Graco PrecisionFlo 918463 Instructions-Parts List Manual
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Graco PrecisionFlo 918463 Instructions-Parts List Manual

Graco PrecisionFlo 918463 Instructions-Parts List Manual

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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
PrecisionFlo Control Assembly
For use when dispensing fluids that meet at least one
of the following conditions for non-flammability:
The fluid has a flash point above 140 F (60 C) and
a maximum organic solvent concentration of 20%,
by weight, per ASTM Standard D93.
The fluid does not sustain burning when tested per
ASTM Standard D4206 Sustained Burn Test.
Control Assembly with Pendant
Part No. 918463
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
8646A
http://www.graco.com
COPYRIGHT 1996, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
310531
Supersedes B
First choice when
quality counts.
Control Assembly with Keypad
Part No. 918644
Rev. C

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  • Page 1 ASTM Standard D4206 Sustained Burn Test. Control Assembly with Pendant Control Assembly with Keypad Part No. 918463 8646A Part No. 918644 GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 http://www.graco.com COPYRIGHT 1996, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...

  • Page 2: Table Of Contents

    ......Graco Standard Warranty .....

  • Page 3: Warnings

    Warnings Warning Symbol Caution Symbol WARNING CAUTION This symbol alerts you to the possibility of serious This symbol alerts you to the possibility of damage to injury or death if you do not follow the instructions. or destruction of equipment if you do not follow the instructions.
  • Page 4 Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose Graco hoses to temperatures above 180 F (82 C) or below –40 F (–40 C). Do not use the hoses to pull the equipment.
  • Page 5 WARNING FIRE, EXPLOSION, AND ELECTRIC SHOCK HAZARD Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and result in fire or explosion and serious injury. Ground the equipment and the object being sprayed. The PrecisionFlo metering valve is grounded through proper connection of the two electrical cables.

  • Page 6: Precisionflo Module Overview

    PrecisionFlo Module Overview What This Manual Includes This manual provides detailed information on the Pre- cisionFlo control assembly and operation of the Preci- sionFlo module only. Specific information on metering valves or material conditioning systems, for example, is contained in other instruction forms supplied with each component, as part of the PrecisionFlo system.

  • Page 7: Precisionflo Module Capabilities

    PrecisionFlo Module Overview Fluid Metering Assembly The PrecisionFlo metering valve is electrically con- trolled by the PrecisionFlo module, and consistent ma- The fluid metering assembly (Fig. 2) can be attached terial flow is assured by a closed-loop pressure control to a robot’s arm, or mounted on a pedestal. Main design.

  • Page 8: Precisionflo Options

    PrecisionFlo Module Overview PrecisionFlo Options Flow Monitor: Allows precise control of material volumes and accumulation of accurate SPC data. Material Conditioning: Allows precise regulation of material temperature. Dispensing Accessories: A variety of hoses, cables, dispense devices, manifolds, and other components are available to meet the requirements of customer applications and material types.
  • Page 9 PrecisionFlo Module Overview Fig. 4 The following list describes the numbered components in the typical installation drawing. Description Control Assembly Metering Valve Dispense Gun Control Pendant Sealer Robot Flow Meter Robot Controller Robot Interface Cable Temperature Conditioning System Temperature Conditioning Hoses Fluid Supply System Fluid Supply Header Filter Module (not shown)

  • Page 10: Installation

    Some of the software settings are password protected. configuring the software for operation To obtain the password, contact your Graco service representative. Fig. 5 shows the tasks that make up each procedure. Configure software...

  • Page 11: Installing Control Assembly Hardware

    Fig. 7. available during installation. Be sure all accessories are adequately sized and pressure-rated to meet the system’s requirements. Use only the Graco PrecisionFlo control assembly with the PrecisionFlo metering valve. WARNING EQUIPMENT MISUSE HAZARD The PrecisionFlo control assembly...
  • Page 12 Installing Control Assembly Hardware 24” 25” (610 mm) (635 mm) 18” 19” (457 mm) (483 mm) 30” (762 mm) 30” (762 mm) 31.24” (794 mm) 31.24” (794 mm) Part No. 918644 Part No. 918463 8646A Fig. 6 Fig. 7 310531...

  • Page 13: Grounding Control Assembly 918463

    Current / Temperature Board using cables provided with the metering valve. Grounding Stud An 8 AWG, 25 foot long ground wire with clamp, part Main Electrical Switch no. 222011, is available from Graco. Master Control Relay I/O Board1 –– Service Control Board Assy .

  • Page 14: Grounding Control Assembly 918644

    Description provided with the metering valve. Current / Temperature Board An 8 AWG, 25 foot long ground wire with clamp, part Grounding Stud no. 222011, is available from Graco. Main Electrical Switch Master Control Relay I/O Board1 –– Service Control Board Assy .

  • Page 15: Verifying Ground Continuity

    Installing Control Assembly Hardware Verifying Ground Continuity To connect the control assembly to the electrical source: Verify ground continuity between: true earth ground and the panel ground lug 1. Create an opening in the enclosure. the application device and the robot the metering valve and the robot 2.

  • Page 16: Connecting Fluid Lines, Air Lines, And Cables

    Installing Control Assembly Hardware Connecting Fluid Lines, Air Lines, and 5. Connect the following cables from the PrecisionFlo metering valve (2) to the mating receptacles on the Cables control assembly (1). Follow these steps to assemble the PrecisionFlo a. Operations cable to the OP receptacle (6). module and incorporate it into a complete fluid dis- Then, connect the operations cable to the pensing system.
  • Page 17 Installing Control Assembly Hardware Compressed Air Inlet 3/8 NPT(f) Fluid Outlet 3/8 NPT(f) Operations Cable – OP Robot I/O Cable – I/O Robot Analog Cable – RAR Motor Cable – MP Sensor Cable – MS Flow Meter Cable – FM Fluid Supply Inlet 3/4 NPSM(f) 8805A...

  • Page 18: Loading Material Into Precisionflo Module

    Never exceed the maximum air or fluid working pressure rating of the lowest NOTE: Some of the software settings are password rated component in the system. Over- protected. To obtain the password, contact your Graco pressurization can cause component service representative. rupture and serious bodily injury.

  • Page 19: Configuring Pressure Sensors

    Loading Material into PrecisionFlo Module Configuring Pressure Sensors Before you set the scale factor, determine which type of sensor you have and what settings you have to This section describes how to set maximum and enter into the software. minimum limits for these pressure sensors: 1.
  • Page 20 Loading Material into PrecisionFlo Module Setting the Scale Factor for Pressure Sensors Setting the Outlet Pressure Limit (continued) Enter 3500 for the high pressure limit and 0 for the low 5. Enter the information: pressure limit. a. Key in the 4-digit maximum Vdc, (the Preci- 1.

  • Page 21: Entering Nominal Values For Kp And Kd

    Loading Material into PrecisionFlo Module Entering Nominal Values for Kp and Kd Calibrating PrecisionFlo Module in Pressure Mode The values you enter for Kp and Kd depend on the viscosity of the material and type of application in For more information about flow calibration, or for which you are using the PrecisionFlo module.

  • Page 22: Dispensing In Manual Mode

    Loading Material into PrecisionFlo Module Dispensing in Manual Mode 4. Press [F2] on the pendant to begin dispensing. For more information about manual dispense mode, Dispensing continues as long as you continue to see page 46. press [F2] and stops when you release the [F2] key.

  • Page 23: Configuring The Precisionflo Module

    Configuring the PrecisionFlo Module After you have loaded material into the dispensing NOTE: You have the option of using a dual channel system, configure the software for PrecisionFlo module storage oscilloscope to run tests for determining: operation. To configure the PrecisionFlo software, Kp and Kd parameters perform the following procedures.

  • Page 24: Adjusting The Kp And Kd To Ensure Accuracy And Repeatability Of Metering Valve Operation

    Configuring the PrecisionFlo Module You will be entering Kp and Kd values more than once Make sure that: while you are starting up the PrecisionFlo module. 1. Material has been loaded into the dispense sys- The first time you enter values is to simply load materi- tem.
  • Page 25 Configuring the PrecisionFlo Module Setting Up to Dispense Test Material c. At the prompt, key in 0, then press [ENTER]. You see: To set up for dispensing test material, perform the following tasks: ––WARNING!!!–– Material Will Be 1. Supply material pressure to the PrecisionFlo Dispensed, Press module.
  • Page 26 Configuring the PrecisionFlo Module Evaluating Beads In order to set Kp and Kd, dispense material and check it to see if the bead or outlet pressure is even and stable (Fig. 18). A properly adjusted bead has equal segments and a smooth appearance. An even bead segment 1 segment 2 segment 3...
  • Page 27 Configuring the PrecisionFlo Module Adjust Kp and Kd Values Visually Set Kp Dispense material Bead Bead even? maintains Kp < 5000? Kp + 100 stability Bead maintains Kp –100 stability Bead Fine maintains Kp + 20 Bead even? Kp – 20 Tuning stability Set Kd...
  • Page 28 Configuring the PrecisionFlo Module Adjust Kp and Kd Values Visually 4. Add 100 to Kd and rerun the test. If this does not stabilize bead performance, repeatedly increase Refer to the chart in Fig. 21 on page 27 for more Kd by 100 and retest until stability is achieved.
  • Page 29 Configuring the PrecisionFlo Module Adjust Kp and Kd Values Visually (continued) From Set Kd Adjust Bead unstable? Kd + 100 Kd –100 Kd +20 Bead unstable? Kd – 20 Done Fig. 22 Set Kd (Visually) 4. Decrease Kd to the last previous setting. Refer to the chart in Fig.
  • Page 30 Notes 310531...
  • Page 31 Configuring the PrecisionFlo Module Adjust Kp and Kd Values Using an Oscilloscope Start oscilloscope Dispense Set Kp material Outlet Outlet pressures Kp < 5000? pressure Kp + 100 equal? stable? Outlet pressure Kp –100 stable? Outlet Outlet pressures Fine Kp + 20 Kp –...

  • Page 32: Setting The Flow-Meter K-Factor

    Configuring the PrecisionFlo Module Adjust Kp and Kd Values Using an Oscilloscope 5. Add 100 to Kd and rerun the test. If this does not equalize the pressures, repeatedly increase Kd by Connecting The Oscilloscope 100 and retest until equality is achieved. Then If you are using an oscilloscope, follow this procedure return to step 4.

  • Page 33: Using The Control Pendant To Modify Kp And Kd Parameters

    Configuring the PrecisionFlo Module Adjust Kp and Kd Values Using an Oscilloscope (continued) From Set Kd Adjust Bead unstable? Kd + 100 Kd –100 Kd +20 Bead unstable? Kd – 20 Done Fig. 24 Set Kd (with an Oscilloscope) Using the Control Pendant to Modify Kp and Kd Parameters Refer to the chart in Fig.

  • Page 34: Setting The Flow-Meter K-Factor

    Configuring the PrecisionFlo Module Setting the Flow-Meter K-Factor Calibrating Flow Rate and Setting Module Operation Mode If your PrecisionFlo unit has a flow meter, you need to set the K-factor. When you calibrate the flow rate you are performing 2 functions: The flow meter sends an electrical pulse to indicate the passage of a specific amount of material.

  • Page 35: Setting Flow Calibration

    Configuring the PrecisionFlo Module Using Flow Mode 3. If your PrecisionFlo configuration does not include a flow meter, determine the maximum outlet In flow mode, you enter the maximum flow rate re- pressure for your application. quired by the application. The PrecisionFlo module: Setting Flow Calibration 1.
  • Page 36 Configuring the PrecisionFlo Module Calibration for Systems that have a Flow Meter Calibration for Systems with a Disconnected Flow Meter or Without a Flow Meter Connected to the Control Assembly (continued) To calibrate the material flow: 4. Key in the maximum operating flow rate, in cubic centimeters/minute, then press [ENTER].

  • Page 37: Setting Precisionflo On And Off Delays

    Configuring the PrecisionFlo Module Setting PrecisionFlo On and Off Delays Table 4 — Delay On/Off Variables The PrecisionFlo metering valve can physically re- Variable: Sets the Amount of Time: spond faster than the dispense device and dispense Gun ON the device delays opening after gun solenoid.
  • Page 38 Configuring the PrecisionFlo Module Test Procedure A Test Procedure B To use an oscilloscope to determine ON and OFF To determine ON and OFF delays: delays: 1. Set the GUN ON and REGULATION ON delays 1. Connect one input channel of an oscilloscope to to 0.
  • Page 39 Configuring the PrecisionFlo Module Modifying PrecisionFlo ON Delays Modifying PrecisionFlo OFF Delays 1. On the control pendant: 1. On the control pendant: HOME SETUP Protected Setup HOME SETUP Protected Setup 2. Key in the password, then press [ENTER]. 2. Key in the password, then press [ENTER]. 3.

  • Page 40: Controlling Volume Compensation

    Configuring the PrecisionFlo Module Controlling Volume Compensation 4. You see: ––MODIFY PD/VOL COMP–– If the PrecisionFlo module is operating in flow mode, Kp xxxx Kd xxxx you should turn on volume compensation. When Vol Comp= xxx xx cts volume compensation is on, the PrecisionFlo module Press F1 To Toggle measures the volume of material dispensed and then adjusts the actual material flow rate to match the...

  • Page 41: Fine Tuning

    Fine Tuning The procedures in this section are for fine tuning the 2. You see: PrecisionFlo system when there are minor or tempo- ––SCALE ANALOG IN–– rary changes to the material characteristics. Analog Input Scale Setting Scale Analog In Factor=xxx% Previous=xxx% The Scale Analog In allows the operator to uniformly increase or decrease the dispense rate throughout the...

  • Page 42: Precisionflo Module Operation

    PrecisionFlo Module Operation Pressure Relief Procedure 5. Refer to Fig. 29. and perform the following steps to open the dispense device and relieve fluid This procedure describes how to relieve pressure for pressure: the PrecisionFlo unit. Use this procedure whenever you shut off the dispenser/sprayer and before checking a.

  • Page 43: Starting The Module

    PrecisionFlo Module Operation Starting the Module Restarting the Module To start the module, you (Fig. 30): If the module is on, but the CONTROL ON indicator on the control assembly is not lit: 1. Carefully inspect the entire system for signs of leakage or wear.

  • Page 44: Reading The Precisionflo Control Panel Indicators

    PrecisionFlo Module Operation Reading the PrecisionFlo Control Panel Indicators Use the tables below and Fig. 30 to read the indicators on the PrecisionFlo control panel. Part No. 918463 Part No. 918644 Fig. 30 Button/Switch What it Does Master Start / Stop Reset Button Turns on power to PrecisionFlo’s metering valve drive after power is applied to the module.

  • Page 45: Setting Operation Modes

    PrecisionFlo Module Operation Setting Operation Mod 3. You see: The PrecisionFlo module has 3 operating states: –AUTOMATIC DISPENSE– >Monitor Pressure Automatic dispense mode — enables the Volume Dispensed PrecisionFlo module so that when it receives a Last Fault command from the robot, PrecisionFlo can begin dispensing material.

  • Page 46: Shutting Down The Precisionflo Module

    PrecisionFlo Module Operation Using Manual Dispense Mode Shutting Down the PrecisionFlo Module 1. Make sure the CONTROL ON indicator, (26) in Fig. 30, is lit. If it is not, push the MASTER START button (24) to turn on power to the Preci- sionFlo metering valve drive circuitry.

  • Page 47: Maintenance

    Maintenance Maintaining the PrecisionFlo Module 1. Perform the Pressure Relief Procedure on page 42 to ensure the module is depressurized. See Fig. 4 on page 9 for a description of the basic components in a typical system equipped with a Preci- WARNING sionFlo module.

  • Page 48: Troubleshooting And Fault Recovery

    Troubleshooting and Fault Recovery The following table describes the valid fault codes Restarting the Module After a Fault used by the PrecisionFlo module, possible causes, and If a fault has occurred, you must clear the fault before solutions. See Theory of Operation – Fault Han- restarting the PrecisionFlo module.
  • Page 49 Troubleshooting and Fault Recovery Warnings (continued) Table 6 — Fault Code Table Fault Fault Name Fault Causes Solutions Code Description Inlet Pressure Input pressure to Precision- Incorrect limit set Check limit setting and correct High Flo metering valve is above if necessary.

  • Page 50: Alarms

    Troubleshooting and Fault Recovery Alarms Table 7 — Alarm Code Table Alarm Alarm Alarm Description Causes Solutions Code Name Servo Drive Servo circuit condition at Servo drive failure Replace servo drive Fault servo drive’s output, or hard- ’ Motor short Check that motor coil resistance is ware failure occurred on the 10–13 Ohms.

  • Page 51: Menu Selection Map

    Menu Selection Map HOME Automatic Manual Setup AUTOMATIC Monitor Pressure Volume Dispensed SETUP Last Fault Flow Calibration Outlet Press. Limit MANUAL Inlet Press. Limit Desired Flow = xx% Tip Press Limit Press F2 to Dispense Scale Analog In Protected Setup MONITOR PRESSURE VOLUME DISPENSED LAST FAULT...

  • Page 52: Precisionflo Module I/O

    PrecisionFlo Module I/O PrecisionFlo Control Board FLOW METER MATERIAL INPUT ’ Fig. 32 PrecisionFlo Module I/O Schematic Figure 32 shows the internal and external signals used by the PrecisionFlo module. Inputs to the opto-isolators are digital signals from external sources such as a robotic system or temperature conditioning system. Outputs from the opto-isolators are digital signals either sent to an external robotic system and used to control the solenoid air valve which opens and closes the dispense gun.

  • Page 53: I/O Rack Layout

    PrecisionFlo Module I/O Fig. 33 I/O Rack Layout Figure 33 shows the layout of input/output (I/O) modules in the PrecisionFlo control enclosure. Table 8 describes these I/O modules on page 54. For wiring information, see the wiring diagram in your system documentation. 310531...

  • Page 54: I/O Module Description

    PrecisionFlo Module I/O Table 8 — I/O Module Description Module Description Input/Output Active State Normal Number (no fault) LED State Watch Dog Signal Output Fault Strobe Output High Dispenser Stop Output Closer Solenoid Output High Gun Solenoid Output High Dispense Input High Temperature Conditioning Fault...

  • Page 55: Theory Of Operation

    Theory of Operation Manual Mode Automatic Mode When in Manual mode, the PrecisionFlo module When in Automatic mode, the PrecisionFlo module remains in a ready state, and reacts only to operator remains in a ready state, indicated by the DISPENSER input to the control pendant.
  • Page 56 Theory of Operation Typical Dispense Cycle DISPENSER READY Robot In Cycle Style Data Valid Style Data MEASURE VOLUME DISPENSE Gun Open PrecisionFlo Metering Valve Regulating Table 9 — Dispensing Operation Timing 65 msec Time between MEASURE VOLUME and DISPENSE Gun on delay The user sets either the gun on delay or regulation on delay timing.
  • Page 57 Theory of Operation Typical Dispense Cycle 16. At the end of the cycle, PrecisionFlo module (continued) checks if a GUN OFF DELAY has been set by the 7. Robotic system controller requests material to be user. dispensed by setting the DISPENSE signal HIGH. If the delay has been set, the PrecisionFlo module 8.
  • Page 58 Theory of Operation Fault Handling For example, if bits 2 and 3 are HIGH, the fault code > value is equal to 4 + 8, or 12, and a Volume Fault is indicated. Fault Strobe Typical Fault Handling Procedure 1. A problem occurs in the PrecisionFlo module. >1 msec 2.
  • Page 59 Theory of Operation Volume Reporting To determine the amount of material dispensed, con- vert the 10 bits from binary to decimal. The accuracy The volume dispensed during the last job is available depends on the accuracy of the flow meter. on the data bus at the end of a cycle.
  • Page 60 Theory of Operation Volume Reporting 9. Robotic controller sets the VOLUME REQUEST (continued) signal HIGH. 1. Robotic controller sets MEASURE VOLUME to LOW after the cycle is complete. 10. PrecisionFlo module places the second 5 bits (B5–B9) on the data bus . 2.

  • Page 61: Volume Compensation

    Theory of Operation Volume Compensation Volume Compensation Algorithm The algorithm for controlling flow: The PrecisionFlo module compensates for changes in material viscosity by: 1. Find the pressure from commanded flow and flow calibration curve. 1. Comparing actual flow rate with the flow rate commanded by the robot.

  • Page 62: Parts

    Parts Model 918463, PrecisionFlo Control Assembly Part Description Qty. Part Description Qty. 617350 Pendant, PrecisionFlo 918583 Board assy., service, control, PrecisionFlo 187764 Holster, pendant Includes items 80 and 90 617353 Cable, assy, pendant, 4.57 m (15 ft) 918494 . EPROM set, programmed 617508 Label, PrecisionFlo, 237955...
  • Page 63 Parts Model 918463, PrecisionFlo Control Assembly (continued) Fig. 40 310531...

  • Page 64: Model 918644 Control Assembly

    Parts Model 918644, PrecisionFlo Control Assembly Part Description Qty. Part Description Qty. 114617 Pendant, door 918583 Board assy., service, control, PrecisionFlo 617508 Label, PrecisionFlo, Includes items 8 and 9 15.2 x 30.5 mm (6 x 12”) 918494 . EPROM set, programmed 238093 Board assy., current/temp 237955...
  • Page 65 Parts Model 918644, PrecisionFlo Control Assembly (continued) Fig. 42 310531...

  • Page 66: Precisionflo Control Interface Signals

    PrecisionFlo Control Interface Signals The PrecisionFlo module is designed to be controlled by a robotic workcell or line control computer. This section describes the interface between the line or cell control system and the PrecisionFlo module, and provides cable/pin level information for the connections. For information about the connector pin-outs, see page 71 . Digital Input Signals sent from an external controller to the PrecisionFlo module.

  • Page 67: Digital Output

    PrecisionFlo Control Interface Signals Digital Output Signals sent to an external controller from the PrecisionFlo module. Signal Name Connector / Signal Description Fault Strobe I/O–D16 Signal is HIGH when the PrecisionFlo module has detected a fault, and valid data representing the current fault condition is available to be read from the data bus.

  • Page 68: Module Internal Interface Signals

    Module Internal Interface Signals Digital Input Signal Name Connector / Signal Description Temperature Fault WIRE 1561 A temperature conditioning system can raise this signal to indicate an over- or under-temperature condition to the PrecisionFlo module. The activation of this signal will cause the PrecisionFlo module to place fault code 24 on the data bus for transmission to the external controller (unless volume data is currently being reported).

  • Page 69: Analog Input

    Module Internal Interface Signals Analog Input Signal Name Connector / Pin Signal Description PrecisionFlo SIG = MS–C Provides an input from the pressure transducer at the PrecisionFlo Outlet Pressure COM = MS–B metering valve outlet to the PrecisionFlo control assembly. This signal is necessary for the module to control outlet pressure, and allows the operator to monitor fluid pressure from the control pendant.

  • Page 70: Control Panel Operator Interface

    Control Panel Operator Interface PrecisionFlo Module Control Panel The control panel has these indicators and switches: Control / Indicator Device ID Control / Indicator Description Name POWER ON / LT113 Light is ON when both electric power and a proper ground are connected GROUND CON- to the PrecisionFlo control assembly.

  • Page 71: Connector Pin-Outs

    Connector Pin-outs These pin-outs are for the connectors on the side of the PrecisionFlo Control Assembly cabinet. For descriptions of the signals, see the tables beginning on page 66. Motor Power (MP) Pendant (TP) Contacts Connects to Contacts Connects to + motor –...
  • Page 72 Connector Pin-outs Operations (OP) Contacts Connects to + 24 V 24 V common gun solenoid – closer solenoid command + servo pressure servo ressure valve command – +12 V 12 V common signal auxiliary pressure transducer common ground shield 310531...

  • Page 73: Appendix A. Hand Pendant Operation

    Appendix A. Hand Pendant Operation Do this: Select from the menu ––––––––HOME–––––––– >Automatic 1. Use the UP and DOWN Manual arrow keys to move the Setup cursor to your choice. Press [ENTER]. Signal that you have completed entering information into a field or screen Press the [ENTER] key.

  • Page 74: Appendix B. Configuring The Hand Pendant

    Appendix B. Configuring the Hand Pendant You must set three parameters on the pendant: the 1. Make sure the pendant and pendant cable are display contrast, baud rate, and data format. connected to the control assembly. During the set-up procedure, the pendant automatically 2.

  • Page 75: Appendix C. Changing The Software Chips

    NOTE: Have the system binder (a collection of manu- Make sure all the pins are in the holes als and diagrams in a three-ring binder, supplied by Graco) available to refer to. Note direction of chip Installing the New Software Fig.

  • Page 76: Checking For Control Panel Dc Voltage Problems

    Appendix C. Changing the Software Chips Control Component Identification Checking for Control Panel DC Voltage Problems There are four major control components: Power Supply WARNING Service Control Board Current/Temperature Board ELECTRIC SHOCK HAZARD Pendant High voltage is present when performing the following voltage checks, which Before you troubleshoot the PrecisionFlo Control, it is could cause an electric shock injury if...

  • Page 77: Appendix D. Door Pendant Operation

    Appendix D. Door Pendant Operation Do this: Select from the menu 1. Use the UP and DOWN arrow keys to move the cursor to your choice. Press [ENTER]. Signal that you have completed entering information into a field or screen Press the [ENTER] key.

  • Page 78: Appendix E. Configuring The Door Pendant

    Appendix E. Configuring the Door Pendant You must set three parameters on the pendant: the 5. Adjust the display contrast. display contrast, baud rate, and data format. a. Step through the selections, until the display is During the set-up procedure, the pendant automatically at the desired contrast.

  • Page 79: Technical Data

    12–30 Volts D.C. Control Assembly Storage Temperature –25 to +55 C (–13 F to + 131 F) * 4–20 mA. current mode flow control is available as a factory configuration of the control board. Contact Graco Technical Assistance for information. Related Publications...

  • Page 80: Graco Standard Warranty

    Graco’s written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or sub- stitution of non–Graco component parts.

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