Graco A-25 important safety instructions E02 High zone current, E03 No zone current

Page 11

Important Two-Component Material Information

d.If the swapped module does not fix the problem, the power module is not the cause.

8.Verify continuity of heater elements with an ohmme- ter, see page 28.

E02: High zone current

1. Turn main power OFF

.

2. Relieve pressure, page 13.

NOTE: Disconnect whip hose.

3.Disconnect hose connector (D) at Reactor.

4.Using an ohmmeter, check between the two termi- nals of the connector (D). There should be no conti- nuity.

5.Exchange zone module with another one. Turn zone on and check for error (see page 27). If error disap- pears, replace faulty module.

For hose zone: If error still occurs, perform Transformer Primary Check and Transformer Secondary Check, starting on page 33.

NOTE: When there is a high current error, the LED on that zone’s module will turn red while the error is dis- played.

E03: No zone current

1.Check for tripped circuit breaker inside electrical cabinet or at power source for that zone. Replace circuit breaker if it trips habitually.

2.Check for loose or broken connection at that zone.

3.Exchange zone module with another one. Turn zone on and check for error (see page 27). If error disap- pears, replace faulty module.

4.If E03 occurs for all zones, the 238CR contactor may not be closing. Verify wiring from heater control to contactor coil.

a. Hose zone: test hose continuity, page 31.

b.Perform Transformer Primary Check and Transformer Secondary Check, starting on page 33.

NOTE: When a no current error occurs, the LED on this specific zone’s module turns red when the error is dis- played.

E04: Fluid Temperature Sensor (FTS) or thermocouple disconnected

1.Check temperature sensor connections to long green connector (B) on temperature control module, page 26. Unplug and re-plug sensor wires.

2.Test fluid temperature sensor continuity with ohm- meter, page 10.

3.If an error occurred for the hose zone, check FTS connections at each section of hose.

4.If an error occurred for the hose zone, test FTS by plugging directly into machine.

F

D

ti17788a

5.To verify heater control module is not causing the problem, use a wire to short-circuit the two pins cor- responding to the FTS (red and yellow for A or B zone, red and purple for hose). The display will show the control heater module temperature.

6.If an error occurred for the hose zone, temporarily use the current control mode. Refer to Reactor Operation manual.

3A1570A

11

Page 10 Page 12
Image 11
Page 10 Page 12
Contents Repair-Parts Important Safety InstructionsContents Manual Description Proportioner ModelsSystems Related ManualsElectric Shock Hazard Fire and Explosion Hazard Equipment Misuse Hazard Important Two-Component Material Information Changing Materials Symbol Code Code Name Diagnosis Cause DataTrak Diagnostic CodesTemperature Control Diagnostic Codes Checks E01 High fluid temperatureCauses of E01 Errors Sensor Connector Continuity Checks Pins Description ReadingE03 No zone current E02 High zone currentE99 Loss of communication E05 Control board over temperatureE06 Communication cable unplugged Before Beginning Repair Pressure Relief ProcedureShutdownOpen Close ParkFlushingPumps and Pressures TroubleshootingProblems PowerProblem Cause Solution Electronics Problem Cause SolutionProblem Cause Solution Sor FTS or thermocouple discon See E04 Fluid Temperature SenHeater Hose Heat System Problem Cause Solution Disconnect Pump Follow Pressure Relief Procedure,Repair Connect Pump Remove Air Motor Install Air MotorAir Filter Element Removal Air Filter Element InstallationRecirculation / Over Pressure Relief Block Air Inlet Filter / Water Separator Auto DrainBottom of Power Modules Temperature Control ModuleTemperature Control Module Connections Connector DescriptionTest SCR Circuit Replacing Temperature Control Assembly ModulesLine Voltage Primary HeaterHeater Element KW Dual Zone Heater Thermocouple ThermocoupleHeated Hose Overtemperature SwitchCheck Hose Connectors Pins ResultTest/Removal Fluid Temperature Sensor FTSInstallation Model Secondary Voltage Transformer Primary CheckTransformer Secondary Check Replace Transformer Size Component Replace Circuit Breaker ModulePump Lubrication System Pump Lubrication SystemFluid Inlet Strainer Screen Temperature DisplayRefer to Reactor A-25 Wiring Schematic, Display Module Detail of Membrane Switches and Temperature Display BoardReplace Fuse Replace DataTrak Battery or FuseReplace Battery Recommended Spare Parts Accessories7984 100 888 PartsTorque pump locking nuts to 66-74 ft-lbs 90-100 Nm Cart Part Description QtyNipple Screw Control PanelRef. Part Description Qty Temperature ControlWheel Kit Fluid Inlet Kit Fluid ManifoldRing Kw Dual Zone Heater, 24J788PLUG, Pipe Air Motor Pump AssemblyColor Diameter Air Tubing ConnectionsLength Connection Outside Ft m From Breaker Module Phase Reactor A-25 Wiring SchematicPOD Reactor A-25 Wiring Schematic Simplified Schematic, Heater Controls Category Data Technical DataGraco Information Graco Standard Warranty
Related manuals
Manual 38 pages 32.05 Kb
Top Page Image Contents