For metering and dispensing ambient or high-temperature, high-viscosity
single-component materials. For professional use only.
Not approved for use in European explosive atmosphere locations.
2500 psi (17.2 MPa, 172 bar) Maximum Working Outlet Pressure
1500 psi (10.3 MPa, 103 bar) Maximum Working Inlet Pressure
See Technical Specifications on page 102 for temperature ranges
3A5185B
EN
See page 4 for model information.
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
NOTE: This manual covers a series change to the PGM system. For systems built prior to 2016, refer to manual
3A0260.
Check the identification (ID) plate for the 6-digit part number of the fluid metering system. Use the following matrix to
define the construction of the system, based on the six digits. For example, Part PG0111 represents a PGM fluid
metering system (PG), with a 6cc system (0), unheated (1), with controls/3m (1), and an EnDure snuff-back (1).
NOTE: To order replacement parts, see Parts section in this manual. The digits in the matrix do not correspond to the Ref. Nos. in the Parts drawings and lists.
PG0
First and
Second Digits
Third Digit
Size
1
Fourth Digit
Heat
1
Fifth Digit
Controls *
2
Sixth Digit
Valve
DescriptionDescriptionDescriptionDescription
PG
(Precision
Gear Meter)
0
220cc2Heated1Controls / 3m6Remote mount
6cc1Unheated0No controls1EnDure
snuff-back
2Controls / 6m
3Controls / 9m
4Controls / 15m
*PGM Control Center does not include heat controls. Heat loads are configured to be controlled by Therm-O-Flow
Controllers.
Bulk Melt (Therm-O-Flow 20 + Therm-O-Flow 200) and Ambient
Hoses
†Indicates swivel.
Therm-O-Flow part number 98xxxx models.
43A5185B
Page 5
Models
Remote Dispense Valves
PartDescription
243694Heated Dispense Valve
244951EnDure Valve, Heated,
1/2 in. npt male outlet
244909EnDure Valve, Heated
Fixed Dispense Valves
PartDescription
244907EnDure Valve snuff-back
Accessories
PartDescription
24D824Automation I/O Cable
24E654Ribbon Nozzle Kit, 10 x 1.5 mm
24E655Bead Nozzle Kit, 3 mm dia.
25A055Dynamic Air Regulator for
Therm-O-Flow (P/N UH****)
24E575Dynamic Air Regulator for
Therm-O-Flow (P/N 98****)
24E607Gear Pump Seals, 6 cc
24E619Gear Pump Seals, 20 cc
24E677O-ring Kit, 6 cc
24E626O-ring Kit, 20 cc
24E678Heated Nest, Pilot
24E679Heated Nest, Ribbon or Bead
16E242Nozzle Heater Insert
16E256Ported Nozzle Heater Insert
PartDescription
124267Seal Housing, 6 cc
24E826Gear Shaft Repair Kit, 6 cc
24E827Seal Shaft Repair Kit, 6 cc
124266Pump Seal Housing, 20 cc
24E824Gear Shaft Repair Kit, 20 cc
24E825Seal Shaft Repair Kit, 20 cc
124235Elbow Fitting, 90 degree, 3/4 in.
tube x 16 SAE
124236Elbow Fitting, 90 degree, 1 in. tube
x 16 SAE
124237Elbow Fitting, 90 degree, 16 SAE x
20 JIC
124238Adapter Fitting, 3/4 in. Tube x
16 SAE
124239Adapter Fitting, 1 in. Tube x
16 SAE
124240Adapter Fitting, 1-1/4 in. Tube x
16 SAE
124241Adapter Fitting, 16 SAE x
1in.NPTF
124242Swivel, 16 SAE x 1 in. NPTF
124243Swivel, 16 SAE x 1 in. tube
124244Swivel, 1/2 NPTM x 10 JIC
124245Swivel, 1/2 NPTM x 1/2 NPTF
124286Adapter Fitting, 3/4 NPTM x 8 JICM
124287Adapter Fitting, 1/2 NPTM x 8 JICM
124288Adapter Fitting, 1/2 NPTM x 16
JICM
124289Swivel Fitting, 3/4 NPTM x 1/2 NPS
124290Swivel Fitting, 3/4 NPTM x 3/8 NPS
3A5185B5
Page 6
Warnings
WARNING
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 or on warning labels, 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.
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 or
installing 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.
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, 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.
•Engage trigger lock when not dispensing.
•Do not point dispensing device at anyone or at any part of the body.
•Do not put your hand over the fluid outlet.
•Do not stop or deflect leaks with your hand, body, glove, or rag.
•Follow the Pressure Relief Procedure when you stop dispensing 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.
BURN HAZARD
Equipment surfaces and fluid that is heated can become very hot during operation. To avoid severe
burns:
•Do not touch hot fluid or equipment.
63A5185B
Page 7
Warnings
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or solvent
flowing through the equipment can cause static sparking. 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 sparking).
•Ground all equipment in the work area. See Grounding instructions.
•Never spray or flush solvent at high pressure.
•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.
•Use only grounded hoses.
•Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless they are
anti-static or conductive.
•Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment until
you identify and correct the problem.
•Keep a working fire extinguisher in the work area.
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 Specifications in all equipment manuals.
•Use fluids and solvents that are compatible with equipment wetted parts. See Technical Specifications
in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request Safety Data Sheets (SDSs) 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. Alterations or modifications may void agency approvals and create
safety hazards.
•Make sure all equipment is rated and approved for the environment in which you are using it.
•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.
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 Safety Data Sheets (SDSs) 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.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including
eye injury, hearing loss, inhalation of toxic fumes, and burns. Protective 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.
3A5185B7
Page 8
Overview
AD
AC
AH
AB*
AF*
AA*
AE
AK
AM
AG
Air Supply
Drop Site
AN
Power
AL
AJ
AH
AH
AO
AO
Overview
System Configurations
Typical Heated System Installation
F
IG. 1: Typical Heated System Installation
Key:
AA *Control Center (User Interface)
AB *Gear Meter Assembly
AC Applicator/Dispense Valve†
AD Automation Robot
AE Automation Interface Cable †
AF *Gear Meter Cables
AG Heated Fluid Supply System
AH Fluid Supply Hose
AJ Heat Control
AK Automation Controller
AL Air Filter Assembly
AM Remote Dispense Hose †
AN Heated Manifold
AO Dynamic Regulator †
*Included
† Accessory
83A5185B
Page 9
Typical Ambient System Installation
G
D
C*
F*
A*
E
H
J
Air Supply
Drop Site
K
Power
B*
Overview
F
IG. 2: Typical Ambient System Installation
Key:
A*Control Center (User Interface)
B*Gear Meter Assembly
C*Applicator/Dispense Valve
DAutomation Robot
EAutomation Interface Cable†
F*Gear Meter Cables
GFluid Supply System
HFluid Supply Hose
JAutomation Controller
KAir Filter Assembly
* Included
† Accessory
3A5185B9
Page 10
Overview
Key:
1Gear Meter
2System Controls Box
3User-Interface Touch Display
4External Control Interface
The PGM system provides positive displacement metering for precision bead control. The control accepts automation signals to provide accurate and consistent output
flow. The gear meter can achieve high flow rates with
high viscosity materials.
Control Power On/Off
Typical Applications
•Solar Panel
•Perimeter Seal
•Desiccant
•Edge Seal
•Automotive Manufacturing
•Window and Door General Assembly
Control Power is the power for the signals to the gear
meter which control gear meter rotation. When Control
Power is off, the gear meter cannot rotate.
Pump Ready Light
The Pump Ready light displays when the pump is ready
for Automatic Mode dispensing. When Manual mode is
enabled, this light will not turn on.
Pump Fault Light
The Pump Fault light is illuminated whenever a pump
fault is active.
Manual Purge Button
The Manual Purge button initiates a shot.
3A5185B11
Page 12
Installation
Installation
Before Installation
•Have all system and component documentation
available during installation.
•See component manuals for specific data on component requirements. Data presented here applies to
the PGM assemblies only.
•Be sure all accessories are adequately sized and
pressure-rated to meet system requirements.
•Use the PGM control center only with the PGM
metering assembly.
Overview
The basic steps to install a PGM system are shown
below. See the separate component manuals for
detailed information on supply systems and dispense
valves.
NOTICE
To avoid damaging the PGM system, use at least two
people to lift, move, or disconnect the system. The
system is too heavy for one person to lift or move.
Installation Steps
1. Mount control center.
2. Connect and ground control center.
3. Mount gear meter assembly.
4. Ground gear meter assembly.
5. Check ground continuity.
6. Connect fluid line between gear meter and dispense
valve. For remote mount dispense valves, connect fluid supply line and air supply to gear meter.
7. Plumb filter assembly near air drop site that will be
used for gear meter assembly.
8. Connect other fluid and air lines to additional system
components as instructed in their manuals.
9. Install cable assemblies.
123A5185B
Page 13
Installation
A
B
C
D
Install Control Center
Mount
Ensure the following criteria are met before mounting
the PGM control center:
•Select a location for the control center that allows
adequate space for installation, service, and use of
the equipment.
•For best viewing, the user interface should be
60-64 in. (152-163 cm) from the floor.
•Ensure there is sufficient clearance around the control unit to run cables to other components.
•Ensure there is easy access to an appropriate electrical power source. The National Electric Code
requires 3 ft. (0.91 m) of open space in front of the
control center.
•Ensure there is easy access to the power switch.
Secure the control center with appropriate size bolts
through the 0.50 in. (13 mm) diameter holes. See the
mounting dimensions in the following table and F
Control Center Assembly Measurement
A
B
C
D
24.0 in. (610 mm)
22.5 in. (572 mm)
30.0 in. (762 mm)
28.5 in. (724 mm)
IG. 5.
•Ensure the mounting surface can support the weight
of the control center and the cables attached to it.
F
IG. 5: Control Center Dimensions
3A5185B13
Page 14
Installation
L2
L1
Ground
Electrical Connections
Follow these precautions when grounding, connecting cables, connecting to a power source or making
other electrical connections.
To reduce the risk of fire, explosion, or electric
shock:
•The control center must be electrically connected
to a true earth ground; the ground in the electrical
system may not be sufficient.
•A qualified electrician must complete all grounding and wiring connections.
•For wiring, refer to F
Refer to your local code for the requirements for a
“true earth ground” in your area.
If power and grounding connections are not done properly, the equipment will be damaged and the warranty
voided.
IG. 6.
NOTICE
Install Gear Meter Assembly
To install the PGM metering assembly:
•Mount the gear meter assembly.
•Ground gear meter assembly.
•Connect the gear meter assembly to the control cen-
ter.
•Connect fluid lines and cables.
Mount
Before Mounting Assembly
•See component manuals for specific information on
component requirements. Information presented
here pertains to the PGM gear meter assembly only.
•Have all system and subassembly documentation
available during installation.
•Be sure all accessories are adequately sized and
pressure-rated to meet the system's requirements.
•Use only the Graco PGM gear meter assembly with
the Graco PGM control center.
Mount Assembly
F
IG. 6: 240 Vac Wiring
1. Select a location for the gear meter assembly. Keep
the following in mind:
•Allow sufficient space for installing the equipment.
•Make sure all fluid lines, cables and hoses easily reach the components to which they will be
connected.
•Make sure the gear meter assembly allows the
automation unit to move freely along all axis.
•Make sure the gear meter assembly provides
easy access for servicing its components.
143A5185B
Page 15
2. Mount and secure the gear meter assembly to the
C
B
6 cc Pump
20 cc Pump
A
A
D
C
B
0.238 in. (6.0 mm)
diameter
0.238 in. (6.0 mm)
diameter
automation unit (or other mounting surface) with
mounting plate. The mounting plate is tapped with
M10 x 1.5 bolts. Maximum bolt length through plate
is 0.75 in. (19 mm). See the mounting dimensions in
Table 4 and F
IG. 7.
Table 4: Gear Meter Assembly Measurement
6 cc Pump20 cc Pump
Installation
A
B
C
D
2.00 in. (50.8 mm)3.00 in. (76.2 mm)
5.00 in. (127 mm)3.875 in. (98.43 mm)
2.375 in. (60.33 mm)2.313 in. (58.75 mm)
NA1.063 in. (27.00 mm)
F
IG. 7: Gear Meter Assembly Dimensions
3A5185B15
Page 16
Installation
Grounding
The equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
NOTICE
If power and grounding connections are not done properly, the equipment will be damaged and the warranty
voided.
Gear Meter
Ground the gear meter assembly as instructed here and
in the individual component manuals. Make sure the
gear meter assembly and its components are installed
correctly to ensure proper grounding.
•For a remote mount dispense valve, connect a
fluid line between the gear meter outlet and the dispense valve. Shorter fluid lines (hoses) will provide
better fluid system response.
•See page 4 for list of inlet fittings.
FIG. 8: Inlet Fitting
Air and Fluid Hoses
For static dissipation, use only electrically conductive
hoses or ground the applicator / dispense valves.
Dispense Valve
Follow the grounding instructions in the dispense valve
manual.
Connect Fluid and Air Lines
NOTICE
Route all fluid and air lines carefully. Avoid pinching
and premature wear due to excessive flexing or rubbing. Hose life is directly related to how well they are
supported.
Follow the instructions in your separate component
manuals to connect air and fluid lines. The following are
only general guidelines.
•The PGM gear meter assembly should be installed
on the automation unit or in another appropriate
place, as close as practical to the dispense valve.
•Air must be clean and dry, between 60-100 psi
(0.41-0.68 MPa, 4.14-6.89 bar). Flush air line before
plumbing in air filter assembly (234967). Plumb in air
filter assembly near air drop site (upstream of PGM).
Adding an air regulator to this line will provide more
consistent dispense valve response times.
•Connect a 1/4 in. OD air supply line to the inlet port
on the PGM air supply inlet.
NOTE: To maximize system performance keep the
dispense hose length as short as the application
will allow.
163A5185B
Page 17
Install Cable Assemblies
NOTE: Models with
15 meter cables
include a remote
junction box to be
mounted in the field.
Installation
1. Connect servo motor power and feedback cables.
2. Connect pressure transducer cable.
3. Connect dispense valve solenoid cable.
4. Connect heat cables, if equipped, to Therm-O-Flow
controller.
F
IG. 9: Cable Installation Diagram
3A5185B17
Page 18
System Setup
System Setup
Configure Control Settings (page 19)
Configure Mode Settings (page 19)
Configure Delay Settings (page 20)
Adjust Pressure Sensors (page 20)
Configure Errors (page 21)
End System Setup
System Setup
Overview
The PGM system compensates for temperature, flow, or
pressure fluctuations. However, if there is a hardware
change on the supply system or the dispense material is
changed, the PGM system must be setup again.
After material is loaded into the supply system, set up
the PGM system using the Setup screens. F
shows the major system setup steps. The following subsections provide instructions to complete each setup
step. Once these steps are complete the module is
ready for operation.
NOTE: See Appendix A - User Interface Display on
page 82 for detailed operating instructions for each
user interface screen.
IG. 10
F
IG. 10
183A5185B
Page 19
System Setup
Configure Control Settings
Set the controls for the dispense source, how dispense
commands are sent, and auto mode settings.
1. From the Home screen, select the Setup icon
.
NOTE: The Setup screens are password protected.
Enter password “PGM17
screens.
”to access the following
Configure Mode Settings
Set the dispense mode (bead or shot). The bead scale
and pre-charge are also adjustable from the Mode Settings screen.
NOTE: See Appendix A - User Interface Display on
page 82 for a description of each feature.
1. With the system in setup mode,
igate to the Mode Settings screen.
press
to nav-
F
IG. 11
2. Select Display or Remote from the Command Value
Source Options.
3. If Command Value Source is set to Remote,
enter the Remote Max Flow (cc/min) for the 10 VDC
command source.
4. Select Enable or Disable for Run Mode Bead Adjust
Options. Default is Disable.
5. Select Display or Remote for Job End Mode
Options.
6. If Job End Mode is set to Display, press Job End
Delay Display field and enter desired delay time in
seconds.
FIG. 12
2. Select Bead or Shot for the Dispense Mode.
3. If Command Value Source is set to Display, enter
the flow rate in cc/min in the Fixed Command Flow
Rate. See Configure Control Settings for instructions to set the Command Value Source value.
4. If Shot Time is displayed, enter the Shot Time in
Seconds.
NOTE: Shot Time is only displayed if Dispense
Mode is set to Shot.
3A5185B19
Page 20
System Setup
Configure Delay Settings
Set on and off delays (in milliseconds) for the dispense
valve.
1. With the system in setup mode,
igate to the Delay Settings screen.
F
IG. 13
press
to nav-
Adjust Pressure Sensors
Set pressure offsets and pressure limits.
1. With the system in setup mode,
igate to the Pressure Sensor screen.
FIG. 14
press
to nav-
2. Press the On Delay field and enter a desired delay
value in milliseconds. Default is zero milliseconds.
3. Press the Off Delay field and enter e desired value
in milliseconds. Default is zero milliseconds.
2. Set the desired offset for the inlet and outlet pressures. Remove all pressure on the sensors, and
then adjust the offset so the measured value
reads 0.
NOTE: Offsets are set at the factory.
3. Set the desired minimum and maximum pressure
limits for the inlet and outlet.
NOTE: These values may need changed after the
system has gone through the Startup procedure.
203A5185B
Page 21
Configure Errors
Set the error type (error or deviation) that will be issued
if the pressure or drive torque goes outside the set high
and/or low limits. See Appendix A - User Interface Display on page 82 for information on the purpose of
each error type.
NOTE: When an alarm is set to Error the machine
will be disabled when the alarm occurs.
System Setup
1. With the system in setup mode,
igate to the Errors screen.
F
IG. 15
2. Select Enable or Disable for the Error Reset.
3. Select Error or Deviation for the Inlet Pressure.
4. Select Error or Deviation for the Outlet Pressure.
press
to nav-
5. Select Error or Deviation for the Drive Torque.
3A5185B21
Page 22
Operation
Operation
Startup
Initial Startup
1. Ensure the PGM control enclosure and all of the
proper connections to and from the control enclosure have been made. Ensure fittings are tight.
2. Read and understand the Operation and User Interface sections of this manual along with the
related manuals.
3. Continue startup with Step 2 in Standard Startup.
Standard Startup
1. Carefully inspect the entire system for signs of leakage or wear. Replace or repair any worn or leaking
components before operating the system.
2. Press the Stop button on the control enclosure.
3. Turn on air and electrical power to the system.
4. Turn on the main power to supply power to the
PGM.
Load Material
Before using the system, material must be loaded into
the supply system.
1. If this is a new installation, follow the Initial Startup
procedure. Otherwise, follow the Standard Startup
procedure.
2. Turn on the fluid supply pressure to the fluid inlet
block for the PGM.
3. Place the dispense valve over a waste container.
4. Navigate to the Maintenance screen. See Screen
Navigation Diagram on page 82 in the Appendix
A - User Interface Display section.
5. Select Manual Control Mode .
6. Enter the minimum flow rate to prime the system.
See the following table.
Pump Size
cc / revolution
612
2040
Min Flow Rate
cc / minute
5. Check Interface Signals: If this is a new installation, power on each system input and verify that
each input is being received. See Appendix B - I/O
on page 98.
6. For heated systems, open the dispense valve over a
waste container while the system is heating up. This
will prevent a pressure build-up caused by fluids or
gases expanding from the heat.
7. Turn on the material supply system.
223A5185B
7. Press and hold the manual start button .
Dispense fluid until clean, air-free fluid flows from
the dispense valve.
NOTE: The manual purge button on the user-interface panel can be used to prime the system.
8. If desired, press to navigate to the Home
screen.
Page 23
Operation
Maintenance Mode Operation
Operating from maintenance mode enables the pump to
begin dispensing when the user presses .
Dispense parameters and duration depend on the
selected control.
Verify System Operation
Use maintenance mode to manually check the operation
of the PGM system components before switching over
to automation control (normal operation).
NOTE: Perform any of the following procedures
while in maintenance mode.
Set Inlet Pressure
The inlet pressure reading should be in the range of
300 psi (2.1 MPa, 21 bar) to 1500 psi (10.3 MPa,
103 bar). The recommended inlet pressure should be
500 psi (3.4 MPa, 34 bar) lower than the outlet pressure.
Dispense Weight Verification
1. From maintenance screen, select Shot mode.
2. Enter a 10 second shot time.
3. Enter the desired flow rate.
4. Record a minimum of 5 shot weights.
5. If shot weights are inconsistent check feed pressure
or reduce flow rate and repeat shot test.
NOTE: Regular weight checks are recommended to
ensure system is performing properly.
Follow steps in the supply system manual to set the inlet
pressure.
NOTICE
Excessive inlet pressure will cause accelerated wear
on the gear meter seals and the pump feed system.
Feed System Pressure Drop
During material flow, the PGM inlet pressure decreases.
The amount the pressure decreases is the amount of
pressure lost between the feed pump and the PGM inlet.
With high viscosity fluids, long line lengths, or small
diameter line sizes this pressure decrease can be thousands of psi (hundreds of bar). This means that the
static pump pressure is set much higher than the PGM
needs at its inlet. To prevent excessive static pressure
at the inlet of the PGM, a dynamic regulator is recommended on air motor supply air. During dispense the
normal pump regulator is active. During a stalled condition the dynamic regulator is active.
3A5185B23
Page 24
Operation
Calibration
1. Perform Startup procedure, page 22. Verify all system components are at desired pressures and temperatures. Adjust as desired.
2. Navigate to the Calibrate screen. See Screen Navi-
gation Diagram on page 82 in the Appendix A User Interface Display section.
NOTE: PGM systems are calibrated at the factory. Per-
form calibration after pump maintenance or during troubleshooting (see page 29 for troubleshooting matrix).
3. Press the Enable Calibration button.
4. Weigh one disposable container and tare the scale.
5. Place container below dispense tip.
15. Enter the volume into the High Speed Calibration
Actual Volume input box.
16. Press the Done button.
17. If desired, press to navigate to the Main
screen.
6. Press the Start Low Speed Calibration
button.
7. Weigh the container.
8. Divide the weight of the dispensed material by the
specific gravity to determine the volume.
9. Enter the volume into the Low Speed Calibration
Actual Volume input box.
10. Weigh a second disposable container and tare the
scale.
11. Place container below dispense nozzle.
12. Press the Start High Speed Calibration
button.
13. Weigh the container.
14. Divide the weight of the dispensed material by the
specific gravity to determine the volume.
243A5185B
Page 25
Operation
Dispense from Maintenance
Screen
1. Navigate to the Maintenance screen. See Screen
Navigation Diagram on page 82 in the Appendix
A - User Interface Display section.
2. Select Manual Control Mode .
3. Select Bead or Shot from the Manual Mode Option.
Manually Dispense Fluid
1. Press and verify the dispense valve
opens.
2. Continue to press as long as needed to
load or dispense material. Release to stop dispensing.
Automation Control (Normal)
Operation
During automation control (normal operation) the PGM
automatically dispenses when it receives a command
from the automation unit.
NOTE: See Appendix B - I/O on page 98.
To enter Auto mode, select Auto (A) Control
Mode.
Typical Automation Cycle
In order for the system to run it must be in Auto mode.
Before a cycle begins the robot outputs should have the
following values:
•Job Complete: 0
•Dispense Trigger: 0
A typical cycle consists of the following dispensing
sequence.
3. If desired, press to navigate to the Home
screen.
1. The robot checks that Dispenser Ready signal is set
to On (High). If On, a cycle can begin.
2. If command source is set to Remote, robot sends
0-10 VDC Flow Rate signal.
NOTE: See Setup Screen 1 information in the
Appendix A - User Interface Display section beginning on page 82.
3. Robot turns on dispense trigger.
4. PGM turns on In Cycle.
5. Robot removes dispense trigger.
6. If Job Complete is set to Remote, robot turns on Job
Complete.
7. Robot removes Job Complete before starting the
next cycle.
NOTE: In the event of a deviation alarm, the Dispense Ready signal will remain on along with the
alarm signal. In the event of an error alarm, the Dispense Ready signal will turn off and the alarm signal
will remain on.
3A5185B25
Page 26
Pressure Relief Procedure
Pressure Relief Procedure
Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, follow the
Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or servicing the
equipment.
1. Shut off the fluid supply to the PGM inlet block.
2. If equipped, place a waste container beneath the
fluid drain valve under the filter.
3. Place a waste container beneath the dispense
valve.
4. Slowly open the drain valve at each fluid filter to
relieve fluid pressure. Close valve when pressure
gauge reads zero.
5. Navigate to the Maintenance screen. See Screen
Navigation Diagram on page 82 in the Appendix
A - User Interface Display section.
6. Perform the following steps to perform a low flow
dispense:
a. From the Mode drop-down menu, select Bead
mode.
b. Enter the minimum flow rate for your system.
For example, 12 cc/min or 40 cc/min depending
on the size of the gear meter.
c. Press or the Purge button on the
control enclosure to begin the low flow dispense.
d. Continue to dispense until the inlet pressure on
the PGM is near zero.
e. Visually locate the plug installed at the back of
the inlet block.
f.Place a container under the plug and slowly
remove the plug to relieve remaining inlet pressure.
7. In maintenance mode, select Open Dispense Valve
Control mode, which opens
the dispense valve. Press the manual dispense but-
ton until fluid flow stops.
263A5185B
Page 27
Pressure Relief Procedure
Dispense Valve
Air Solenoid
8. If the dispense device cannot be actuated from the
control center, refer to F
IG. 16 and perform the fol-
lowing steps to open the dispense valve and relieve
fluid pressure:
a. Manually actuate the plunger on the solenoid,
that opens the dispense valve to relieve fluid
pressure. Refer to F
IG. 16.
b. Continue actuating the plunger until all pressure
is purged from the system between the needle
and dispense valve before proceeding to the
next step.
9. If you suspect that a valve, hose, or dispense nozzle
is clogged or that pressure has not been fully
relieved:
a. Very slowly remove the dispense tip, clean the
orifice, and continue relieving pressure as
described in steps 6-8.
b. If this does not remove the obstruction, very
slowly loosen the hose end coupling to relieve
pressure gradually, then loosen the coupling
completely. Clear the valves or hose. Do not
pressurize the system until the blockage is
cleared.
10. Shut off power and air to the fluid supply system.
FIG. 16: Dispense Valve Air Solenoid
3A5185B27
Page 28
Shutdown
Shutdown
1. Press the Stop button. See FIG. 17.
2. Shut off the material supply to the gear meter/meter.
3. Shut off heat to PGM. See related manuals section
for Therm-O-Flow manual and Accessory Heat Control.
4. For heated systems, open the dispense valve over a
waste container while the system is cooling down.
This will prevent a pressure build-up caused by fluids or gases expanding from the heat.
5. Shut off power and air to the fluid supply system.
6. Turn off the main power supply.
FIG. 17: Stop Button
283A5185B
Page 29
Troubleshooting
Troubleshooting
NOTE: Check all possible solutions in the chart
below before you disassemble the system.
Refer to Supply Systems manual for additional troubleshooting; refer to Related Manuals on page 3. Also
refer to Error Codes and Troubleshooting, page 32.
PGM Fluid Assembly
ProblemCauseSolution
No Inlet PressureNo air pressure on supply systemVerify supply system pressure
Leak in supply systemCheck supply lines and connections
False signal being sent to controlCheck inlet pressure sensor output;
verify that it corresponds to zero
pressure; replace sensor and/or
amplifier
Leak at PGM drive shaftReplace drive shaft seals
No Outlet PressureDispense motor not rotatingRefer to Error code section of the
manual; Cycle power and perform
startup
Dispense Off delay set too longVerify Dispense valve delays in
setup screens
Dispense valve solenoid stuck
open
False signal being sent to controlCheck outlet pressure sensor out-
High Outlet PressureBlocked dispense tipReplace dispense tip
Flow rate too high for applicationdecrease flow rate
Dispense valve On delay set too
long
Dispense valve solenoid stuck
closed
3A5185B29
Verify function of dispense valve
put; verify that it corresponds to zero
pressure; replace sensor and/or
amplifier
Verify Dispense valve delays in
setup screens
Verify function of dispense valve
Page 30
Troubleshooting
Dispense pattern too lightSupply pressure too lowVerify inlet pressure needed for flow
rate
Flow rate too high for applicationPerform dispense weight verifica-
tion, see Calibration procedure on
page 24; Lower flow rate and repeat
Measured flow does not match
command
Supply pressure too lowVerify inlet pressure needed for flow
rate
Flow rate too high for applicationPerform dispense weight verifica-
tion, see Calibration procedure on
page 24; Lower flow rate and repeat
Gear meter is not calibratedPerform calibration; Perform weight
verification, see Calibration procedure on page 24
Gear meter is worn or damagedPerform weight verification, see Cal-
ibration procedure on page 24; if
weights are not repeatable repair or
replace gear meter
Dispense Valves
ProblemCauseSolution
Valve not openingAir not getting to open portVerify air pressure solenoid
No Dispense Trigger signal from
automation unit
Valve not shutting offAir not getting to close port (except
AutoPlus valve)
Dispense Trigger signal from automation unit is on
Sluggish open/closeAir pressure lowVerify air pressure is above 60 psi
Errors can be viewed from the Home screen or from the
Alarm View screen.
There are three levels of errors: alarms, deviations, and
advisories. Alarms are critical and require immediate
correction; therefore the system automatically shuts
down. Deviations are important and require attention but
not immediately. Advisories are not critical but still
require attention.
NOTE:
•Errors set the dispenser ready signal LOW.
Clear Errors and Reset Control
Unit
From the Alarm View screen, perform the following
steps to clear an error before restarting the control unit:
1. Press Acknowledge All List
2. Press Clear All Alarms
NOTE: Acknowledging alarms does not clear them.
NOTE: See the Configure Errors section on page 21.
•Advisories and deviations do not set the dispenser
ready signal LOW.
Diagnose Errors
See Error Codes and Troubleshooting for valid error
codes, possible causes, and solutions.
3A5185B31
Page 32
Errors
Error Codes and Troubleshooting
Error
No.
1Control Power OffControl power has
2Inlet Pressure Devia-
3Inlet High Pressure
4Inlet Low Pressure
5Outlet Pressure Devi-
Error NameError Description
PGM Control Errors
been removed
Inlet material pres-
tion
Error
Error
ation
sure outside limits
Inlet material pressure above max limit
Inlet material pressure below min limit
Outlet material pressure outside limits
Error
Type
AdvisoryStop button or
DeviationFeed pressure set
AlarmFeed pressure too
AlarmFeed pressure too
DeviationBack pressure is
CauseSolution
E-stop
too high or too
low. Limits are not
set correctly
high. Limits are
not set correctly.
low. Limits are not
set correctly.
too high or too
low. Limits are not
set correctly.
Press Control Power
button
Verify pressure limits
in Setup Screen 5.
Verify supply pressures during dispense.
Verify pressure limits
in Setup Screen 5.
Verify supply pressures during dispense.
Verify pressure limits
in Setup Screen 5.
Verify supply pressures during dispense.
Verify pressure limits
in Setup Screen 5.
Verify outlet pressures during dispense.
6Outlet High Pressure
Error
7Outlet Low Pressure
Error
8Inlet Max Pressure
Fault - Relieve Pressure and Cycle Power
Outlet material pressure above max limit
Outlet material pressure below min limit
Inlet material pressure exceeds max
rated pressure
AlarmBack pressure is
too high. Limits
are not set correctly.
AlarmOutlet pressure
too low. Limits are
not set correctly.
AlarmFeed system pres-
sure is set too
high. Pressure
sensor damaged.
Verify pressure limits
in Setup Screen 5.
Verify outlet pressures during dispense.
Verify pressure limits
in Setup Screen 5.
Verify outlet pressures during dispense.
Lower flow rate;
reduce outlet pressure drop; Verify
material temperature.
Lower flow rate;
reduce outlet pressure drop; Verify
material temperature.
Cycle Power Lower
flow rate; reduce outlet pressure drop;
Verify material temperature.
13Pre-Charge TimeoutPre-Charge Pressure
was not reached
after dispense
14High Pressure Inter-
lock OFF
15Dispense Valve Open
(Auto Default)
16Calibration is enabled
complete calibration
Pressure limit is
bypassed
Dispense valve is
open
Calibration mode
enabled
procedure
17Drive Fault, Cycle
Power
18Calibration out of
range
Motor drive is dis-
abled
Calibration values
are out of range or
flow rate is too low
for current K factor
AdvisoryPre-Charge value
not set correctly.
AdvisoryPressure sensors
are disabled.
AdvisoryDispense valve
open button has
been selected.
AdvisoryCalibration
enabled selected
from the calibrate
screen.
AlarmVarious condi-
tions.
AdvisoryImproper calibra-
tion, flow rate too
low, or pump
wear.
Set Pre-Charge to
zero. Monitor outlet
pressure; Adjust
Pre-Charge pressure.
Contact Graco customer service.
From the Maintenance screen select
Dispense valve Auto.
Complete calibration
procedure.
Cycle Power verify
motor torque during
dispense.
Perform calibration
procedure.
3A5185B33
Page 34
Maintenance
Maintenance
Prior to performing any maintenance procedures, follow
the Pressure Relief Procedure on page 26.
Maintenance Schedule
The following tables list the recommended maintenance procedures and frequencies to operate the equipment
safely. The maintenance is divided between mechanical and electrical tasks. Maintenance must be performed by
trained personnel per this schedule to assure safety and reliability of the equipment.
Mechanical
OperatorMaintenance Person
TaskDailyWeeklyMonthly
Inspect system for leaks
Depressurize fluid, after opera-
tion
Remove heat from system,
after operation
Inspect filter (234967) bowls
and drain
Check hoses for wear
Check/tighten fluid connections
Check/tighten air connections
Lubricate dispense valves*
Replace gear meter seals
Rebuild dispense valve*
Replace air filter
Replace Solenoid
Replace gear meter drive shaft
Replace gear head
* Check component manual for more detailed maintenance information.
3-6
months
or
125,000
cycles
18-24
months
or
500,000
cycles
36-48
months
or
1,000,000
cycles
As
Required
Electrical
TaskWeekly
Check cables for wear
Verify cable connections
Verify operation of “System Stop” button
* Check Component Manual for more detailed maintenance information.
343A5185B
Page 35
Repair
Repair
NOTE: Refer to Parts section beginning on page 49
for part reference number identification.
Gear Meter Assembly
This section describes how to remove and replace components on the gear meter assembly.
Prepare Gear Meter Assembly for Repair
Replace Servo Motor or Gear Head
Replacing either the Servo Motor or Gear Head requires
the following procedure.
Remove Servo Motor and Gearhead
1. Prepare Gear Meter Assembly for Repair,
page 35.
2. Remove support gussets (9, 1106).
3. Remove bolts (1, 1103) connecting top mounting
plate (8, 1105) to vertical mounting plate (10, 1107).
4. Remove servo motor, gear head, and top plate.
Coupling (303, 1203) will separate.
5. Remove coupling half.
6. Remove 4 screws (3, 1110) that mount to plate to
gear head.
7. Remove gear head coupling covers (302a, 1202a).
8. Loosen gearhead coupling on gearhead shaft.
FIG. 18
1. Perform Pressure Relief Procedure, page 26.
2. Disconnect main power at the control box.
3. If present, remove power from the heat control.
4. Remove servo power cable and servo feed back
cable. See gear meter assembly parts; see Parts
section starting on page 49.
5. Remove heat cables.
6. Remove pressure transducer cables and dispense
valve cable.
7. Remove supply air pressure from solenoid.
8. Remove front guard.
9. Remove material hoses if necessary.
9. Remove 4 bolts connecting servo motor to gearhead.
10. Remove servo motor from gear head.
3A5185B35
Page 36
Repair
SEE DETAIL
A
DETAIL
A
SCALE
3/2
Install Servo Motor or Gearhead
1. Remove key from motor shaft.
NOTICE
Use caution when handling servo motor to prevent
damage. Do not use tools that could cause damage.
2. Slide the gear head. bushing into the drive coupling
and align slots in drive coupling and bushing. See
IG. 19.
F
FIG. 19
3. Rotate the drive coupling to align clamping bolts
with access holes.
4. Place motor on work surface with motor shaft facing
NOTE: Orient servo motor so that the motor connections do not interfere with material inlet hose.
9. Install gussets with shoulder bolts (5, 1104).
straight up then mount the gear head. Mounting the
gear head in any other orientation will usually lead
to misalignment and excessive noise.
Remove Coupling
1. Prepare Gear Meter Assembly for Repair,
5. Pre-torque drive coupling to 0.4 N•m (4 in-lb).
6. Bolt gear head to the motor with fasteners provided.
7. Final toque drive coupling to 8.5 N•m (76 in-lb) in
three steps increasing torque each time.
8. Do not tighten coupling to gear head output shaft
page 35.
2. Remove support gussets (9, 1106).
3. Remove bolts (1, 1103) connecting top mounting
plate (8, 1105) to vertical mounting plate (10, 1107).
4. Remove servo motor, gear head, and top plate.
until drive assembly is mounted in frame.
363A5185B
Page 37
Repair
Gap
5. Loosen clamping bolts on each side of coupling and
remove coupling.
NOTE: Pump shaft key may fall out during coupling
removal. Secure pump shaft key until coupling is
replaced.
Install Coupling
5. Separate coupling until proper gap is created. F
21. See the following table.
Pump Size
cc / revolutionGap (mm)
618
2020
FIG. 21
IG.
FIG. 20
1. Slide coupling onto gear head output shaft. Tighten
coupling bolt just enough to hold it’s position.
2. Align pump shaft key and slide coupling onto pump
shaft. Tighten coupling bolt just enough to hold it’s
position.
3. Attach servo motor, gear head, and top plate to
pump assembly. See F
IG. 20.
4. Slide drive coupling so it is evenly spaced between
pump and gearhead. Both sides of coupling should
slide easily on each shaft. If coupling does not slide
freely, loosen pump bolts (103, 1303) and align
pump until coupling moves freely. Tighten pump to
pump block to 430-480 in-lb (48.58-54.23 N•m).
6. Tighten coupling bolts to the following torques:
Pump Size
cc / revolution
Torque,
in-lb (N•m)
6132 (15)
20309 (35)
7. Install gussets with shoulder bolts (5, 1104).
3A5185B37
Page 38
Repair
Dispense Valve
Air Solenoid
Remove Dispense Valve
1. Prepare Gear Meter Assembly for Repair,
page 35.
2. Manually actuate solenoid to ensure pressure has
been removed.
4. Connect air lines.
5. Apply air to the solenoid.
6. Manually shuttle solenoid, see F
pense valve is open when solenoid is depressed.
IG. 22. Verify dis-
Replace Solenoid
1. Prepare Gear Meter Assembly for Repair,
page 35.
2. Disconnect solenoid cable. Remove mating
screws (405) from gusset.
3. Remove the dispense valve solenoid (410) and
replace it with a new solenoid.
4. Reconnect solenoid cable.
Gear Meter O-Ring Replacement
Refer to Parts section starting on page 49 for o-ring kits.
1. Prepare Gear Meter Assembly for Repair,
page 35.
FIG. 22: Dispense Valve Air Solenoid
3. Verify air supply is off.
4. Remove air lines from dispense valve.
5. Remove four dispense valve mounting bolts and
remove dispense valve.
NOTE: For remote mount dispense valves, remove
supply hose at inlet block of dispense valve.
6. Refer to dispense valve manual for complete dispense valve repair instructions; refer to Related
Manuals on page 3.
Install Dispense Valve
1. For direct mounted dispense valves, replace
o-ring (409) if necessary.
2. Align dispense valve with mounting pins on front
block.
2. Remove pump block shoulder bolts (4, 1102). See
F
IG. 23.
NOTICE
Pump section should be fully supported to prevent
damage being dropped. It is recommended that the
gear meter assembly be located on a work bench for
service.
3. Install four mounting bolts (408) torque to
50-60 in-lb (5.6-6.7 N•m).
383A5185B
Page 39
Repair
4, 1102
*107, 1306
105,
1305*
102, 1302
104, 1304
*Provided in o-ring kit 24E626.
103,
1303
106,
1304
109,
1308
412
407
108,
1309
3. Remove drive assembly. See FIG. 23.
12. Replace pump block o-rings (106, 104; 1304). See
F
IG. 24.
FIG. 23
4. Perform Remove Dispense Valve procedure.
5. Loosen 4 bolts (407) and remove front block (412).
6. Loosen 4 bolts and remove inlet block (110, 1302).
16. Replace all electrical connections and fluid connections before applying fluid pressure and power.
3A5185B39
Page 40
1614
1611
1612†
1611
1612†
1613
1601
1602
1607
1608
1615
1605
1609
1604
1606
1603
1610
† Parts included in kit 24E607.
Parts included in kit 24E827.
Parts included in kit 24E826.
(P/N: 125657)
(P/N: 125656)
Repair
PGM-6 Pump Repair
FIG. 25: PGM-6
403A5185B
Page 41
Repair
PGM-6 Pump Disassembly
1. Prepare Gear Meter Assembly for Repair,
page 35.
2. Refer to Gear Pump Maintenance Guide on
page 47 for special notes regarding gear pump
repair.
3. Remove four pump block shoulder bolts (1102).
NOTICE
Pump section should be fully supported to prevent
damage being dropped. It is recommended that the
gear meter assembly be located on a work bench for
service.
4. Remove drive assembly. See F
NOTICE
IG. 23.
NOTE: Notches on the pump plates can be used to
separate the plates.
9. To remove the drive shaft (1605) from the bottom
plate (1603) press the shaft and gear from the bottom pump plate towards the coupling end.
10. To remove the drive gear (1607) from the drive shaft
(1605), support the drive gear at the lower end to
allow the shaft to be pressed through the gear from
the top or coupling end. Make sure to leave clearance for the drive key.
11. The stud (1606) for the driven gear (1608) is press
fit into the back plate (1603) and need not be
removed if not worn.
NOTICE
The PGM pump design relies on a lap fit between
components for performance and sealing. Be careful
not to drop the gears (1607, 1608) or damage the
mating surfaces of the pump plates (1601, 1603) and
gear case (1602). To prevent damage, do not use pliers or screwdrivers to remove the gears.
Thicker materials may require heating prior to disassembly. Do not expose the pump to thermal shock.
Raise temperature at a maximum rate of 180°F
(100°C) per hour. Do not exceed 400°F (204°C).
Exceeding this temperature could promote leakage in
the pump. Gradually cool the pump to room temperature.
5. Remove seal retainer fasteners (1614) and seal
retainers (1611).
6. Remove pump dowel pins (1610) using an arbor
press.
NOTICE
Do not use a hammer to remove dowel pins as this
will damage the pump.
7. Remove the pump plate screws (1613).
8. Separate the pump front plate (1601), gear case
(1602) and back plate (1603).
12. Clean all components thoroughly before reassembly. The use of an ultrasonic cleaner is recommended.
3A5185B41
Page 42
Repair
1515,
1614
1512,
1611
*1513,
1612
Pump Body
PGM-6 Pump Assembly
NOTICE
Do not hammer or force components together or damage may occur. Parts will drop into place if properly
cleaned and aligned. Use of a compatible oil is recommended during assembly.
1. Place the back plate (1603) on a table inside facing
up.
2. Place the driven gear (1608) on its stud (1606).
3. Place gear case (1602) onto back plate (1603).
Check orientation of dowel pin holes to assure they
align with the ones in the back plate.
5. Install drive gear (1607) and drive shaft (1605) into
back plate (1603).
6. Position top plate (1601) over drive shaft (1605) and
place onto gear case (1602).
12. Install new seals (1612). See F
FIG. 26: Seal Locations
IG. 26 and FIG. 27.
7. Rotate the gears several times to ensure free rotation.
8. Insert the dowel pins (1610) and rotate the gears
several times to ensure free rotation.
NOTE: Dowel pins are not a press fit and may be
installed using a plastic hammer if necessary.
9. Install pump plate screws (1613) and tighten to
85-105 in-lb (9.6-11.8 N•m).
10. Rotate the gears several times to ensure free rotation.
11. Apply a heat resistant, non-evaporating lubricant to
the seal area of the drive shaft (1605).
FIG. 27: Seal Orientation
13. Install seal retainers (1611) and seal retainer
screws (1614). Tighten screws to 85-105 in-lb
(9.6-11.8 N•m).
14. Align pump shaft key and slide coupling onto pump
shaft. Tighten coupling bolt just enough to hold it’s
position.
15. Attach servo motor, gear head, and top plate to
pump assembly. See F
IG. 20.
16. Separate coupling until proper gap is created. See
F
IG. 21.
17. Tighten pump block mounting shoulder bolts to
frame (1102).
18. Replace all electrical connections and fluid connections before applying fluid pressure and power.
423A5185B
Page 43
Repair
3A5185B43
Page 44
Repair
1515
1512
1513†
1512
1513†
1511
1510
1504
1508
1516
1514
1509
1501
1502
1506
1503
1507
1505
† Parts included in kit 24E619.
Parts included in kit 24E825.
Parts included in kit 24E824.
(P/N: 125655)
(P/N: 125654)
PGM-20 Pump Repair
FIG. 28: PGM-20
443A5185B
Page 45
Repair
PGM-20 Pump Disassembly
1. Prepare Gear Meter Assembly for Repair,
page 35.
2. Refer to Gear Pump Maintenance Guide on
page 47 for special notes regarding gear pump
repair.
3. Remove six pump block shoulder bolts (4).
NOTICE
Pump section should be fully supported to prevent
damage being dropped. It is recommended that the
gear meter assembly be located on a work bench for
service.
4. Remove drive assembly. See F
NOTICE
IG. 23.
be needed. These will provide clearance for the
drive shaft key (1508) and the top plate (1501).
10. Support pump top plate (1501) and press drive shaft
(1504) through drive gear (1506). Stop when there
is enough clearance between the drive gear (1506)
and top plate (1501) to insert one spacer. Be sure to
allow clearance for drive key (1508).
11. Continue pressing the drive shaft (1504) and inserting spacers until the shaft is free from the drive gear
(1506).
12. The stud (1505) for the driven gear (1507) is press
fit into the back plate (1503) and need not be
removed if not worn.
NOTICE
The PGM pump design relies on a lap fit between
components for performance and sealing. Be careful
not to drop the gears (1607, 1608) or damage the
mating surfaces of the pump plates (1601, 1603) and
gear case (1602). To prevent damage, do not use pliers or screwdrivers to remove the gears.
Thicker materials may require heating prior to disassembly. Do not expose the pump to thermal shock.
Raise temperature at a maximum rate of 180°F
(100°C) per hour. Do not exceed 400°F (204°C).
Exceeding this temperature could promote leakage in
the pump. Gradually cool the pump to room temperature.
5. Remove seal retainer fasteners (1515) seal retainers (1512), spacers (1510) and (1511).
6. Remove pump dowels (1509) using an arbor press.
NOTICE
Do not use a hammer to remove dowel pins as this
will damage the pump.
7. Remove the pump plate screws (1514).
8. Separate the pump front plate (1501), gear case
(1502) and back plate (1503).
NOTE: Notches on the pump plates can be used to
separate the plates.
13. Clean all components thoroughly before reassembly. The use of an ultrasonic cleaner is recommended.
9. To remove drive shaft (1504) from the drive gear
(1506) several flat spacers 1/8 in. (3 mm) thick will
3A5185B45
Page 46
Repair
PGM-20 Pump Assembly
NOTICE
Do not hammer or force components together, or
damage may occur. Parts will drop into place if properly cleaned and aligned. Use of a compatible oil is
recommended during assembly.
1. Place back plate (1503) on a table inside face up.
2. Install the driven gear (1507) on stud (1505).
3. Place gear case (1502) onto back plate (1503).
Check orientation of dowel pin holes to assure they
align with the ones in the back plate.
4. Place the top plate (1501) on its edge on a table.
Pass the drive shaft (1504) through the top plate
from the seal side so that the boss on the shaft rests
on the top plate.
5. Rotate the drive shaft (1504) to position the drive
key slot at the top. Insert the drive key (1508) and
driven gear (1506).
14. Align pump shaft key and slide coupling onto pump
shaft. Tighten coupling bolt just enough to hold it’s
position.
15. Attach servo motor, gear head, and top plate to
pump assembly. See F
IG. 20.
16. Separate coupling until proper gap is created. See
F
IG. 21.
17. Tighten pump block mounting shoulder bolts to
frame (4).
18. Replace all electrical connections and fluid connections before applying fluid pressure and power.
6. Grasp the top plate (1501), drive shaft (1504) and
driven gear (1506) to prevent them from separating
and carefully lower them into position onto the gear
case (1502).
7. Rotate the gears several times to ensure free rotation.
8. Insert the dowel pins (1509) and check again for
free rotation.
NOTE: Dowel pins are not a press fit and may be
installed using a plastic hammer if necessary.
9. Install pump plate screws (1514) and tighten to
85-105 in-lb (9.6-11.8 N•m).
10. Rotate the gears several times to ensure free rotation.
11. Apply a heat resistant, non-evaporating lubricant to
the seal area of the drive shaft (1504).
12. Install new seals (1513). See F
IG. 26 and FIG. 27.
13. Install spacers (1510, 1511), seal retainers, (1512)
and seal retainer screws (1515). Tighten screws to
85-105 in-lb (9.6-11.8 N•m).
463A5185B
Page 47
Gear Pump Maintenance Guide
Review these guidelines prior to performing any maintenance on the pumps.
•Do not run pump dry.
•Do not pull from a vacuum or negative suction head.
•Do not flush with water or other non-lubricating fluid.
•Do not pump corrosives, abrasives and/or fluids carrying particles that may harm the pump.
•Do not heat or cool pump faster than 180°F (100°C)
per hour.
•Do not drop disassembled parts on a hard surfaces
and do not let parts knock together.
•Never strike the pump parts with an iron hammer.
The parts are designed to drop in place if properly
aligned. Use arbor press to insert or remove press
fit components.
Repair
•Do not use pliers to lift the gears.
•Never use a screwdriver to pry the gears upward.
•Apply clean oil or compatible fluid during assembly.
3A5185B47
Page 48
Repair
Installing new heater units and RTD sensors
1.Prepare Gear Meter Assembly for Repair, page 35.
2. Disconnect the power cables from the heaters.
3. Remove two M3 screws to remove the kit from the
inlet block.
6. Remove the heaters and sensor from the block.
NOTICE
The heaters may be difficult to remove and removal
depends on the system type. To ensure proper heat
transfer and to avoid premature heater failure,
System with through hole:
Press out the heater element using an 0.125” (3 mm)
diameter pin.
System without through hole:
Drill out the heater element using a 5mm (0.203 in.)
drill bit. Do not increase the hole diameter.
7. Clean any residue from both heater and sensor
ports.
8. Installation is the reverse of removal.
4. Remove two M6 screws to remove the kit from the
pump block.
5. Remove the two M8 heater nuts and M6 sensor nut.
X8
PIN DESCRIPTION
1FAULT
2FAULT
3DC COM
4ENABLE
5IN 6
6IN 5
7A GND
8ANALOG OUT +
9ANALOG IN 10 ANALOG IN +
365458
110
HARNESS
17S930
516
525
523
521
518
514
512
510
508
506
504
502
500
517
524
520
522
519
515
513
511
509
507
505
503
501
534
541
539
536
532
530
528
526
535
542
538
540
537
533
531
529
527
543
544
549
547
545
548
546
DRIVE-1
FIG. 37: Schematics, Page 9 of 10
723A5185B
Page 73
Schematics
TO GROUND
DIST. BAR #1
STAR WASHER
GROUND LUG
INCOMING GROUND
PROTECTIVE EARTH
SUBPLATE
PE GROUND STUD GRN/YEL
DRIVE-1 PE
DRIVE-1 X3-1
PLACE NEAR
GROUND DIST BAR
GROUNDING NOTES:
1. GROUND ALL DISTRIBUTION BARS.
2. GROUND ALL DOORS.
3. DO NOT JUMPER GROUND WIRES.
PE
PLACE NEAR
GROUND LUG
FIL-2
FIL-1
585
595
593
591
587
555
583
581
579
577
575
573
571
569
567
565
563
559
561
557
553
551
586
594
589
592
588
556
584
582
580
578
576
574
572
570
568
566
564
560
562
558
554
552
550
598
596
599
597
590
GROUND DIST. BAR
FIGURE 2
NTS
FIGURE 1
NTS
FIG. 38: Schematics, Page 10 of 10
3A5185B73
Page 74
Accessory Parts
Accessory Parts
Automation Interface Cable Assembly
The cable length of automation interface cable assembly 24D824 is 40 ft (12.2 m). This figure shows the cable and
identifies the cable interface signals. See Appendix B - I/O on page 98 for wiring details. See Appendix C - Theory
of Operation on page 101.
Pin #Wire #ColorDescription
1208BlackDispense Start
2210RedJob Complete
3SPAREWhiteN/C
4SPAREWhite/BlackN/C
5125Orange24 VDC from PGM
6130Blue24 VDC common
7404Red/BlackAnalog flow command
8130GreenAnalog common
NOTE: This kit is intended for Therm-O-Flow units built prior to 2016, which includes part numbers
that start with 98xxxx. See Accessories on page 5 for the latest version of the Therm-O-Flow
which includes part number UHxxxx.
Dynamic Regulator Setup and Installation
(P/N 98****) 24E575
1. Remove air pressure from Therm-O-Flow supply
system. See Pressure Relief Procedure in manual
311208.
2. Install dynamic regulator kit. See F
page 77.
3. Apply air to the Therm-O-Flow supply. Check for air
leaks.
4. Set the secondary regulator for a low operating
pressure, for example 20-25 psi.
5. Adjust the panel mount Therm-O-Flow regulator to
zero psi.
6. Connect the dynamic regulator cable from the
Therm-O-Flow to the PGM control box.
7. Navigate to the Supply Pump screen. See Appen-dix A - User Interface Display starting on page 82
for Supply Pump screen information.
8. Select ON mode for the Primary or Tandem Pump
drop-down menu.
9. Set the appropriate press for the panel mount regulator on the Therm-O-Flow. For example, 30-40 psi.
10. Select AUTO mode for the Primary or Tandem
Pump drop-down menu.
IG. 39 on
11. Verify operation of the new regulator and adjust
pressure as needed to achieve a maximum static
pressure of 1500 psi (103 bar) when the system is
not dispensing.
763A5185B
Page 77
Dynamic Regulator Installation 24E575
Detail A
3
1
6
2
4
11/16 in.
7/32 in.
5
diameter
7
8
Remove plug and attach supplied tubing to
regulator inlet.
Holes required for mounting. See detail A.
5/32 in. tubing removed from Therm-O-Flow
regulator to be attached here.
Regulator pilot port will have an existing 5/32 in.
air line. This air line and its fitting are to be
removed from the regulator and replaced with
the fitting supplied with dynamic regulator.
The existing pilot tube will be connected to the
5/32 fitting on the diverting valve supplied with
24E575.
To Therm-O-Flow regulator pilot port.
Regulator inlet.
Thread existing air line with 1/2 in. npt coupling
to 90° swivel fitting.
Attach to PGM control panel.
1234567
8
5/16 in.
Accessory Parts
F
IG. 39
The dynamic regulator kit is used to control the static
pressure of a Therm-O-Flow (98****). The PGM has a
maximum inlet pressure of 1500 psi. During dispense
the dynamic regulator kit will activate the normal regulator located on the front panel of the Therm-O-Flow.
When the system is idle the secondary regulator will
control static pressure.
3A5185B77
Page 78
Accessory Parts
1001
1002
1003
1004
1005
1006
1018
1007
1016
1017
1009
1012
1014
1014
1015
1003
1013
1012
1011
1010
1009
1018
1008
NOTE: This kit is for the current series of Therm-O-Flow which contains part number UHxxxx.
Dynamic Regulator Setup and Installation
(P/N UH****) 25A055
1. Remove air pressure from Therm-O-Flow supply
system. See Pressure Relief Procedure in manual
334130.
Accessory Parts
2. Install dynamic regulator kit. See F
page 80.
3. Apply air to the Therm-O-Flow supply. Check for air
leaks.
4. Set the secondary regulator for a low operating
pressure, for example 20-25 psi.
5. Adjust the air motor regulator at the top of the air
tree to zero psi.
6. Connect the dynamic regulator cable from the
Therm-O-Flow to the PGM control box.
7. Navigate to the Supply Pump screen. See Appen-dix A - User Interface Display starting on page 82
for Supply Pump screen information.
8. Select ON mode for the Primary or Tandem Pump
drop-down menu.
9. Set the appropriate pressure for the air motor regulator at the top of the air tree on the Therm-O-Flow.
For example, 30-40 psi.
IG. 40 on
10. Select AUTO mode for the Primary or Tandem
Pump drop-down menu.
11. Verify operation of the new regulator and adjust
pressure as needed to achieve a maximum static
pressure of 1500 psi (103 bar) when the system is
not dispensing.
3A5185B79
Page 80
Accessory Parts
5
7
1
4
3
6
2
Disconnect red airline from air tree.
Remove pressure relief safety valve from air
tree.
Screw in the cross with adjustable air pressure
regulator into the pressure relief safety valve
hole.
Attach the dynamic regulator assembly to the
hose connection on the air tree.
Attach the red air hose to the dynamic regulator
assembly.
Attach the pressure relief safety valve to open
port on the cross fitting.
Attach to PGM control panel.
12345
6
7
Dynamic Regulator Installation
F
IG. 40
The dynamic regulator kit is used to control the static
pressure of a Therm-O-Flow (UH****). The PGM has a
maximum inlet pressure of 1500 psi. During dispense
the dynamic regulator kit will activate the normal regulator located on the front panel of the Therm-O-Flow.
When the system is idle, the secondary regulator will
control static pressure.
803A5185B
Page 81
EnDure Valve NozzlesHeater Nests
Accessory Parts
PartDescription
24E654 10 x 1.5 mm Ribbon Nozzle
24E655 1/8 in. Bead Nozzle
PartDescription
24E678 Heater Nest with Blank Insert
24E679 Heater Nest with Ported Insert
3A5185B81
Page 82
Appendix A - User Interface Display
Screen #1
Current Setup
Screen
Screen #2
Screen #3
Screen #4
Screen #5
Main
START MACHINE
Maintenance
Home
Calibrate
Robot I/O
Setup Screens Flow
Supply Pump
Setup Screens
Alarm Screen
Screen #6
Appendix A - User Interface Display
Screen Navigation Diagram
823A5185B
Page 83
Appendix A - User Interface Display
Key:
ANavigate to the Home screen
BNavigate to the Calibrate screen
A
B
Main Screen
Press the appropriate button to navigate to either the Home or Calibration screen. To access the Calibration screen,
select the login button and enter user “setup
.
” and password “PGM17”.
3A5185B83
Page 84
Appendix A - User Interface Display
Key:
CEnable Calibration button (Begin
Calibration)
DDone button (Finish Calibration)\
ECalibration Shot Time Input Box
FCalibration K Factor (Automatically
VNavigate to Robot I/O Screen
W Navigate to Setup Screens
XNavigate to Main Screen
YNavigate to Alarm Screen
ZNavigate to Supply Pump Screen
AA Navigate to Trend Screen
R
T
S
Y
U
X
W
AA
V
Z
O
P
Appendix A - User Interface Display
Manual Mode
In Manual Mode, the machine only accepts signals from
the User Interface touch screen and the physical buttons
on the machine. All signals from an External Control
Interface to initiate a shot will be ignored.
Automatic Mode
In Automatic Mode, the machine only accepts initiate
shot signals from an external machine. All signals to initiate a shot using the User Interface touch screen or the
physical buttons on the machine will be ignored.
The primary purpose of the bead scale is to be able to
quickly adjust volume dispensed to be able to find that
actual desired volume. Once the correct volume is found,
the flow rate should be adjusted accordingly.
Screens Navigation
Access to the Setup screens requires the setup password.
Flow Rate Display
The Home screen will display the commanded Flow Rate
from 1 of 3 sources:
Bead Scale
The bead scale function adjusts the quantity dispensed
by the scale percent value shown. For example, if the
system is setup to dispense 100 cc/min and the bead
scale setting is 110 then the machine will dispense
100 cc/min x 110% scale =110 cc/min.
3A5185B85
•1 - Maintenance Flow Rate (see Maintenance
Screen on page 86)
•2 - Auto Mode Display Flow (see Setup #2 Screen
on page 89)
•3 - Remote 0-10 VDC Command Flow (see Appen-dix B - I/O on page 98)
Page 86
Appendix A - User Interface Display
Key:
AB Enable Automatic Dispense Valve
Control
AC Open the Dispense Valve, Disable
Automatic Dispense Valve Control
AD Enable Bead Manual Mode
AE Enable Shot Manual Mode
AF Dispense Duration Input Box
AG Flow Rate Input Box
AH Manual Start Dispense
A
AC
AB
AG
AD
AF
AH
Q
AE
P
Maintenance Screen
Dispense Valve Control
Dispense Duration: This is the amount of time the
machine will dispense at the given flow rate. This value
When Automatic Dispense Valve Control is enabled, the
is only used in Shot Mode.
dispense valve will open and close as needed to dispense material.
Flow Rate: This is the rate at which the machine will
dispense for the given dispense duration.
When Open the Dispense Valve is selected, the dispense valve will open and remain open until Automatic
Dispense Valve Control is enabled.
Manual Start Dispense
After adjusting the settings, the user can press the Man-
Dispense Settings
Dispense Mode: Options include Bead and Shot.
•In Bead mode, dispensing begins when the initiate
shot button is pressed and dispensing ends when
the initiate shot button is released.
ual Start Dispense button (AH) to dispense material
using the current settings.
NOTE: This button performs the same function as the
manual purge button located on the control panel.
•In Shot mode, dispensing begins when the initiate
shot button is pressed and released. Dispensing
ends when the Dispense Duration (AF) elapses.
863A5185B
Page 87
Robot I/O Screen
A
Appendix A - User Interface Display
Overview
This screen is for settings related to an external
machine setup to control the dispense operation of this
system. See Appendix B - I/O on page 98 for more
information.
Robot Outputs
These are signals sent by the external machine when
the related action should occur. The Job Complete signal is sent to stop the In Cycle signal. The Dispense
Trigger is sent to begin dispensing. The Command Voltage is a display of the voltage of the command cable
and is for troubleshooting only. See Appendix B - I/O
on page 98 for more information.
Robot Inputs
These are signals sent to the external machine to notify
it of system conditions. The Dispense Ready signal tells
the external machine that the system is ready to dispense and a dispense can be initiated. The No Alarm
signal tells the machine that there are currently no active
alarms. The In Cycle signal tells the external machine
that the system is currently busy so dispensing cannot
be initiated.
NOTE: Dispense Ready remains on while in Auto Mode.
If a deviation alarm occurs the Dispense Ready and
Alarm signal will remain ON. If an error alarm occurs the
Dispense Ready will be removed.
3A5185B87
Page 88
Appendix A - User Interface Display
A
Setup #1 Screen
#1 to #6 Buttons
Press to navigate to the Setup Screen with that number.
For example, press #3 to navigate to Setup Screen #3.
Command Value Source
Command Values can be controlled by the user-interface touch screen or by an external machine connected
to the system via the External Control Interface.
Run Mode Bead Adjust
When this option is enabled the Bead Scale function
appears on the Home Screen. See the Home Screen
on page 85 for more information.
Job End Mode
The In Cycle signal can be dropped when the dispense
trigger is removed when Display is selected.
If Remote is selected the Job Complete signal is
required to remove the In Cycle signal.
Job End Delay (sec)
When Job End mode is set to Display the In Cycle signal
is removed after the time in this field.
883A5185B
Page 89
Setup #2 Screen
A
Appendix A - User Interface Display
Overview
The Dispense Mode, Flow Rate, and Dispense Duration
settings apply to Automatic Control Mode
only. Values changed on this
screen independent of changes made on the Maintenance screen.
The Bead Scale value is a duplicate to the Bead Scale
setting on the Home Screen, which can be enabled or
disabled from the Setup #1 screen. See Setup #1
Screen on page 88 for more information.
Fixed Command cc/min
Flow rate can be entered here. This field is only used
when command value source is set to Display on Setup
Screen 1. See Setup #1 Screen on page 88 for more
information.
Pre-Charge
This is the pressure between the meter and the dispense valve when the dispense valve is closed. If the
pre-charge setting is non-zero then, immediately after
dispensing, the gear meter will continue to rotate after
the dispense valve closes until the pre-charge pressure
value is achieved. The maximum Pre-Charge value is
2500 psi (17.2 MPa, 172 bar).
Larger values for the On Delay setting lead to larger
pressures in the system. If a value too large is input,
the machine could over-pressurize leading to ruptured components and serious injury.
#1 to #6 Buttons
Press to navigate to the Setup Screen with that number.
For example, press #3 to navigate to Setup Screen #3.
3A5185B89
Page 90
Appendix A - User Interface Display
A
Setup #3 Screen
#1 to #6 Buttons
Press to navigate to the Setup Screen with that number.
For example, press #3 to navigate to Setup Screen #3.
Delay Settings
Larger values for the On Delay setting lead to larger
pressures in the system. If a value too large is input,
the machine could over-pressurize leading to ruptured components and serious injury.
The Delay Settings affect the timing of the Dispense
Valve opening and closing when a shot is initiated.
The On Delay is the amount of time, in milliseconds,
between a shot being initiated and the dispense valve
opening. If the On Delay is set to 100 the machine will
wait 100 milliseconds after a shot is initiated before
opening the dispense valve. This will lead to a pressure
build up between the meter and dispense valve until the
dispense valve opens.
The Off Delay is the amount of time, in milliseconds,
between a shot completing and the dispense valve closing. If the Off Delay is set to 100 the machine will wait
100 milliseconds after a shot is complete before closing
the dispense valve.
Drive Information
Motor Torque
Display motor torque during dispense. If motor torque
climbs above continuous torque an alarm is issued. See
Errors on page 31.
Cont. Torque
Continuous torque rating of the motor.
NOTE: The motor torque display is a good way to determine the maximum flow rate with a given viscosity.
903A5185B
Page 91
Setup #4 Screen
A
Appendix A - User Interface Display
#1 to #6 Buttons
Press to navigate to the Setup Screen with that number.
For example, press #3 to navigate to Setup Screen #3.
Pump Settings
Snuff Back: This enables the gear meter to rotate in
reverse, immediately following dispensing, to pull material back from the dispense valve to minimize or eliminate material drooling. The Snuff Back Time and Snuff
Back Pump RPM are the settings used when Snuff Back
is enabled. These settings should be adjusted to work
best for your material.
NOTE: Not recommended for very viscous materials.
Pump Hour Totalizer: This field will record the total dis-
pense time on the machine in hours. This field is
non-resettable.
Pump Hour Meter: This field displays total dispense
time in hours. This field is resettable.
3A5185B91
Page 92
Appendix A - User Interface Display
A
Setup #5 Screen
Overview
This screen controls settings for the pressure sensors.
These values are used for triggering errors.
#1 to #6 Buttons
Press to navigate to the Setup Screen with that number.
For example, press #3 to navigate to Setup Screen #3.
Inlet, Outlet Offset
The inlet, outlet offset values are used to tune the pressure transducer. If the pressure transducers do not register zero pressure when there is no material in the
system, enter a value to shift the pressure value to zero.
For example, if 15 psi is shown, enter -15 psi to shift the
value to 0.
Min/Max Inlet/Outlet Limits
These limit values are used to set the acceptable range
of values for dispensing. If values are outside of this
range during dispensing the machine will issue an
alarm. See Errors on page 31.
PSI, BAR
Set the unit of measure for pressure system-wide.
923A5185B
Page 93
Setup #6 Screen
A
Appendix A - User Interface Display
Fault Settings
Error Reset: If set to Disable, errors cannot be reset. If
set to Enable, errors can be reset.
Inlet/Outlet Pressure, Drive Torque: If set to Error, an
error will be generated when the out-of-limit condition
occurs. The machine will be disabled until the error is
reset. If set to deviation, an error will be generated when
the out-of-limit condition occurs. The machine will not be
disabled until the error is reset.
If set to Deviation, an error will be generated when the
out-of-limit condition occurs. The machine will not be
disabled. See Errors on page 31.
3A5185B93
Page 94
Appendix A - User Interface Display
A
Supply Pump Screen
NOTE: This screen is used to control the optional
dynamic regulator kit for a Therm-O-Flow. See
Accessory Parts section on page 74 for additional
information on the dynamic regulator kit option.
Supply Pumps (Dynamic Analog Regulator)
Primary Supply Pump Mode
•Auto Mode: During normal operation this mode will
activate the dynamic regulator solenoid when the
dispense valve solenoid is activated.
•On Mode: This will activate the dynamic regulator
solenoid.
•Off Mode: The dynamic regulator option is disabled.
Secondary Supply Pump Mode
•Same control features as primary pump.
943A5185B
Page 95
Pressure Trend Screen
Key:
AI Navigate to the Torque Trend
screen.
A
AI
Appendix A - User Interface Display
Overview
The Pressure Trend screen allows the user to view both
inlet and outlet pressures in real time. The pressures
displayed on this screen are the same values shown on
the Home and Maintenance screens.
3A5185B95
Page 96
Appendix A - User Interface Display
Key:
AJ Navigate to the Pressure Trend
screen.
A
AJ
Torque Trend Screen
Overview
The Torque Trend screen allows the user to view the
pump torque and motor torque in real time.
Pump Torque
The Pump Torque shows the effective torque on the
pump during operation.
Motor Torque
The Motor Torque shows the torque on the motor during
operation and is measured in in/lbs.
963A5185B
Page 97
Appendix A - User Interface Display
A
Alarm Screen
Refer to Error Codes and Troubleshooting on page 32 for information on possible errors.
Acknowledge All List
When pressed, the Acknowledge All List button
acknowledges all errors listed on the Alarm Screen and
adds to the screen the time when the errors were
acknowledged. This button must be pressed prior to
pressing the Clear All Alarms button.
NOTE: Acknowledging alarms does not clear them.
Clear All Alarms
When pressed, the Clear All Alarms button will remove
all errors listed on the Alarm Screen. Before pressing
the Clear All Alarms button, all alarms must be acknowledged.
NOTE: The Clear All Alarms button can only be pressed
if Error Reset is Enabled (see Configure Errors on
page 21).
3A5185B97
Page 98
Appendix B - I/O
AutomationPGM Control
Input Circuit
24VDC
Relay
Contact
Input
Pin 1 or 2
5
Appendix B - I/O
Using the PGM I/O
The gear meter uses several I/O signals to communicate with plant automation controllers. There are two digital
inputs, three digital outputs, and one analog input. All of these signals are routed to the I/O connector on the top of
the controller.
Other pins on the I/O connector include 24 VDC power, 24 VDC common, analog common, and a signal which is 24
VDC power only when the controller E-Stop switch is latched in. None of the signals are isolated; all are referenced
to the ground plane of the control box. The following paragraphs describe typical connection methods for the automation controller signals.
Digital Inputs
The two digital inputs are Dispense Start and Job Complete. These inputs require a 24 VDC current sourcing
output from the automation controller. See F
IG. 41.
If the automation controller uses relay contacts to activate I/O signals, the 24 VDC available at the gear meter
I/O connector (pin 5) should be used to drive the inputs.
If the automation controller uses high-side switching of
24 VDC, the automation outputs can be directly connected to the inputs as long as the 24 VDC common
(pin 6) of the gear meter is able to be connected to the
automation controller common. If the automation controller outputs are low-side switching (open collector) or
a voltage other than 24 VDC, relays must be used as
shown in F
IG. 41.
FIG. 41
983A5185B
Page 99
Digital Outputs
AutomationPGM Control
Output Circuit
Load
(750 mA max)
Pins 10, 11, 12
DC Common
6
The three digital outputs are Dispenser Ready, Fault
Present and In Cycle. These outputs perform high-side
switching of 24 VDC and require a 24 VDC current sinking input at the automation controller. See F
automation controller uses 24 VDC relay coils to receive
I/O signals, the signals should be connected as shown
in F
IG. 42.
If the automation controller inputs are current sourcing
or use a voltage other than 24 VDC, relays with 24 VDC
coils must be used as shown in F
IG. 42.
IG. 42. If the
Appendix B - I/O
IG. 42
F
3A5185B99
Page 100
Appendix B - I/O
+24 VDC
E-Stop Switch
Pin 14
Analog Inputs
The PGM receives a flow rate analog command from
the automation. The 0 to 10 VDC analog input is referenced to analog common on the control. See F
The reference for the automation controller analog output must be connected to the PGM analog reference
(pin 8) for this signal to function properly.
AutomationPGM Control
0 to 10 VDC
Pin 7
Pin 8
Analog Input
F
IG. 43
_
+
-
IG. 43.
Voltage
Relays
If the use of relays is required to condition the digital I/O
signals, these are some examples of part numbers that
could be used.
For 24 VDC Coils:
•Relay: Phoenix Contact Part Number: 2966171
For 120 VAC Coils:
•Relay: Phoenix Contact Part Number: 2966197
24 VDC From E-Stop
The PGM provides a signal that can be used by the
automation controller to monitor the emergency stop
switch position of the PGM controller. See F
F
IG. 44
IG. 44.
1003A5185B
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