Graco 332564B important safety instructions Purging, Flush Mixed Material

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Operation Using Automatic Display Module (ADM)

Purging

To purge one color and ﬁll with a new color, see Color Change, page 87.

Flush Mixed Material

There are times when you only want to purge the remote mix manifold and the spray device, such as:

•end of potlife

•breaks in spraying that exceed the potlife

•overnight shutdown or end of shift

•before servicing the remote mix manifold, hose or gun.

1.Command the system to Standby.

2.If you are using a high pressure spray device or an electrostatic gun, shut off the atomizing air.

To reduce risk of ﬁre and explosion, if using an electrostatic gun, shut off the electrostatics before ﬂushing the gun.

3.Trigger the spray device to relieve pressure.

4.Set the solvent supply pressure regulator at the lowest pressure possible. Generally a setting of 25–50 psi (0.18–0.35 MPa, 1.8–3.5 bar) is sufﬁcient.

5.Command the system to Purge A or Purge B. Trigger the spray device into a grounded metal pail until the purge sequence is complete. When done purging, the system automatically switches to Standby mode, signalling the spray device to stop spraying.

6.If the system is not completely clean, repeat Step 5.

NOTE: For optimal efﬁciency, adjust purge sequence times so only one cycle is required.

7.Trigger spray device to relieve pressure.

8.Adjust the solvent supply regulator back to its normal operating pressure.

NOTE: The remote mix manifold and gun remain full of solvent after purging.

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332564B

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Contents Important Safety Instructions ProMix PD2K Proportioner for Automatic Spray ApplicationsContents Manual No Description Related ManualsManual No ECB Labels Models0359 Model AC2000 High Pressure Identiﬁcation Label Fire and Explosion Hazard Intrinsic Safety Personal Protective Equipment Keep Components a and B Separate Important Isocyanate ISO InformationIsocyanate Conditions Moisture Sensitivity of IsocyanatesGeneral Information Advanced Display Module ADM USB Download ProcedureADM Display USB Upload Procedure ADM Keys and Indicators ADM Keys and Indicators FunctionSoft Key Functions Soft Key IconsKey Function Key Function Navigating the Screens Screen IconsPower On Pre-operation ChecklistPre-Operation Tasks Flush Before Using Equipment Initial System SetupValve Settings Without Color Change With Color ChangeOperation Using Automatic Display Module ADM Prime and Fill the SystemSpraying Purging Flush Mixed MaterialSingle Color System ShutdownFlush the System Color Change SystemDiscrete I/O Operation Using a Programmable Logic Controller PLCNetwork Communications and Discrete I/O PD2K Discrete I/O ConnectionsDigital Inputs Analog InputsDiscrete I/O Connections on Efcm KEYCGM Overview Communication Gateway Module CGM DetailsCGM Kits Network Communication I/O Data Map Output Register 00 Current System ModeNumber Operation Mode Description ProMix PD2K Network OutputsOutput Register 05 Actual Mix Flow Output Registers 01, 02, 03, and 04 Pump StatusPump States for Output Registers Description Ber Output Register 06 Actual Mix RatioOutput Registers 28 36 DCS Command Structure Output Register 14 Active Recipe Potlife Timeout Set PointOutput Register 27 Safety Interlock Input Status Output Register 12 Active Recipe Material B Flush SequenceOutput Register 37 Time Output Register 38 40 Software VersionOperation Using a Programmable Logic Controller PLC Network Output Data Map Read Only NonePSI = NAK = Busy= ACK = ERRInput Register 00 System Mode Command ProMix PD2K Network InputsInput Register 03 Mix Pump 1 Control Set Point Input Register 02 Flush/Prime Pump CommandInput Register 07 Go to Recipe Number Input Register 09 Job Complete Input Register 08 Clear Active AlarmInput Registers 14 21 DCS Command Structure Input Register 10 Gun 1 TriggerOperation Using a Programmable Logic Controller PLC Network Input Data Map Write/Read 40180 Gun 3 Trigger Uint32 Operation Flow Charts Purge Mode SequenceFlush Pump Command Inactive Pump Flush and Prime SequencesColor Change Sequence ChangeMixing Sequence Standby Mix Ready? noAlarm Clearing Sequence Clear Active AlarmNetwork Communication Dynamic Command Structure DCS Dynamic Command DescriptionWrite User ID List of DCS CommandsDynamic Commands with Command ID DCSWrite Recipe Write Flush Sequence Write Fluid Control Mode Read User IDRead Recipe Read Flush SequenceRead Fluid Control Mode Read Job Info YymmddYymmdddw Read Alarm InfoExample Ascii Character String Decode Algorithm Read Event Info Flow Control System Opening Screen Run Mode ScreensHome Screen Home Screen Key Description Details See Advanced Screen 1, page 82, to setKey Description Key Description Spray Screen, in Standby Mode Spray ScreenFill Screen Fill Screen, Color a SelectedUsage Screen Usage ScreenJobs Screen Errors ScreenEvents Screen Setup Mode Screens Password ScreenSystem Screen Low Flow Timeout Mix Idle TimeoutMix No Flow Timeout Mix Pressure ToleranceMix At Wall Gun Hose LengthGun Hose Diameter Hose Length and DiameterEnable Gateway IDFluid Control Gun Trigger SignalFlow Control Setpoint Signal Manual OverrideRecipe Screen Flush Screen Pump Screen Default Settings Selected Default Settings Not SelectedPressure Alarm and Deviation Limits Pump Screen 3, Pressure Monitoring DisabledCalibration Screens Calibrate ScreenVolume Check Screen Enter Measured Volume of Solvent Maintenance Screens Maintenance ScreenMaintenance Screen 4, Color Valve Resets Advanced Screen Display Units Enable USB Downloads/UploadsLog 90% Full Advisory Enabled Download DepthPump Pressure Check Calibration ChecksPerform the pressure check Pump Volume Check Solvent Meter Calibration Scroll to Calibrate Screen 3,Single Color Systems Color ChangeMultiple Color Systems To Clear Error and Restart System ErrorsGun Trigger Input Function Purge Errors Code Type Description Problem Cause Solution Error CodesMix Errors Code Type Description Problem Cause Solution Pumping Errors Code Type Description Problem Cause Solution Code Type Description Problem Cause Solution EBH#SAD1 Pressure Errors Code Type Description Problem Cause Solution Qadx QbdxCA0X System Errors Code Type Description Problem Cause SolutionEmix CAC#CDC# CagxCddx USB Errors Code Type Description Problem Cause Solution USB WxudWxuu B9BX B9AXB9SX ENS0 Calibration Errors Code Type Name DescriptionEND# ENT#Maintenance Errors Code Type Name DescriptionCleaning the ADM MaintenancePreventive Maintenance Schedule FlushingTechnical Data Positive Displacement Metric ProportionerGraco Information Graco Standard WarrantyFor Graco Canada Customers