Service manual

TOC - 2
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.9
Section 4 • Main Screen
Overview ...............................................................................................................................................4-1
Figure 4-1. Main Screen..........................................................................................................................4-1
Top Status Bar ........................................................................................................................................4-2
Figure 4-2. Top Status Bar ......................................................................................................................4-2
Parameter Bar ........................................................................................................................................4-3
Figure 4-3. Parameter Bar ......................................................................................................................4-3
Figure 4-4. Unit Start Pop-Up Window ...................................................................................................4-4
Bottom Status Bar ..................................................................................................................................4-5
Figure 4-5. Bottom Status Bar ................................................................................................................4-5
Splash Screen .........................................................................................................................................4-6
Figure 4-6. Splash Screen .......................................................................................................................4-6
Section 5 • Menu Screen
Overview ...............................................................................................................................................5-1
Navigation Buttons ................................................................................................................................5-1
Figure 5-1. Menu Screen ........................................................................................................................5-1
Figure 5-2. Menu Screen with Remote Oil Cooler Enabled.......................................................................5-2
Section 6 • Compressor Control
Overview ...............................................................................................................................................6-1
Suction Pressure Control and Process Temperature Control ...................................................................6-1
Figure 6-1. Compressor Control Screen - Suction Pressure Control .........................................................6-1
Auto-Cycle .............................................................................................................................................6-2
Figure 6-2. Compressor Control Screen - Process Temperature Control ..................................................6-2
Figure 6-3. Proportional Band & Setpoint ...............................................................................................6-3
Variable Frequency Drive (VFD) ..............................................................................................................6-4
Figure 6-4. Compressor Control Screen - VFD Settings Control ............................................................... 6-4
Figure 6-5. VFD One-Step Control Method ............................................................................................. 6-5
Figure 6-6. VFD Two-Step Control Method .............................................................................................6-5
Pumpdown Control................................................................................................................................6-6
Figure 6-7. Compressor Control Screen - Pumpdown/Pulldown Control ................................................ 6-6
Pulldown Control ...................................................................................................................................6-7
Control Mode......................................................................................................................................... 6-8
Figure 6-8. Compressor Control Screen - Misc. 1 (Control Mode) ............................................................ 6-8
Stop load & Force unload .......................................................................................................................6-8
Figure 6-9. Compressor Control Screen - Misc. 2 (Economizer & Hot Gas Bypass Control) .......................6-9
Capacity Slide Triggered Outputs ...........................................................................................................6-9
Volume Slide Position Offset ..................................................................................................................6-10
Soft Load ...............................................................................................................................................6-10
Load Anticipating ...................................................................................................................................6-10
Oil Control .............................................................................................................................................6-11
Figure 6-10. Compressor Control Screen - Oil Control & Liquid Injection Control .................................... 6-11
Liquid Injection ......................................................................................................................................6-11
Section 7 • Alarms and Trips
Overview ...............................................................................................................................................7-1
Alarms and Trips Setpoints .....................................................................................................................7-1
Figure 7-1. Alarms and Trips Screen - Page 1 ...........................................................................................7-1
Figure 7-2. Alarms and Trips Screen - Page 1 as Level 2 User ....................................................................7-2
Figure 7-2. Alarms and Trips Screen - Page 2 ...........................................................................................7-3
Figure 7-2. Alarms and Trips Screen - Page 3 ..........................................................................................7-4
Compressor Inhibits ...............................................................................................................................7-5
Safety Failure Messages .........................................................................................................................7-5
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