Graco 3A1164B User Manual

Repair-Parts

™

ProControl

Automatic system for fluid management of single component coatings. Includes flow control, flushing, and color change. For professional use only.

For use in explosive atmospheres (except the EasyKey).

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

1KS

See pages 4-5 for model information, including maximum working pressure. Equipment approval labels are on page 3. Some components shown are not included with all systems.

3A1164B

ENG

#53

TI16328a

II 2 G

Contents

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Equipment Approvals . . . . . . . . . . . . . . . . . . . . . . . 3

System Configuration and Part Numbers . . . . . . . 4

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Important Two-Component Material Information . 9

Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 9

Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 9

Keep Components A and B Separate . . . . . . . . . 9

Moisture Sensitivity of Isocyanates . . . . . . . . . . . 9

Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 9

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Check Resistance . . . . . . . . . . . . . . . . . . . . . . . . . 10

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 10

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Solenoid Troubleshooting . . . . . . . . . . . . . . . . . 14

Wall Mount Fluid Manifold Troubleshooting . . . . 16

EasyKey Barrier Board Diagnostics . . . . . . . . . 17

EasyKey Display Board Diagnostics . . . . . . . . . 18

Discrete I/O Board Diagnostics . . . . . . . . . . . . . 20

Fluid Station Control Board Diagnostics . . . . . . 22

Color Change Board Diagnostics . . . . . . . . . . . 24

Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . 26

System Pneumatic Schematic . . . . . . . . . . . . . . 26

EasyKey Electrical Schematic . . . . . . . . . . . . . . 27

System Electrical Schematic . . . . . . . . . . . . . . . 28

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Before Servicing . . . . . . . . . . . . . . . . . . . . . . . . 30

After Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Servicing EasyKey . . . . . . . . . . . . . . . . . . . . . . . 31

Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Servicing Flow Meter . . . . . . . . . . . . . . . . . . . . . 38

Servicing Color Change Module,

Color/Catalyst Valves, and Dump Valves . . 39

Servicing Flow Control . . . . . . . . . . . . . . . . . . . 40

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

ProControl 1KS System . . . . . . . . . . . . . . . . . . . 43

EasyKey Controls . . . . . . . . . . . . . . . . . . . . . . . 46

Available Cables . . . . . . . . . . . . . . . . . . . . . . . . 47

262363 Fluid Station Control Box . . . . . . . . . . . 48

262364 Valve Stack . . . . . . . . . . . . . . . . . . . . . . 50

249849 Flow Control Regulator . . . . . . . . . . . . . 51

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 54

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 54

2 3A1164B

Related Manuals

Component Manuals in English

Manual Description

3A1163 ProControl 1KS Installation 3A1080 ProControl 1KS Operation 312782 Dispense Valve 312783 Color Change Valve Stacks 312787 Color Change Module Kit 312784 Gun Flush Box Kits 310745 Gun Air Shutoff Kit 312786 Dump Valve and Third Purge Valve Kits 312785 Network Communication Kits 308778 G3000/G3000HR/G250/G250HR Flow

Meter 313599 Coriolis Flow Meter 313212 Gun Flush Box Integration Kit 313290 Floor Stand Kit 313542 Beacon Kit 313386 Basic Web Interface/Advanced Web

Interface 406800 15V825 Discrete I/O Board Kit

Equipment Approvals

Equipment approvals appear on the following labels which are attached to the Fluid Station Control Box and

™

EasyKey

EasyKey and Fluid Station Control Box Label

. See FIG. 1 on page 4 for label locations.

ATEX Certificate is listed here

ProControl 1KS

Electronic Proportioner

FM08ATEX0074 II 2 G Ex ia IIA T3

CUS

Intrinsically safe

equipment for Class I,

Div 1, Group D, T3

Ta = -20°C to 50°C

MAX AIR WPR

.7 7 100

MPa bar PSI

MAX FLUID WPR

13.1 190

1.31

MPa bar PSI

MAX TEMP 50°C (122°F)

Intrinsically Safe (IS) System. Install per IS Control Drawing No. 289833. EasyKey Interface IS Associated Apparatus for use in non hazardous location, with IS Connection to Smart Fluid Plate IS Apparatus for use in: Class I, Division 1, Group D T3 C Hazardous Locations

Read Instruction Manual

Warning: Substitution of components may impair intrinsic safety.

PART NO. SERIES

MFG. YR.

Fluid Station Control Box Label

SERIAL

GRACO INC. P.O. Box 1441 Minneapolis, MN 55440 U.S.A.

ProControl

PART NO. SERIES SERIAL

Intrinsically safe equipment for Class I, Div 1, Group D, T3 Ta = -20°C to 50°C Install per 289833

ATEX Certificate is listed here

EasyKey Label

ProControl 1KS

PART NO.

SERIES NO. MFG. YR.

277869

GRACO INC. P.O. Box 1441 Minneapolis, MN 55440 U.S.A.

Intrinsically safe connections for Class I, Div 1, Group D

CUS

Ta = -20°C to 50°C Install per 289833

Um: 250 V

ATEX Certificate is listed here

FLUID PANEL

MAX AIR WPR

.7 7 100

MPa bar PSI

FM08ATEX0073 II 2 G Ex ia IIA T3

POWER REQUIREMENTS

VOLTS

AMPS

II (2) G [Ex ia] IIA FM08ATEX0072

GRACO INC. P.O. Box 1441 Minneapolis, MN 55440 U.S.A.

85-250 ~

2 AMPS MAX

50/60 Hz

3A1164B 3

System Configuration and Part Numbers

Models

The part number for your equipment is printed on the equipment identification labels. See FIG. 1 for location of the identification labels.

Meter Flow Control

Part No. Series Description

262380

262381

262382

262383

Label Location

A ProControl 1KS

ProControl 1KS

Electronic Proportioner

on Fluid Station Control Box

Maximum Fluid

Working Pressure

is listed here

TI15974a

FM08ATEX0074 II 2 G Ex ia IIA T3

.7 7 100

MPa bar PSI

MAX FLUID WPR

1.31

MPa bar PSI

MAX TEMP 50°C (122°F)

CUS

Intrinsically safe

equipment for Class I,

Div 1, Group D, T3

Ta = -20°C to 50°C

MAX AIR WPR

13.1 190

None G3000 Coriolis No Yes

✔

✔ ✔

Read Instruction Manual

Warning: Substitution of components may impair intrinsic safety.

PART NO. SERIES

SERIAL

Label Location on EasyKey

TI15975a

Part Number

MFG. YR.

GRACO INC. P.O. Box 1441 Minneapolis, MN 55440 U.S.A.

FIG. 1: Identification Label, ProControl 1KS Systems

4 3A1164B

System Configuration and Part Numbers

Hazardous Location Approval

Models using a G3000, G3000HR, or intrinsically safe Coriolis meter are approved for installation in a Hazardous Location - Class I, Div I, Group D, T3 or Zone I Group IIA T3.

Maximum Working Pressure

Maximum working pressure rating is dependent on the fluid component options selected. The pressure rating is based on the rating of the lowest rated fluid component. Refer to the component pressure ratings below.

Example: Model 262383 has a maximum working pressure of 190 psi (1.31 MPa, 13.1 bar).

Check the identification label on the EasyKey or fluid station for the system maximum working pressure. See F

IG. 1.

ProMix Fluid Components Maximum Working Pressure

Base System (no meter, no color/catalyst change option,

and no flow control [option). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4000 psi (27.58 MPa, 275.8 bar)

G3000 Meter Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4000 psi (27.58 MPa, 275.8 bar)

Coriolis Meter Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2300 psi (15.86 MPa, 158.6 bar)

Color Change Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 psi (2.07 MPa, 20.6 bar)

Flow Control Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190 psi (1.31 MPa 13.1 bar)

Flow Meter Fluid Flow Rate Range

G3000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75-3800 cc/min. (0.02-1.0 gal./min.)

G3000HR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-1900 cc/min. (0.01-0.50 gal./min.)

Coriolis Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-3800 cc/min. (0.005-1.00 gal./min.)

S3000 Solvent Meter (accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-1900 cc/min. (0.01-0.50 gal./min.)

Standard Features Accessories

Feature

EasyKey with LCD RS 485 Network Cable, 50 ft (15.25 m) Fiber Optic and Power Cables, 50 ft (15.25 m) Fluid Station Control Box Discrete I/O Board A Side Dump Valve, if color valve(s) selected Flow Control with 15 ft (4.57 m) Cable (if selected) Basic Web Interface

Accessory

15V536 Solvent Flow Switch Kit 15V213 Power Cable, 100 ft (30.5 m) 15G710 Fiber Optic Cable, 100 ft (30.5 m) 15G614 Flow Control Extension Cable, 40 ft (12.2 m) 15W034 Strobe Light Alarm Indicator Kit 15V331 Gateway Ethernet Communication Kit 15V963 Gateway DeviceNet Communication Kit 15V964 Gateway Profibus Communication Kit 15V337 Advanced Web Interface

3A1164B 5

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

WARNING

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well ventilated area.

• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc).

• Keep work area free of debris, including solvent, rags and gasoline.

• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes are present.

• Ground all equipment in the work area. See Grounding instructions.

• Use only grounded hoses.

• Hold gun firmly to side of grounded pail when triggering into pail.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

ELECTRIC SHOCK HAZARD

This equipment must be grounded. Improper grounding, setup, or usage of the system can cause electric shock.

• Turn off and disconnect power at main switch before disconnecting any cables and before servicing equipment.

• Connect only to grounded power source.

• All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations.

INTRINSIC SAFETY

Intrinsically safe equipment that is installed improperly or connected to non-intrinsically safe equipment will create a hazardous condition and can cause fire, explosion, or electric shock. Follow local regulations and the following safety requirements.

• Only models with a G3000, G250, G3000HR, G250HR, or intrinsically safe Coriolis meter are approved for installation in a Hazardous Location - Class I, Div I, Group D, T3 or Zone I Group IIA T3.

• Do not install equipment approved only for a non-hazardous location in a hazardous area. See the ID label for the intrinsic safety rating of your model.

• Do not substitute or modify system components as this may impair intrinsic safety.

6 3A1164B

Warnings

WARNING

SKIN INJECTION HAZARD

High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.

• Do not spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

• Do not point gun at anyone or at any part of the body.

• Do not put your hand over the spray tip.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or

servicing equipment.

• Tighten all fluid connections before operating the equipment.

• Check hoses and couplings daily. Replace worn or damaged parts immediately.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system

component. See Technical Data in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all

equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information about your material, request MSDS from distributor or retailer.

• Do not leave the work area while equipment is energized or under pressure. Turn off all equipment

and follow the Pressure Relief Procedure when equipment is not in use.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.

• Do not alter or modify equipment.

• Use equipment only for its intended purpose. Call your distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

3A1164B 7

Warnings

WARNING

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed.

• Read MSDSs to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

• Always wear chemically impermeable gloves when spraying, dispensing, or cleaning equipment.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This equipment includes but is not limited to:

• Protective eyewear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

8 3A1164B

Important Two-Component Material Information

Isocyanate Conditions

Spraying or dispensing materials containing isocyanates creates potentially harmful mists, vapors, and atomized particulates.

Read material manufacturer’s warnings and material MSDS to know specific hazards and precautions related to isocyanates.

Prevent inhalation of isocyanate mists, vapors, and atomized particulates by providing sufficient ventilation in the work area. If sufficient ventilation is not available, a supplied-air respirator is required for everyone in the work area.

To prevent contact with isocyanates, appropriate personal protective equipment, including chemically impermeable gloves, boots, aprons, and goggles, is also required for everyone in the work area.

Material Self-ignition

Moisture Sensitivity of Isocyanates

Isocyanates (ISO) are catalysts used in two component coatings. ISO will react with moisture (such as humidity) to form small, hard, abrasive crystals, which become suspended in the fluid. Eventually a film will form on the surface and the ISO will begin to gel, increasing in viscosity. If used, this partially cured ISO will reduce performance and the life of all wetted parts.

NOTE: The amount of film formation and rate of crystallization varies depending on the blend of ISO, the humidity, and the temperature.

To prevent exposing ISO to moisture:

• Always use a sealed container with a desiccant

dryer in the vent, or a nitrogen atmosphere. Never store ISO in an open container.

• Use moisture-proof hoses specifically designed for ISO, such as those supplied with your system.

• Never use reclaimed solvents, which may contain moisture. Always keep solvent containers closed when not in use.

• Never use solvent on one side if it has been contaminated from the other side.

• Always lubricate threaded parts with ISO pump oil or grease when reassembling.

Some materials may become self-igniting if applied too thickly. Read material manufacturer’s warnings and material MSDS.

Keep Components A and B Separate

Cross-contamination can result in cured material in fluid lines which could cause serious injury or damage equipment. To prevent cross-contamination of the equipment’s wetted parts, never interchange component A (isocyanate) and component B (resin) parts.

3A1164B 9

Changing Materials

• When changing materials, flush the equipment multiple times to ensure it is thoroughly clean.

• Always clean the fluid inlet strainers after flushing.

• Check with your material manufacturer for chemical compatibility.

• Most materials use ISO on the A side, but some use ISO on the B side.

Grounding

Your system must be grounded. See the Grounding instructions in your ProControl 1KS Installation manual.

Check Resistance

To ensure proper grounding, resistance between ProControl components and true earth ground must be less than 1 ohm.

Have a qualified electrician check resistance between each ProControl component and true earth ground. If resistance is greater than 1 ohm, a different ground site may be required. Do not operate the system until the problem is corrected.

NOTE: If a Dose Time alarm (E-7, E-8) occurs, clear the alarm.

3. Do a complete system purge, following the instruc-

tions under Purging Using Recipe 0, in the Pro- Control 1KS Operation Manual.

4. Shut off the fluid supply to the solvent purge valve (SPV) and the air supply to the air purge valve (APV), F

5. With the gun triggered, push the manual override on the A purge valve solenoid to relieve air and solvent pressure. See F reduced to 0.

NOTE: If a Purge Volume alarm (E-11) occurs, clear the alarm.

IG. 3.

IG. 2. Verify that solvent pressure is

Systems with Color Change and Dump Valves

NOTE: This procedure relieves pressure through the

dump valves.

1. Complete all steps under Single Color Systems, page 10.

2. Shut off all color and catalyst supplies to the valve stacks.

Pressure Relief Procedure

NOTE: The following procedures relieve all fluid and air

pressure in the ProControl 1KS system. Use the procedure appropriate for your system configuration.

Relieve pressure when you stop spraying, before changing spray tips, and before cleaning, checking, or servicing equipment.

Single Color Systems

1. While in Mix mode (gun triggered), shut off the fluid supply pumps/pressure pots. Close all fluid shutoff valves at the pump outlets.

2. With the gun triggered, push the manual override on the A dose valve solenoid to relieve pressure. See F

IG. 2.

3. Press and hold the dump valve A solenoid override, F

IG. 2.

4. See F

5. Press and hold the dump valve A solenoid override,

6. Press and hold the A side (color) solvent solenoid

7. Shutoff the solvent supply to the color/catalyst

8. Press and hold the A solvent solenoid override and

IG. 2. Open the color change module. Using

the solenoid identification labels as a guide, press and hold the override button on each color solenoid until flow from dump valve A stops.

IG. 2.

override until clean solvent comes from the dump valve, then release.

change stack solvent valves.

dump valve override until solvent flow from the dump valve stops.

10 3A1164B

Solenoid

Identification

Label

Pressure Relief Procedure

Color Catalyst

Solenoid Identification Label

Color

TI12826a

FIG. 2: Color Change Solenoids

APV

DVA

Solvent Solenoid Overrides

FIH

Key:

MA Component A Meter DVA Component A Dose

Valve SPV Solvent Purge Valve SS Solvent Purge Valve

Solvent Supply Tube APV Air Purge Valve AT Air Purge Valve Air

Supply Tube FIH Fluid Inlet Hose FOH Fluid Outlet Hose

FOH

SPV

TI15977a

FIG. 3. Fluid Manifold

3A1164B 11

Pressure Relief Procedure

12 3A1164B

Troubleshooting

Table 1: System Alarm Codes

Code Description

Follow Pressure Relief Procedure, page 10, before cleaning, checking, or servicing equipment.

NOTE: Do not use the fluid in the line that was dispensed off ratio as it may not cure properly.

Alarm Codes

Table 1 lists the system alarm codes. See the system operation manual for complete information on alarm troubleshooting.

E-1 Communication Error Alarm E-2 Potlife Alarm E-3 Ratio High Alarm E-4 Ratio Low Alarm E-5 Overdose A/B Dose Too Short Alarm E-6 Overdose B/A Dose Too Short Alarm E-7 Dose Time A Alarm E-8 Dose Time B Alarm E-9 Mix in Setup Alarm E-10 Remote Stop Alarm E-11 Purge Volume Alarm E-12 CAN Network Communication Error Alarm E-13 High Flow Alarm E-14 Low Flow Alarm E-15 System Idle Warning E-16 Setup Change Warning E-17 Power On Warning E-18 Defaults Loaded Warning E-19 I/O Alarm E-20 Purge Initiate Alarm E-21 Material Fill Alarm E-22 Tank A Low Alarm E-23 Tank B Low Alarm E-24 Tank S Low Alarm E-25 Auto Dump Complete Alarm E-26 Color/Catalyst Purge Alarm E-27 Color/Catalyst Fill Alarm

3A1164B 13

Troubleshooting

Solenoid Troubleshooting

Dose Valve A Solenoid

J14

J15

Purge Valve A Solenoid

Dose Valve B Solenoid

Purge Valve B Solenoid

J1J12J3J9

CAN

Power

Fiber Optic

TI15916a

FIG. 4: Fluid Station Board and Solenoids

14 3A1164B

Troubleshooting

NOTE: Refer to the Schematic Diagrams, page 26.

If the dispense or purge valves are not turning on or off correctly, it could be caused by one of the following.

Cause Solution

1. Air regulator pressure set too high or too low.

2. Air or electrical lines damaged or connections loose.

Check air pressure. 80-90 psi (550-630 kPa, 5.5-6.3 bar) is commonly used. Do not go below 70 psi (490 kPa, 4.9 bar) or above 120 psi (0.8 MPa, 8 bar).

Visually inspect air and electrical lines for kinks, damage, or loose connections. Service or replace as needed.

3. Solenoid failure Manually operate the valves by removing the Fluid Station cover and press-

ing and releasing solenoid valve override buttons. F

IG. 4.

Use the control board diagnostics to check the signals. If signals do not occur correctly, go to Cause 4.

Valves should snap open and shut quickly. If the valves actuate slowly, it could be caused by:

• Air pressure to the valve actuators is too low. See Cause 1.

• Solenoid is clogged. Make sure air supply has 10 micron filter installed.

• Something is restricting the solenoid or tubing. Check for air output from air line for corresponding solenoid when valve is actuated. Clear restriction.

• A dose valve is turned in too far. See ProControl 1KS Operation manual for settings.

• Fluid pressure is high and air pressure is low.

4. Solenoid, cable, or fluid station control board failure.

Check voltage level to solenoid by pulling solenoid connector and checking voltage between pins.

If voltage is 9-15 VDC, the solenoid is damaged. Replace solenoid or correct electrical line problem.

If there is no voltage, replace the board.

3A1164B 15

Troubleshooting

Wall Mount Fluid Manifold Troubleshooting

See FIG. 5.

APV

FIH

Key:

MA Component A Meter DVA Component A Dose

Valve SPV Solvent Purge Valve SS Solvent Purge Valve

Solvent Supply Tube APV Air Purge Valve AT Air Purge Valve Air

Supply Tube FIH Fluid Inlet Hose FOH Fluid Outlet Hose

DVA

FOH

IG. 5. Wall Mount Fluid Manifold

SPV

TI15977a

16 3A1164B

Troubleshooting

EasyKey Barrier Board Diagnostics

See FIG. 6 and Table 2 to troubleshoot the EasyKey barrier board. Also see the EasyKey Electrical Schematic on page 27 and the System Electrical Schematic on pages 28 and 29.

J4, Pin 1

J1, Pin 1

J5, Pin 1

IG. 6: 255786 EasyKey Barrier Board

Table 2: EasyKey Barrier Board Diagnostics

Connector Description Diagnosis

J1 AC Power Input n/a J4 24 Vdc Power Input to

EasyKey Display Board

J5 12 Vdc Power Output to

Fluid Station Board

3A1164B 17

D5 turns on.

D4 turns on if barrier board is functioning. If D4 does not turn on, fuses F3 or F4 (Graco Part No. 15D979) are blown or there is no input power at J4.

If there is no input power (D5 does not light), fuses F1 and F2 (Graco Part No. 114788) may be blown.

+ 37 hidden pages