Emerson Vilter Vission 20/20, Operation And Service Manual

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6 – 15
Section 6 • Compressor Control
Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7
Figure 6-15. Compressor Control Screen - Stop Load, Force Unload and Slide Valve Control
Capacity Slide Triggered Outputs
The Vission 20/20 offers two digital outputs that can be
triggered at a specified capacity slide position. By de -
fault, the outputs are preselected for the economizer
and the hot gas bypass. However, these preselected out-
puts are customizable by the operator, see Figure 6-15.
Slide Valve Setpoint:
• Operator editable labels for the each output. Only
the Economizer Port 2 label is non-editable.
Slide %:
• Indicates the capacity slide position where the digital
output is triggered.
State Below Setpoint:
•
Defines the state of the digital output when the slide
position is below the “Slide %” setpoint. The operator
can choose between “N.O.” or “N.C.”. This setpoint
is not available for the Economizer Port 2, so the
Economizer Port 2 follows the setpoint of Economizer
Port 1.
Active:
• Check box to enable the digital output. There is no
check box to enable the Economizer Port 2 digital
output. The economizer Port 2 digital output is en-
abled when the compressor type selected from the
configuration screen is “VSM7” and the Economizer
Port 1 digital output is enabled.