Emerson VISSION 20/20 service manual Grounding

Page 13

Grounding

•Continuous grounds must be run from the power company ground to the Vission 20/20.

•Grounds must be copper or aluminum wire.

•Never use conduit grounds.

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Image 13

Contents Control Panel Page Important Note Page Touch Screen LCD Display Optional Analog Input Jumper Tables Standard Vilter Warranty Page Operational Flow Charts Page Voltage Source Proper Wire SizingVoltage Source Grounding Mixing Voltages Wiring Methods DON’T Touch Screen Description Type Liquid Injection #2 Output Not Defined Page Analog Inputs Page Compressor VFD 20 mA Condenser VFD Slide Valve Position Main Screen Touch Screen LCD DisplayMenu Button LOG on Button IndicatorsMenu Screen Page Compressor Control Time Proportioning Control Auto-Cycle Setpoints Other Setpoints That Might be Required for Motor PID Control Pump-down Pull-down Misc. Control Page Page Alarms and Trips Screen Page Alarms and Trips Page Timers Page Timers Service Options Instrument Calibration Slide Calibration Remove Cover Press Down On Photochopper Command Shaft Rotation Capacity Volume INC DEC CCW Slide Valve Operation Problem Reason Solution Slide Valve Trouble Shooting GuideProblem Replace the actuator. See above Trend Chart Event List Screen Input / Output States Configuration Screens Page Page Maintenance Screen Log In Screen Screen to Add Users User Level Low Control Temperature Fail Percent Volume FailSuction Pressure SP#1 Fail Suction Pressure SP#2 FailLow Start Oil Pressure Fail Auxiliary Safety#1 Input FailLow Oil Pressure Fail Low Oil Injection Temp FailVission 20/20 Troubleshooting Guide Digital & Analog Boards DipswitchesDipswitch Position Digital Output #2 Digital Input Digital Input/Output #1 Digital Input/Output #2 POSITION-1 JP-16 JP-19 JP-22 JP-27 JP-28 JP-29 JP-30 JP-31 POSITION-2 Jumper Position Analog Output Optional Analog Input Jumper Tables Channel #6 Signal Page EmersonClimate.com