Emerson VISSION 20/20 service manual Description Type

Page 18

Digital Input/Output

BOARD

I/O #

 

DESCRIPTION

 

TYPE

 

 

#

 

 

 

 

 

1

1

 

Compressor Start

 

OUTPUT

1

2

 

Oil Pump Start

 

OUTPUT

1

3

 

Capacity Increase

 

OUTPUT

1

4

 

Capacity Decrease

 

OUTPUT

1

5

 

Volume Increase

 

OUTPUT

1

6

 

Volume Decrease

 

OUTPUT

1

7

 

Oil Sump Heater

 

OUTPUT

1

8

 

Alarm

 

OUTPUT

2

9

 

Slide Valve Set point #1 (Economizer)

 

OUTPUT

2

10

 

Slide Valve Set point #2 (Hot Gas)

 

OUTPUT

2

11

 

Slide Valve Set point #3

 

OUTPUT

2

12

 

Slide Valve Set point #4

 

OUTPUT

2

13

 

Liquid Injection #1

 

OUTPUT

2

14

 

Liquid Injection #2

 

OUTPUT

2

15

 

Remote Enabled

 

OUTPUT

2

16

 

VRS Oil solenoid for old retrofit applications

 

OUTPUT

3

17

 

Comp Motor Starter Auxiliary Contact

 

INPUT

3

18

 

High Level Shutdown

 

INPUT

3

19

 

Oil Level Float Switch #1

 

INPUT

3

20

 

Oil Level Float Switch #2

 

INPUT

3

21

 

Remot Setpoint #1/#2 Selection

 

INPUT

3

22

 

Remote Start/Stop

 

INPUT

3

23

 

Remote Capacity Increase

 

INPUT

3

24

 

Remote Capacity Decrease

 

INPUT

4

25

 

Condenser Step #1

 

OUTPUT

4

26

 

Condenser Step #2

 

OUTPUT

4

27

 

Condenser Step #3

 

OUTPUT

4

28

 

Condenser Step #4

 

OUTPUT

4

29

 

Auxiliary Input #1

 

INPUT

4

30

 

Auxiliary Input #2

 

INPUT

4

31

 

Auxiliary Input #3

 

INPUT

4

32

 

Auxiliary Input #4

 

INPUT

5

33

 

Auxiliary Output #1

 

OUTPUT

5

34

 

Auxiliary Output #2

 

OUTPUT

5

35

 

Auxiliary Output #3

 

OUTPUT

5

36

 

Auxiliary Output #4

 

OUTPUT

5

37

 

Auxiliary Input #5

 

INPUT

5

38

 

Auxiliary Input #6

 

INPUT

5

39

 

Auxiliary Input #7

 

INPUT

5

40

 

Auxiliary Input #8

 

INPUT

 

 

 

 

 

 

COMPRESSOR START OUTPUT – When the Vission 20/20 signals the compressor to start, this output is energized. When the Vission 20/20 signals the compressor to stop, this output is de-energized.

OIL PUMP START OUTPUT - When the Vission 20/20 signals the oil pump to start, this output is energized. When the Vission 20/20 signals the oil pump to stop, this output is de-energized.

18

Image 18
Contents Control Panel Page Important Note Page Touch Screen LCD Display Optional Analog Input Jumper Tables Standard Vilter Warranty Page Operational Flow Charts Page Proper Wire Sizing Voltage SourceVoltage Source Grounding Mixing Voltages Wiring Methods DON’T Touch Screen Description Type Liquid Injection #2 Output Not Defined Page Analog Inputs Page Compressor VFD 20 mA Condenser VFD Slide Valve Position Touch Screen LCD Display Main ScreenMenu Button Indicators LOG on ButtonMenu Screen Page Compressor Control Time Proportioning Control Auto-Cycle Setpoints Other Setpoints That Might be Required for Motor PID Control Pump-down Pull-down Misc. Control Page Page Alarms and Trips Screen Page Alarms and Trips Page Timers Page Timers Service Options Instrument Calibration Slide Calibration Remove Cover Press Down On Photochopper Command Shaft Rotation Capacity Volume INC DEC CCW Slide Valve Operation Slide Valve Trouble Shooting Guide Problem Reason SolutionProblem Replace the actuator. See above Trend Chart Event List Screen Input / Output States Configuration Screens Page Page Maintenance Screen Log In Screen Screen to Add Users User Level Suction Pressure SP#1 Fail Percent Volume FailLow Control Temperature Fail Suction Pressure SP#2 FailLow Oil Pressure Fail Auxiliary Safety#1 Input FailLow Start Oil Pressure Fail Low Oil Injection Temp FailVission 20/20 Troubleshooting Guide Dipswitches Digital & Analog BoardsDipswitch Position Digital Output #2 Digital Input Digital Input/Output #1 Digital Input/Output #2 POSITION-1 JP-16 JP-19 JP-22 JP-27 JP-28 JP-29 JP-30 JP-31 POSITION-2 Jumper Position Analog Output Optional Analog Input Jumper Tables Channel #6 Signal Page EmersonClimate.com