YP7999A1000 CONTROLINKS™ FUEL AIR RATIO CONTROL PANEL3 66-2060—01TROUBLESHOOTINGSystem DiagnosticsThe S7999D touchscreen interface indicates the current fault and keeps a fault history log. The R7999 ControLinks control andthe ML7999A Universal Parallel-Positioning Actuator also have LED fault blink codes. Refer to the appropriate product instructionsheet for further troubleshooting information and diagnostic codes.FIELD WIRINGTable 1. Field Wiring and Terminal Designation1 .Terminal #To ConnectingDevice Description12 L1 Panel power 120Vac Power Supply, 3A Max.L1 power to circuit breaker.Provide disconnect means and overload protection as required.2 L2 Panel neutralGND Panel ground43 L1 L1 customer convenience wire point – provided for 4 actuators – 120Vac, 50/60Hz23 L2 L2 customer convenience wire point – provided for 4 actuatorsGND3 Panel ground GND customer convenience wire point – provided for 4 actuators9 HFP High Fire Proven output from ControLinks controller to burner control10 LFP Low Fire Proven output from ControLinks controller to burner control11 HF High Fire drive command input from burner controller12 MV Main Valve command input from burner controller13 LF Low Fire drive command input from burner controller14 LCI Limit Control Input from burner limit string, including on/off control, LWCO, high-limit, etc…15 LCO Limit Control Output from ControLinks controller to burner control demand/interlock inputs2003,4 DR1 Air Actuator DR1 command input2013,4 DR2 Air Actuator DR2 command input2023,4 CW Air Actuator potentiometer CW output2033,4 S Air Actuator potentiometer S output2043,4 CCW Air Actuator potentiometer CCW outputGND3,4 Ground Air Actuator ground2053,4 DR1 Fuel 1 Actuator DR1 command input2063,4 DR2 Fuel 1 Actuator DR2 command input2073,4 CW Fuel 1 Actuator potentiometer CW output2083,4 S Fuel 1 Actuator potentiometer S output2093,4 CCW Fuel 1 Actuator potentiometer CCW outputGND3,4 Ground Fuel 1 Actuator ground2103,4 DR1 Fuel 2 Actuator DR1 command input2113,4 DR2 Fuel 2 Actuator DR2 command input2123,4 CW Fuel 2 Actuator potentiometer CW output2133,4 S Fuel 2 Actuator potentiometer S output2143,4 CCW Fuel 2 Actuator potentiometer CCW outputGND3,4 Ground Fuel 2 Actuator ground