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APPENDIX B
Analog and Discrete I/O
The Analog and Discrete I/O section identifies the channel assignments for sensor
inputs, control outputs, and status inputs for various compressor models.
Analog Inputs
RECIP Compressor-Analog Inputs
TYPE
CHANNEL
NAME
RANGE UNITS SENSOR TYPE
Press
1
Suction Press
0: 200
INGH
4-20 mA
Press
2
Discharge Press
0: 500
PSIG
4-20 mA
Press
3
Oil Press
0: 500
INGH
4-20 mA
Well Temp
4
Discharge Temp
32: 392 DEGF
4-20 mA
Well Temp
5
Oil Temp
32: 392 DEGF
4-20 mA
Well Temp
6
Suction Temp
-58: 122 DEGF
4-20 mA
Press
7
Intermediate Press(Two Stage)
0: 500
PSIG
4-20 mA
Spare(One Stage)-DP2
Well Temp
8
Process Temp or DT2
-58: 122 DEGF
4-20 mA
Discrete I/O RACK 1
TYPE
CHANNEL
NAME
OFF STATE
ON STATE NOTES
Output
1
Compressor Motor
Off
On
Output
2
Capacity Stage 1
Off
On
Output
3
Capacity Stage 2
Off
On
Output
4
Capacity Stage 3
Off
On
Output
5
Capacity Stage 4
Off
On
Output
6
Spare
Off
On
Output
7
Spare
Off
On
Output
8
Alarm/Failure
Norm
Alarm
Input
9
Motor AUX
Open
Closed
1
Input
10
AUX Shutdown
Alarm
Norm
3
Input
11
Safety Circuit
Alarm
Norm
3
Output
13
Crank Case Heater
Off
On
Input
12
Remote Start/Stop
Open
Closed
Output
14
Oil Return Solenoid
Closed
Open
Output
15
Cooling Control
Closed
Open
Output
16
Spare
Closed
Open
Notes:
1-Normally open contact with no power or level
5-De-energize for condition
2-Normally closed contact with no power or level
6-Pilot driven-Energize to close
3-Normally closed contact open to fail
7-De-energize to turn via customer supplied relay
4-Energize for condition
Summary of Contents for Vilter VilTech
Page 1: ...VILTech micro controller Operation and service manual ...
Page 2: ...2 ...
Page 10: ...10 Notes Page ...
Page 11: ...11 ...
Page 16: ...16 ...
Page 18: ...18 ...
Page 29: ...29 ...
Page 38: ...38 ...
Page 53: ...53 ...
Page 88: ...88 ...
Page 138: ...138 ...
Page 142: ...142 ...
Page 145: ...145 ...
Page 147: ...147 ...
Page 153: ...153 ...
Page 154: ...154 Alarm and Failure Data ...
Page 155: ...155 Alarm and Failure Data Continued ...
Page 156: ...156 Alarm and Failure Data Continued ...
Page 158: ...158 Compressor State Table ...
Page 159: ...159 Last RECIPStart Status Table ...
Page 172: ...172 ...
Page 173: ......