Graco 313883A User Manual
Repair-Parts
ProMix
®
3KS
313883A
Plural Component Proportioner
Manual and Automatic systems for proportional mixing of plural component coatings.
For professional use only.
Approved for use in explosive atmospheres (except the EasyKey and 3KS Power Supply
Module).
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
See page 4 for model information, including maximum working
pressure. Equipment approval labels are on page 3. Some
components shown are not included with all systems.
ENG
0359
#53
TI14543a
II 2 G
Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Equipment Approvals . . . . . . . . . . . . . . . . . . . . . . . 3
System Configuration and Part Numbers . . . . . . . 4
Configurator Key . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Check Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Solenoid Troubleshooting . . . . . . . . . . . . . . . . . 13
3KS Fluid Station CAN Isolation Board
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 16
Color Change Board Diagnostics . . . . . . . . . . . 18
Power Supply Module Barrier Board
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 20
Fluid Manifold Troubleshooting . . . . . . . . . . . . . 21
Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . 22
System Pneumatic Schematic
(2KS Fluid Panel) . . . . . . . . . . . . . . . . . . . . 22
System Electrical Schematic . . . . . . . . . . . . . . . 24
Power Supply Module Electrical Schematic . . . 28
Tubing Schematic . . . . . . . . . . . . . . . . . . . . . . . 29
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Before Servicing . . . . . . . . . . . . . . . . . . . . . . . . 30
After Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Servicing Power Supply Module . . . . . . . . . . . . 31
3KS Wall Mount Fluid Station . . . . . . . . . . . . . . 35
Servicing Flow Meters . . . . . . . . . . . . . . . . . . . . 39
Servicing Fluid Manifold . . . . . . . . . . . . . . . . . . 40
Servicing Color Change Module, Color/Catalyst
Valves, and Dump Valves . . . . . . . . . . . . . . 40
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Configurator Key . . . . . . . . . . . . . . . . . . . . . . . . 41
ProMix 3KS System . . . . . . . . . . . . . . . . . . . . . . 42
Color Change Accessory Kits . . . . . . . . . . . . . . 43
258670 Power Supply Module . . . . . . . . . . . . . . 44
Wall Mount Fluid Station . . . . . . . . . . . . . . . . . . 46
Available Cables . . . . . . . . . . . . . . . . . . . . . . . . 48
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 50
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 50
2 313883A
Related Manuals
Related Manuals
Component Manuals in English
Manual Description
313881 ProMix 3KS Kit Installation
313882 ProMix 3KS Manual System Operation
313885 ProMix 3KS Automatic System Operation
312775 ProMix 2KS Manual System Installation
312776 ProMix 2KS Manual System Operation
312777 ProMix 2KS Manual System Repair-Parts
312778 ProMix 2KS Automatic System Installation
312779 ProMix 2KS Automatic System Operation
312780 ProMix 2KS Automatic System
Repair-Parts
312781 Fluid Mix Manifold
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 Flow Meter
313599 Coriolis Flow Meter
313290 Floor Stand Kit
313542 Beacon Kit
313386 Basic Web Interface/Advanced Web
Interface
406799 15V256 Automatic System Upgrade Kit
406800 15V825 Discrete I/O Board Kit
Equipment Approvals
Equipment approvals appear on the following labels
which are attached to the Fluid Station and Power Supply Module. See F
Power Supply Module and Fluid Station Label
ProMix® 3KS
Electronic Proportioner
FM08ATEX0074
II 2 G
Ex ia IIA T3
MAX AIR WPR
.7 7 100
MPa bar PSI
MAX FLUID WPR
MPa bar PSI
MAX TEMP 50°C (122°F)
PART NO. SERIES SERIAL MFG. YR.
Intrinsically safe equipment
for Class I, Div 1, Group D, T3
CUS
Ta = -20°C to 50°C
Install per 289833
IG. 1 on page 4 for label locations.
ATEX Certificate is listed here
Intrinsically Safe (IS) System. Install
per IS Control Drawing No. 258682.
EasyKey Interface IS Associated
Apparatus for use in non hazardous
CUS
Intrinsically safe
equipment for Class I,
Div 1, Group D, T3
Ta = -20°C to 50°C
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.
GRACO INC.
P.O. Box 1441
Minneapolis, MN
55440 U.S.A.
Fluid Station Label
®
ProMix 3KS
FM08ATEX0073
II 2 G
Ex ia IIA T3
FLUID PANEL
MAX AIR WPR
.7 7
MPa bar PSI
SERIAL
TI14376a
100
GRACO INC.
P.O. Box 1441
Minneapolis, MN
55440 U.S.A.
TI14374a
ATEX Certificate is listed here
Power Supply Module Label
ProMix 3KS
PART NO.
GRACO INC.
P.O. Box 1441
Minneapolis, MN
55440 U.S.A.
®
SERIES NO. MFG. YR.
Intrinsically safe connections
for Class I, Div 1, Group D
CUS
Ta = -20°C to 50°C
Install per 258682
Um: 250 V
POWER REQUIREMENTS
VOLTS
AMPS
85-250 ~
2 AMPS MAX
50/60 Hz
II (2) G
[Ex ia] IIA
FM08ATEX0072
TI14375a
ATEX Certificate is listed here
313883A 3
System Configuration and Part Numbers
System Configuration and Part Numbers
Configurator Key
The configured part number for your equipment is printed on the equipment identification
labels. See F
each of the following categories, depending on the configuration of your system.
IG. 1 for location of the identification labels. The part number includes digits from
3K
System
Component C
Fluid Meter Component C Change
TK 0 = No Meter
1 = G3000
2 = G3000HR
3 = 1/8 in. Coriolis
4 = Solvent Meter
Label Location
on Fluid Station
Maximum Fluid
Working Pressure
is listed here
0 = No Valves (single component C)
1 = Two Valves (low pressure)
2 = Four Valves (low pressure)
3= Two Valves (high pressure)
4= Four Valves (high pressure)
ProMix® 3KS
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
MPa bar PSI
MAX TEMP 50°C (122°F)
Intrinsically Safe (IS) System. Install
per IS Control Drawing No. 258682.
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.
Not
Designated
00
SERIAL
GRACO INC.
P.O. Box 1441
Minneapolis, MN
55440 U.S.A.
Not
Designated
Label Location on
Power Supply Module
TI14370aTI14361a
Configured Part Number
TI14376a
FIG. 1: Identification Label
4 313883A
System Configuration and Part Numbers
Hazardous Location Approval
Models using a G3000, G3000HR, or intrinsically safe Coriolis meter for A, B, and C meters 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: A Model with Flow Control has a maximum working pressure of 190 psi (1.31 MPa, 13.1 bar).
Check the identification label on the EasyKey, power supply module, or fluid station for the system maximum working pressure. See F
IG. 1.
ProMix Fluid Manifold Components Maximum Working Pressure
Base System (no meters [option 0], no color/component C change [option 0],
and no flow control [Optional with ProMix 2KS Base Unit]) . . . . . . . . . . . . . . . . . . . .3000 psi (21.0 MPa, 210 bar)
Meter Option 1, 2, and 4 (G3000, G3000HR, or Solvent Meter) . . . . . . . . . . . . . . . .3000 psi (21.0 MPa, 210 bar)
Meter Option 3 (Coriolis Meter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2300 psi (15.86 MPa, 158.6 bar)
Color Change Option 1 and 2 (low pressure valves) . . . . . . . . . . . . . . . . . . . . . . . . . 300 psi (2.07 MPa, 20.6 bar)
Color Change Option 3 and 4 (high pressure valves). . . . . . . . . . . . . . . . . . . . . . . . . . 3000 psi (21 MPa, 210 bar)
Flow Control (Optional with ProMix 2KS Automatic System Base Unit). . . . . . . . . . . 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.)
313883A 5
Warnings
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 symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found 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
Only models with a G3000, G250, G3000HR, G250HR, or intrinsically safe Coriolis meter for A, B, and C
meters are approved for installation in a Hazardous Location - Class I, Div I, Group D, T2 C. To help prevent fire and explosion:
• 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 system components as this may impair intrinsic safety.
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.
• Tighten all fluid connections before operating the equipment.
• 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 Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
6 313883A
Warnings
WARNING
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 forms from distributor or retailer.
• 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.
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
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 MSDS’s 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 impervious gloves when spraying 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, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
•Gloves
• Hearing protection
313883A 7
Grounding
Grounding
Your system must be grounded. See the Grounding
instructions in your ProMix 3KS Installation manual.
Check Resistance
To ensure proper grounding, resistance between ProMix components and true earth ground must be less
than 1 ohm. Read Warnings, page 6.
Have a qualified electrician check resistance between
each ProMix 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.
Pressure Relief Procedure
NOTE: The following procedures relieve all fluid and air
pressure in the ProMix 3KS 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 A, B,
and C 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, B, and C dose valve solenoids to relieve pressure. See F
NOTE: If a Dose Time alarm (E-7, E-8) occurs, clear
the alarm.
IG. 4.
3. Do a complete system purge, following the instructions under Purging Using Recipe 0 in your system
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, B, and C purge valve solenoids to relieve air
and solvent pressure. See F
pressure is reduced to 0.
NOTE: If a Purge Volume alarm (E-11) occurs, clear
the alarm.
IG. 3.
IG. 4. Verify that solvent
8 313883A
Pressure Relief Procedure
Systems with Color Change and without
Dump Valves
NOTE: This procedure relieves pressure through the
sampling valve.
1. Complete all steps under Single Color Systems,
page 8.
2. Close the A side shutoff valve (SVA), F
the A side sampling valve (RVA).
3. Direct the A side sampling tube into a waste container.
4. See F
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 the sampling valve stops.
5. Press and hold the solvent solenoid override until
clean solvent comes from the sampling valve, then
release.
6. Shutoff the solvent supply to the color change stack
solvent valve.
IG. 3. Open
6. See F
IG. 2. Using the solenoid identification labels
as a guide, press and hold the override button on
each catalyst solenoid until flow from dump valve B
stops.
7. Press and hold the dump valve C solenoid override,
F
IG. 5.
8. See F
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 C stops.
9. Press and hold the dump valve A solenoid override,
F
IG. 4.
10. Press and hold the A side (color) solvent solenoid
override until clean solvent comes from the dump
valve, then release.
11. Press and hold the dump valve B solenoid override,
F
IG. 4.
12. Press and hold the B side (catalyst) solvent solenoid
override until clean solvent comes from the dump
valve, then release.
7. Press and hold the solvent solenoid override until
solvent flow from the sampling valve stops.
8. Open the A side shutoff valve (SVA), F
IG. 3. Close
the A side sampling valve (RVA).
Systems with Color/Catalyst/Component C
Change and Dump Valves
NOTE: This procedure relieves pressure through the
dump valves.
1. Complete all steps under Single Color Systems,
page 8.
2. Shut off all color/catalyst/component C supplies to
the valve stacks.
3. Press and hold the dump valve A solenoid override,
F
IG. 4.
4. See F
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.
13. Press and hold the dump valve C solenoid override,
F
IG. 5.
14. Press and hold the C side solvent solenoid override
until clean solvent comes from the dump valve, then
release.
15. Shutoff the solvent supply to the color/catalyst/component C change stack solvent valves.
16. Press and hold the A, B, and C solvent solenoid
overrides and dump valve overrides until solvent
flow from the dump valves stops.
5. Press and hold the dump valve B solenoid override,
F
IG. 4.
313883A 9
Pressure Relief Procedure
Solenoid
Identification
Label
Module #1
Color Catalyst
Solenoid
Identification
Label
Color
TI12826a
Solenoid
Identification
Label
Solvent Solenoid
Overrides
Module #2
Color Catalyst
Solenoid
Identification
Label
Color
Mount Component C
Valves Here
Solvent Solenoid
Overrides
TI12826a
FIG. 2: Color Change Solenoids
10 313883A
MA
RVA
DVA
FI
Pressure Relief Procedure
DVB
MB
MS
RVB
APV
FI
AT
DVC
SVA SVB
SM
Key: ProMix 2KS Fluid Station
MA Component A Meter
DVA Component A Dose Valve
RVA Component A Sampling
Val ve
SVA Component A Shutoff
Val ve
MB Component B Meter
DVB Component B Dose Valve
RVB Component B Sampling
Val ve
Key: ProMix 3KS Fluid Station
MC
CPV
MC Component C Meter
DVC Component C Dose Valve
RVC Component C Sampling Valve
SVC Component C Shutoff Valve
CPV Component C Purge Valve
SM Static Mixer
FI Fluid Integrator
TI12556a
SPV
SVB Component B Shutoff
Val ve
MS Solvent Meter
SPV Solvent Purge Valve
APV Air Purge Valve
SM Static Mixer
FI Fluid Integrator
AT Air Purge Valve Air Supply
Tu b e
1
3KS fluid inlet. Connect fluid supply line from
2KS fluid manifold outlet here.
RVC
1
SVC
2
Connect fluid supply line to gun.
SM
2
TI14382a
FIG. 3. ProMix 2KS and ProMix 3KS Wall Mount Fluid Stations
313883A 11
Troubleshooting
Troubleshooting
Table 1: System Alarm Codes
Code Description
Follow Pressure Relief Procedure, page 8, before
cleaning, checking, or servicing equipment.
NOTICE
Do not use the fluid in the line that was dispensed off
ratio as it may not cure properly.
NOTE: For complete system troubleshooting, including
the EasyKey, A/B Fluid Station, Booth Control, and
Optional Flow Control, see your ProMix 2KS
Repair-Parts Manual.
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-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
E-29 Tank C Low Alarm
E-30 Overdose C Alarm
E-31 Dose Time C Alarm
12 313883A
Solenoid Troubleshooting
NOTE: Refer to the Schematic Diagrams, page 22.
Troubleshooting
Valve Overrides
AFS #1
AFS #2
SOLV SW
GFB 1 PS
GFB 2 PS
Not Used
Flow Solv
Flow C
Flow A
Flow B
Dose A
Dose B
Dose C
J9
1
J1
J13
1
+
G
s
+
J12
G
s
1
+
G
s
+
J3
G
s
1
+
+
+
Air
Solvent
Dump C
+++
Dump A
3rd Flush
Purge C
++++++
J14 J15 J8
Power
Fiber
Optic
CAN
CAN
Dump B
GFB 2
GFB 1
111
Dump Valve A
Dump Valve B
Optional Solenoid
GFB 1
GFB 2
Dose Valve A
Solenoid
Dose Valve B
Solenoid
F
IG. 4: ProMix 2KS Fluid Station Board and Component A and B Solenoids
Purge Valve A
Solenoid
Purge Valve B
Solenoid
3rd Purge Valve
Solenoid
313883A 13
Locations
TI12652a
Troubleshooting
(Communication)
(Power Input)
(Color Change
J8
J3
VDC
J2
Module)
Valve
Overrides
J1
(Booth Control)
Dump Valve C
location (optional)
FIG. 5. ProMix 3KS Fluid Station CAN Isolation Board and Component C Solenoids
Dose Valve C
Solenoid
Purge Valve C
Solenoid
TI14704a
14 313883A
Troubleshooting
See FIG. 4 and FIG. 5 to troubleshoot the 2KS and 3KS solenoids. Also see the System Electrical Schematic on
pages 24 and 26.
If the dispense or purge valves are not turning on or off correctly, it could be caused by one of the following.
Table 2: Solenoid Troubleshooting
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 75 psi (0.5 MPa, 5.2 bar) or above 120 psi (0.8 MPa, 8 bar),
Visually inspect air and electrical lines for kinks, damage, or loose connections. Service as needed.
3. Solenoid failure. Check the applicable solenoid’s LED (see F
with the following checks. If not lit, go to Cause 4.
Remove the connector for the applicable solenoid and measure voltage
across the pins on the board. If voltage is between 9-15 Vdc, replace the
solenoid.
Manually operate the valves by removing the color change module cover and
pressing and releasing solenoid valve override buttons. F
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 ProMix 3KS Operation manual for
settings,
• Fluid pressure is high and air pressure is low.
IG. 7 and Table 4). If lit, proceed
IG. 2.
4. Fluid station control board or
cable failure.
If there is no voltage across the pins on the board or it is less than 9 Vdc,
check LEDs D9 and D10 (see F
IG. 7 and Table 4). If both are lit and function-
ing properly, or other solenoids in the module are working properly, replace
the color change board.
If D9 and D10 are not lit:
• Check if the cable is disconnected or damaged.
• Check the fluid station control board (see the ProMix 2KS Repair-Parts
Manual).
313883A 15
Loading...