Emerson VSG & VSSG Specifications download pdf (Page 83)

7 – 1

Section 7 • Compressor Control Setpoints

Single Screw Compressor PLC Operation Manual • Vilter/Emerson • 35391CM

Setpoints and Control Screens

The setpoint and control screens relate to the operation

and control of the compressor. Process and operational

setpoints for the compressor and other equipment are

adjustable within this group of screens.

CHANGING SETPOINTS

To change setpoints within the setpoint and control

screens, the user must be logged in. Setpoints that may

be adjusted by the logged in user appear as a white

button that shows the current value of the setpoint.

Setpoints that may not be adjusted by the logged in user

(or if no user is logged in) appear as text only and cannot

be changed.

Figure 7-1. Numeric Entry Pop-up Screen

Pressing on a numeric entry opens the numeric entry

pop-up screen, see Figure 7-1.

• In Figure 7-1, the Suction Pressure Control screen,

the current value of the setpoint is highlighted by a

green box.

• In Figure 7-1, the numeric entry pop-up screen, the

range of values above the numerical buttons is the

acceptable range that can be entered. If a value out-

side this range is entered the HMI will not accept it.

• To enter a new setpoint, use the numerical keypad

and enter key.

• To close the numerical input pop-up screen without

changing the setpoint, push the “ESC” key.

Current Setpoint Value

Acceptable Range

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 161 162

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Emerson VSG & VSSG Specifications Page 83