configuration Screen - Configurable Main Screen Settings..................................................12-6
Figure 12-5. Configurable Parameters on Main Screen ...........................................................................12-7
Figure 12-6. Configuration Screen - I/O Configuration ...........................................................................12-8
Figure 13-1. Data Backup Screen - Save/Load .........................................................................................13-1
Figure 13-2. Data Backup Screen - Migrate and Factory Reset.................................................................13-2
Figure 13-3. Data Backup Screen - Setpoints Report...............................................................................13-3
Figure 13-4. SD Card Replacement ......................................................................................................... 13-6
Figure C-1. Configuration Screen (Page 3) ..............................................................................................C-1
Figure C-2. Serial Communication Ports on Single Board Computer........................................................C-2
Figure C-3. Setting MicroVission in Remote Mode ..................................................................................C-3
Figures

TOC - 7
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV
How to Use This Manual
NOTE
Manual revision should match software version.
This manual contains instructions for the MicroVission
Operation & Service Manual. It has been divided into 16
sections.
Section 1: Installation Recommendations
Section 2: Main Screen
Section 3: Hardware Architecture
Section 4: Menu Screen
Section 5: Compressor Control Screen
Section 6: Alarms and Trips Screen
Section 7: Timers Screen
Section 8: Instrument Calibration Screen
Section 9: Event List Screen
Section 10: Input/Output Screen
Section 11: User Access
Section 12: Conguration Screen
Section 13: Data Back-Up
Appendix A: Unloaders
Appendix B: Communication Tables
Appendix C: Remote Control and Monitoring
It is highly recommended that the manual be reviewed
prior to servicing the MicroVission system parts.
Figures and tables are included to illustrate key concepts.
Safety precautions are shown throughout the manual.
They are dened 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 there
are potentially hazardous situations, if not avoided, will
result in damage to equipment.
NOTE - Notes are shown when there are additional infor-
mation pertaining to the instructions explained.
NOTICE - Notices are shown when there are important
information that can help avoid system failure.
ADDITIONAL IMPORTANT NOTES
• Due to continuing changes and unit updates, always
refer to the www.Emerson.com/Vilter to make sure
you have the latest manual.
• Any suggestions for manual improvements can be
made to VilterTM Manufacturing at the contact infor-
mation on page i.

1 – 1
Section 1 •Installation Recommendations
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Proper Wiring Sizing
• Always size wire gauges as specied by the National
Electrical Code (NEC) for electronic control devices.
• For improved noise immunity, install one size larger
wire gauge than the NEC requirement to assure am-
ple current-carrying capability.
• Never under size wire gauges.
Voltage Source
• 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 amounts of EMI
emitted from the other devices connected to the sec-
ondary terminals of the transformer. See Figure 1-2:
EMI and MicroVission.
Figure 1-1. MicroVission with Individual Transformer
Figure 1-2. EMI and MicroVission

1 – 2
Section 1 •Installation Recommendations
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Grounding
• Ensure that you run continuous grounds from the
utility ground to the MicroVission. See Figure 1-3:
Ground Wiring.
• Grounds must be copper or aluminum wire.
• Never use conduit grounds.
Mixing 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,
you must install dividers between the different
voltages.
Figure 1-4. Mixed Voltage Wiring
Figure 1-3. Ground Wiring

1 – 3
Section 1 •Installation Recommendations
MicroVission Controller • Operation and Service Manual • Emerson • 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

1 – 4
Section 1 •Installation Recommendations
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Best Practices
• Do:
• Keep AC wires away from circuit boards.
• Always run conduit into the bottom or sides of an enclosure.
• Use a water-tight conduit tting to keep water from entering the enclosure, if the conduit must be placed
in the top of an enclosure.
• The MicroVission is supplied with pre-punched conduit holes for your use.
• Don’t:
• Do not run wires through the MicroVission enclosure that are not related to the compressor control.
• Do not add relays, timers, transformers, etc. In the MicroVission enclosure without rst checking with
VilterTM.
• Do not run conduit into the top of an enclosure.
• Do not run refrigerant tubing inside the enclosure.
• Do not drill metal enclosures without taking proper precautions to protect circuit boards from damage.
Transformer, Fusing and UPS Sizing
The following information can be used to help 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 (negligible), (the hardware applies a 25 mA pulsed signal, which is not constant).
For estimating purposes, assume:
A total sum constant draw for total RTDs used 50 mA
3. Each 4-20mA transmitter for an RTD = 10 mA
• So, for 120V fusing – consider 110 watts for the power supply, PLUS add any additional 120V loads that are con-
nected to the digital outputs + relays added to the panel.
1. Each unloader solenoid = 0.125 amps AC load
2. Each small solenoid = 50 watts (estimate – read the nameplate for exact load rating)
3. Large solenoids (water, hot gas) = 100 watts (estimate– read nameplate for exact load rating)
4. Each small pilot relay = 25 watts (estimate– read the nameplate for exact load rating)
5. Add load values for panel heaters if used, and heat trace tape if used

2 – 1
Section 2 •Hardware Architecture
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Overview
The MicroVission control panel utilizes the ARM PC tech-
nology with a Linux operating system. For hardware ar-
chitecture, see Figure 2-1.
The MicroVission has the following attributes
• Low power, Industrial rated ARM CPU
• 10” XGA, high resolution LCD display. (Outdoor view-
able LCD optional)
• 8-wire touch screen operator interface
• Flexible and expandable I/O
• NEMA-4 enclosure (NEMA-4X optional)
• Industrial temperature range design
Figure 2-1. Hardware Architecture Overview
Multi-I/O (Input/Output) Board
This section explains about the Multi-IO board con-
taining Digital Input/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 DC signals into a
signal that the MicroVission program can interpret. The
signals are considered analog because the input DC sig-
nal can vary from the minimum value to the maximum
value. All the signals shown by connectors 6, 7, 8, 9 and
10 are analog inputs. This board can also convert signals
from the MicroVission program into a current ranging
from 4mA to 20mA. These are called analog outputs and
shown by connectors 12 and 13. For more information
about the board layout see Figure 2-2.

2 – 2
Section 2 •Hardware Architecture
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Figure 2-2. Multi I/O Board
Layout
Multi-IO Board Digital I/O
For information about each Digital I/O signal, see Table
2-1: Digital I/O.
Oil Return Solenoid Output
• When state of Low Oil Level Digital Input is found
Active Low, this output is energized. When state
of Low Oil Level Digital Input is changed to Active
High from Active Low state, this output will be de-
energized only once Oil Recovery Solenoid Shutoff
Delay Timer is Lapsed.
Unloader (#1 to #4) Output
• These outputs are active only when the compressor
is running. When the MicroVission determines that
the compressor should increase or decrease capac-
ity, these outputs will get de-energized or energized
respectively in specic sequence as per Compressor
Type set in Conguration 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 until the trip condition is cleared.
Oil Crank Case Heater Output
• This output is active and energized when the oil
temperature is lower than the oil temperature set-
point. It is de-energized when the oil temperature is
higher than the oil temperature setpoint.
Compressor Start Output
• When the MicroVission signals the compres-
sor to start, this output is energized. When the
MicroVission signals the compressor to stop, this
output is de-energized.

2 – 3
Section 2 •Hardware Architecture
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Remote Ready Output
• This output is energized when the MicroVission
panel is enabled for remote control. If the compres-
sor parameter does not satisfy start conditions or is
placed into the manual stop position, this output is
de-energized.
Setpoint 1/2 Input
• This input will be monitored when the MicroVission
panel is enabled for remote control. When this input
is de-energized, the MicroVission will use Setpoint
1 as Control Setpoint for modulating the compres-
sor capacity. When this input is energized, the
MicroVission will use Setpoint 2 as Control Setpoint
for modulating the compressor capacity. For using
Setpoint 2, the operator should make sure that No.
of Controllers is set to 2 in Conguration screen.
Remote Decrease Input
• This input will be monitored when the MicroVission
panel is enabled for remote control. When this input
is energized, the MicroVission will unload compres-
sor by one step.
Remote Increase Input
• This input will be monitored when the MicroVission
panel is enabled for remote control. When this input
is energized, the MicroVission will load compressor
by one step.
Remote Start/Stop Input
• This input will be monitored when the MicroVission
panel is enabled for remote control or if Run
Permissive option 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, the com-
pressor will be stopped and issue a Low Oil Level
trip provided Oil Level Trip option is enabled in
Conguration screen.
High Level Shutdown Input:
• The MicroVission monitors this digital input to
check whether the power is removed from the input
module during compressor start. This input must
be energized for the compressor to operate. If de-
energized, the compressor will shut down and issue
a High Level Shutdown trip.
Compressor Motor Starter Auxiliary Input:
• This input looks for a feedback signal from the com-
pressor starter, conrming that the compressor
starter is energized.
Table 2-1. Digital I/O
Connector on Mul-IO
Board I/O # Descripon Channel Type
X1 – 1 1 Oil Return Solenoid OUTPUT
X1 – 2 2 Unloader #4 OUTPUT
X1 – 3 3 Unloader #3 OUTPUT
X1 – 4 4 Unloader #2 OUTPUT
X2 – 1 5 Unloader #1 OUTPUT
X2 – 2 6 Trip OUTPUT
X2 – 3 7 Oil Crank Case Heater OUTPUT
X2 – 4 8 Compressor Start OUTPUT
X3 – 1 9 Remote Ready OUTPUT
X3 – 2 10 Setpoint 1/2 INPUT
X3 – 3 11 Remote Decrease INPUT
X3 – 4 12 Remote Increase INPUT
X4 – 1 13 Remote Start/ Stop INPUT
X4 – 2 14 Low Oil Level INPUT
X4 – 3 15 High Level Shutdown INPUT
X4 – 4 16 Compressor Motor Auxiliary INPUT

2 – 4
Section 2 •Hardware Architecture
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Multi-IO Board Analog I/O
For information about each Analog I/O signal, see Table
2-2: Analog I/O.
Process Temperature
• Default signal is RTD. Process temperature calibra-
tion is set in the calibration screen.
Oil Temperature
• Default signal is RTD. Oil temperature calibration is
set in the calibration screen.
Discharge Temperature
• Default signal is RTD. Discharge temperature
calibration is set in the calibration screen.
Suction Temperature
• Default signal is RTD. Suction temperature calibra-
tion is set in the calibration screen.
Filter Out Pressure
• Default signal is 4-20mA. Filter Out pressure
transducer range and calibration are set in the
calibration screen.
Filter In Pressure
• Default signal is 4-20mA. Filter In pressure trans-
ducer range and calibration are set in the calibration
screen.
Table 2-2. Analog I/O
Connector on
Mul-IO Board I/O # Descripon Channel Type Signals Type
X6 – 2 1 Process Temperature INPUT 0-5 V, 0-10 V, 4-20 mA, RTD, ICTD
X6 – 5 2 Oil Temperature 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 4Sucon 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 V, 0-10 V, 4-20 mA, RTD, ICTD
X10 – 2 9Sucon Pressure INPUT 0-5 V, 0-10 V, 4-20 mA, RTD, ICTD
X10 – 5 10 Motor Amps (4-20 mA) INPUT 0-5 V, 0-10 V, 4-20 mA, RTD, ICTD
X12 – 1 11 Not Dened OUTPUT 4-20 mA
X12 – 3 12 Not Dened OUTPUT 4-20 mA
X12 – 5 13 Not Dened OUTPUT 4-20 mA
X13 – 1 14 Not Dened OUTPUT 4-20 mA
X13 – 3 15 Not Dened OUTPUT 4-20 mA
X13 – 5 16 Not Dened OUTPUT 4-20 mA
Oil Manifold Pressure
• Default signal is 4-20mA. Oil manifold pressure
transducer range and calibration are set in the cali-
bration screen.
Discharge Pressure
• Default signal is 4-20 mA. Discharge pressure trans-
ducer range and calibration are set in the calibration
screen.
Suction Pressure
• Default signal is 4-20 mA. Suction pressure trans-
ducer range and calibration is set in the calibration
screen.
Motor Amps
• Default signal is a 4-20 mA. The Motor Amps calibra-
tion is set in the calibration screen.

2 – 5
Section 2 •Hardware Architecture
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.0
Channel 9 Signal JP - 33 JP - 34 JP - 35 JP - 36
Analog
Input 9
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 10 Signal JP - 37 JP - 38 JP - 39 JP - 40
Analog
Input 10
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
Table 2-3. Multi-IO Board Analog Input Jumper Tables
Channel 1 Signal JP - 1 JP - 2 JP - 3 JP - 4
Analog
Input 1
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 2 Signal JP - 5 JP - 6 JP - 7 JP - 8
Analog
Input 2
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 3 Signal JP - 9 JP - 10 JP - 11 JP - 12
Analog
Input 3
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 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 OUT OUT OUT IN
Channel 6 Signal JP - 21 JP - 22 JP - 23 JP - 24
Analog
Input 6
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 7 Signal JP - 25 JP - 26 JP - 27 JP - 28
Analog
Input 7
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 8 Signal JP - 29 JP - 30 JP - 31 JP - 32
Analog
Input 8
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
Multi-IO Board Analog Input Jumper Tables
The following tables are used to congure each chan-
nel of the Multi-IO board analog inputs, signal type and
range desired by the operator, see Table 2-3.