Section 12 • Service Options
of the volume actuator. The output is connected to terminal 15 and is the 5th LED down on card 1.
Volume Decrease Motor:
•Activates the output assigned to the decrease input of the volume actuator. The output is connected to terminal 16 and is the 6th LED down on card 1.
Oil Separator Heater
•Activates the output assigned to the oil separator heater. The output is connected to terminal 17 and is the 7th LED down on card 1.
Trip:
•Deactivates the output during a trip or inhibit con- dition. This is a reverse acting output. The output is connected to terminal 18 and is the bottom LED on card 1.
Slide Valve Setpoint # 1 (Economizer):
•Activates the output typically assigned to the econo- mizer solenoid, but can be changed by the operator. The output is connected to terminal 21 and is the 1st LED on card 2.
Slide Valve Setpoint # 2 (Hot Gas Bypass):
•Activates the output typically assigned to the hot gas bypass solenoid, but can be changed by the operator. The output is connected to terminal 22 and is the 2nd LED on card 2.
Alarm:
•Activates the output during an alarm condition. This is a reverse acting output. The output is connected to terminal 23 and is the 3rd LED on card 2.
Liquid Injection # 1:
•Activates the output assigned to the liquid injection solenoid. The output is connected on terminal 25 and is the 5th LED on card 2.
Liquid Injection # 2:
•Not currently enabled Remote Enabled:
•Activates the output assigned to notify a central con- trol system of the Vission 20/20 run status. The out- put is connected to terminal 27 and is the 7th LED on card 2.
Shunt Trip:
•Activates the output during a false start condition and the emergency stop timer has expired. This out- put could be wired the a breaker with a shunt trip that feeds power to a starter to force a shutdown. The output is connected to terminal 28 and is the 8th LED on card 2.
Condenser Step # 1:
•Activates the output assigned to the 1st step of the condenser. The output is connected to terminal 41 and is the 1st LED on card 4.
Condenser Step # 2:
•Activates the output assigned to the 2nd step of the condenser. The output is connected to terminal 42 and is the 2nd LED on card 4.
Condenser Step # 3:
•Activates the output assigned to the 3rd step of the condenser. The output is connected to terminal 43 and is the 3rd LED on card 4.
Condenser Step # 4:
•Activates the output assigned to the 4th step of the condenser. The output is connected to terminal 44 and is the 4th LED on card 4.
Analog Outputs
The Analog Output (AO) selections allow the operator to enter a desired value of the output then turn on the out- put. The operator will have to measure the output using meter capable of measuring a
Compressor VFD:
•Sets the analog output assigned to the compressor VFD. The output is connected to AO #1 on card 10.
Condenser VFD:
•Sets the analog output assigned to the condenser VFD. The output is connected to AO #2 on card 10.
% Slide Valve Position
•Sets the analog output assigned to the Slide Value position used to inform a central control system of the capacity position. The output is connected to AO #3 on card 10.
Liquid injection Motorized Valve:
•Sets the analog output assigned to the liquid injec- tion motorized value position. The output is connect- ed to AO #4 on card 10.
12 – 2 | Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.8.5153 |
