Digital Inputs, Analog Inputs | Graco 332564B manual

Operation Using a Programmable Logic Controller (PLC)

Digital Inputs

•Safety Interlock: This normally open contact works like a soft emergency stop button. If the ProMix PD2K reads the input as CLOSED it interrupts system operation and removes power from the pumps regardless of the current operating mode. If the input is read as OPEN, the system operates normally

NOTE: This digital input is always enabled.

Do not toggle this input to put the system into Standby mode.

•Gun Trigger: This normally open (maintained) contact provides a signal to the system to indicate whether or not a spray device is triggered. This input provides timing for alarm functions and also drives the ﬂow control algorithm. If the input is OPEN the system operates as though the spray device is off. The input must be maintained CLOSED to signal that the spray device is triggered.

NOTE: The Gun Trigger discrete input must be enabled via Conﬁgure Screen 5 on the ADM. If it is set to ‘Network’ the discrete input is ignored and the spray device trigger signal is handled via the network communications.

If enabled, it is imperative that this signal be sent any time the spray device is triggered. Without the signal, the ﬂow control features will not work.

Analog Inputs

Flow Control Set Point: When enabled, this 4-20mA signal input is used to set and adjust the operating ﬂow control set point. The ProMix PD2K scales the set point linearly from 0 to the Max Set Point setting (see System Screen 5, page 71). Examples,

•In Flow Control Mode: If the Max Set Point is 500 cc/min, a 4mA signal is 0 cc/min and a 20mA signal is 500 cc/min.

•In Pressure Control Mode: If the Max Set Point is 500 psi, a 4mA signal is 0 psi and a 20mA signal is 500 psi.

NOTE: The Flow Control discrete input must be enabled via Conﬁgure Screen 5 on the ADM. If set to ‘Network’ the discrete input is ignored and set point adjustment is handled via the network communications.

4–20 mA Flow Control Set Point Input

PD2K Discrete Input

PLC (4–20 MA Signal)

Figure 10

O = Output

R = Return

332564B

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Image 25

Graco 332564B important safety instructions Digital Inputs, Analog Inputs

Contents

ProMix PD2K Proportioner for Automatic Spray Applications Important Safety Instructions Contents Manual No Description Related ManualsManual No ECB Labels Models0359 Model AC2000 High Pressure Identiﬁcation Label Fire and Explosion Hazard Intrinsic Safety Personal Protective Equipment Isocyanate Conditions Important Isocyanate ISO InformationKeep Components a and B Separate Moisture Sensitivity of Isocyanates General Information Advanced Display Module ADM USB Download ProcedureADM Display USB Upload Procedure ADM Keys and Indicators Function ADM Keys and Indicators Soft Key Functions Soft Key IconsKey Function Key Function Screen Icons Navigating the Screens Power On Pre-operation ChecklistPre-Operation Tasks Flush Before Using Equipment Initial System SetupValve Settings With Color Change Without Color Change Prime and Fill the System Operation Using Automatic Display Module ADM Spraying Flush Mixed Material Purging Flush the System ShutdownSingle Color System Color Change System Network Communications and Discrete I/O Operation Using a Programmable Logic Controller PLCDiscrete I/O PD2K Discrete I/O Connections Analog Inputs Digital Inputs KEY Discrete I/O Connections on Efcm CGM Overview Communication Gateway Module CGM DetailsCGM Kits Number Operation Mode Description Output Register 00 Current System ModeNetwork Communication I/O Data Map ProMix PD2K Network Outputs Pump States for Output Registers Description Ber Output Registers 01, 02, 03, and 04 Pump StatusOutput Register 05 Actual Mix Flow Output Register 06 Actual Mix Ratio Output Register 27 Safety Interlock Input Status Output Register 14 Active Recipe Potlife Timeout Set PointOutput Registers 28 36 DCS Command Structure Output Register 12 Active Recipe Material B Flush Sequence Output Register 38 40 Software Version Output Register 37 Time Operation Using a Programmable Logic Controller PLC None Network Output Data Map Read Only PSI = ACK = Busy= NAK = ERR ProMix PD2K Network Inputs Input Register 00 System Mode Command Input Register 03 Mix Pump 1 Control Set Point Input Register 02 Flush/Prime Pump CommandInput Register 07 Go to Recipe Number Input Registers 14 21 DCS Command Structure Input Register 08 Clear Active AlarmInput Register 09 Job Complete Input Register 10 Gun 1 Trigger Operation Using a Programmable Logic Controller PLC Network Input Data Map Write/Read 40180 Gun 3 Trigger Uint32 Purge Mode Sequence Operation Flow Charts Inactive Pump Flush and Prime Sequences Flush Pump Command Change Color Change Sequence Standby Mix Ready? no Mixing Sequence Clear Active Alarm Alarm Clearing Sequence Dynamic Command Description Network Communication Dynamic Command Structure DCS Dynamic Commands with Command ID List of DCS CommandsWrite User ID DCS Write Recipe Write Flush Sequence Read User ID Write Fluid Control Mode Read Flush Sequence Read Recipe Read Fluid Control Mode Yymmdd Read Job Info Yymmdddw Read Alarm InfoExample Ascii Character String Decode Algorithm Read Event Info Flow Control System Opening Screen Run Mode ScreensHome Screen See Advanced Screen 1, page 82, to set Home Screen Key Description Details Key Description Key Description Spray Screen Spray Screen, in Standby Mode Fill Screen, Color a Selected Fill Screen Usage Screen Usage Screen Jobs Screen Errors ScreenEvents Screen Password Screen Setup Mode Screens System Screen Mix No Flow Timeout Mix Idle TimeoutLow Flow Timeout Mix Pressure Tolerance Gun Hose Diameter Gun Hose LengthMix At Wall Hose Length and Diameter Gateway ID Enable Flow Control Setpoint Signal Gun Trigger SignalFluid Control Manual Override Recipe Screen Flush Screen Pump Screen Default Settings Not Selected Default Settings Selected Pump Screen 3, Pressure Monitoring Disabled Pressure Alarm and Deviation Limits Calibrate Screen Calibration Screens Volume Check Screen Enter Measured Volume of Solvent Maintenance Screen Maintenance Screens Maintenance Screen 4, Color Valve Resets Advanced Screen Log 90% Full Advisory Enabled Enable USB Downloads/UploadsDisplay Units Download Depth Pump Pressure Check Calibration ChecksPerform the pressure check Pump Volume Check Scroll to Calibrate Screen 3, Solvent Meter Calibration 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 EBH# Code Type Description Problem Cause Solution SAD1 Pressure Errors Code Type Description Problem Cause Solution Qbdx Qadx Emix System Errors Code Type Description Problem Cause SolutionCA0X CAC# CDC# CagxCddx USB Errors Code Type Description Problem Cause Solution USB WxudWxuu B9BX B9AXB9SX END# Calibration Errors Code Type Name DescriptionENS0 ENT# Code Type Name Description Maintenance Errors Preventive Maintenance Schedule MaintenanceCleaning the ADM Flushing Positive Displacement Metric Proportioner Technical Data Graco Information Graco Standard WarrantyFor Graco Canada Customers