Figure 12-2. Service Options Screen - Digital Outputs (Page 2) - Emerson Vilter Vission 20/20 Operation And Service Manual

Section 12 • Service Options
Volume Increase Motor:
• Activates the output assigned to the increase input
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.

Figure 12-2. Service Options Screen - Digital Outputs (Page 2)

12 – 2
Use Figure 12-2. Service Options Screen - Digital Outputs
(Page 2)
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.
Economizer Port # 2 :
• Activates the output typically assigned to the econo-
mizer solenoid. The output is connected to terminal
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.9