Max Machinery MP370 User manual

Users Guide for MP370
Touch Panel Control System

Table of contents
Screens
Home ...................................... pg 3
Component .............................. pg 4
Calibrate ................................ pg 5
Component Alarm ................... pg 6
Component PID Temp ............... pg 8
Component PID Flow ................ pg 9
Heater ................................... pg 10
Heater Alarm .......................... pg 11
Heater PID Temp .................... pg 1 2
Chiller .................................... pg 13
Chi ller Alarm ........................... pg 1 4
Mixer ..................................... pg 15
Mixer Alarm ............................ pg 16
Mixer Purge/ Flush /Lube .......... pg 1 7
Vacuum Cold Trap .................. pg 1 9
Vacuum Cold Trap Alarm ......... pg 20
System ................................... pg 21
Timer ..................................... pg 22
Administration ........................ pg 23
Alarm Log .............................. pg 24
Security Access ....................... pg 25
Back up and Restore ............... pg 26
Screen navigation ......................... pg 27
Please Note: this manual is designed to be a quick reference guide and training aid in the use of
the MP370 machine interface. The operation of the Max urethane processor is easily mastered
and with this guide, yo u will be able to operate the machine quickly and with confidence.
Areas regarding the mechanical systems and maintenance of the machine can be found in the
main processor manual.
Configurations and q uestions not covered in this manual should be referred to the Technical
Service Department at Max Machinery, Inc (707) 433 - 7281
© Max Machinery, Inc. Rev. 7 /2/07

Screens
Home
The Home Screen is the main operator interface to the machine. All standard operating
pa rameters are displayed for easy verification of proper operation. Each tank icon contains that
components ’ tank level, tank and processing temperature, pouring and recirculation pressure,
the flow set point, the actual flow rate the flow control mode and whether the pour valve is
currently enabled.
The Mix head icon reports the current temperature and mixer RPM. To the left is an indication
of the shot time and sum of the flow set points. To the right is a report of the mixer switch
position and the prog rammed response of the pot life timer.
If installed, t he icons along the bottom access Log -out, recipes (an optional function) , the
heater /chiller (s), vacuum pump(s), the muting of the alarm and the System Screen
Touching the top half of the tank icon will access the component screen and alarm input
screens.
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User Name
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12
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31
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2000 10
:
59
:
59
_
Run
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Timer
:
Off
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Total Delivery
_
Pour Time
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Potlife Action
_
None
_
Mixer State
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Off
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OFF
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C
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OFF
_
D
_
OFF
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B
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000 °C
_
Tank
_
Pour
_
Recirc
_
000 °C
_
Line
_
000
°C
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Tank
_
Pour
_
Recirc
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000
°C
_
Line
_
000 °C
_
Tank
_
Pour
_
Recirc
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000 °C
_
Line
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000
_
OFF
_
A
_
Po
ur
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Recirc
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000
°C
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0000
.
00
_
g/min
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0000
.
00
_
g/min
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0000
.
00
_
g/min
_
0000
.
00
g/min
_
0000
.
00
_
g/min
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0000
.
00
_
g/min
_
0000
.
00
_
g/min
_
0000
.
00
_
g/min
_
0000
ps
i
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0000
psi
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0000
_
psi
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0000
_
psi
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000
_
0000
psi
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0000
psi
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0000
psi
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0000
_
psi
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0000
_
rpm
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N
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N
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N
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N
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0000
.
00
g/min
_
000
_
%
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0000
.
00
_
sec
_
000
_
%
_
000
_
%
_
000
_
%
_
Line
_
Tank
°C
°C
_1
_2
_1
_2

Screens
Component
The Component screen is where the operator controls T emperature, Flow Rate, Level and
Pressure. The operator can also access the Temperature P.I.D, Flo w Rate P.I.D, Calibration
and Component Alarm windows.
There are multiple temperature zones. The drop down menu allows you to individually select
the temperature offset of the zone relative to the process temperature shown above. Process
temperature typi cally refers to Line temperature at the 3 - way valve.
Level control will operate the automatic fill valve to start and stop the filling process. Note: to
start the flow from a new supply barrel may require cycling the control button several times
until th e material reaches the fill valve level probe. A time out function is used to prevent the
imploding of empty barrels. Repeated activations will rewet the probe.
Flow rate can be controlled by monitoring the pump speed or the flow meter output signal.
Se lect the appropriate control point and input the set point for your recipe.
Pressure is usually controlled automatically. In the manual mode you can bias the recirculation
pressure for very short shots – please consult the factory for direction.
Agitator control is an On/Off choice.
Icons at the bottom are links to the following pages.
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12
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31
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2000 10
:
59
:
59
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Run
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Timer
:
Off
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0000
.
00
_
OFF
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Set Point
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Error
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0000
.
00
_
0000
.
00
_
g/min
_
0000
.
00
_
Control
_
Output
_
OFF
_
Control
_
g/min
_
00
.
0
_
%
_
%
_
Pour
_
Recirc
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Delta
_
Pressure
_
0000
_
0000
_
0000
_
Mode
_
psi
_
Level
_
000
_
000
_
000
_
°C
_
A
_
A
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Flowrate
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Pumprate
_
Temperature
_
A
_
Flow Rate
_
A
_
Agitator
_
A
_
000
°C
_
000
°C
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000 °C
_
000
_
Control
_
000
_
Off
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Manual
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Start
_
psi
_
psi
_
%
_
%
_
%
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Tank Stop
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Tank Level
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Tank Start
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Fill Valve
_
%
_
Text
_
g/min
_
F
ill Level
_
LINE
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Zone
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Current
_
Offset
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Control
_
Off
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Heat
_
Cool
_
Off
_
Run
_
Standby
_
Off

Screens
Calibrate
The Calibrate screen is used to calibrate the flow meter and pump output for an individual
component, line pressure can a lso be monitored and controlled from the calibrate screen.
NOTE: You cannot enter the calibration screen during a pour, flush or material purge of the
mix head. Entering or leaving this screen will set all pour valves to “N” to prevent
unintentional pour ing of chemicals.
Before any short duration shots are performed, the pour and recirculation pressure need to be
balanced. Establish the flow rate you intend to use. Cycle the pour valve and compare the
displayed values. In automatic mode, the PLC will b alance the two values. In manual mode,
you can use the +/ - keys to adjust the recirculation pressure until it matches the pour pressure.
A calibration check should be done for both the Flow Control choice and the Pump Control
choice. ( In systems that do not have flow meters , only the Pump Control choice will be valid.)
The intended flow rate for this component should be entered as the Set Point. Select a pour
time that will create a sample of at least 100 grams. Push the “start pour” button on the mix
head control box, collect and weigh the sample. Input the sample weight into the “Measured
Pour” field and hit the “Calibrate” button.
Calibration values that exceed the previously defined maximum Flow or Pump rate, or that
change the density value by mo re than 10% will trigger a warning message. Double check the
weight and entered value before accepting the adjustment.
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12
/
31
/
2000 10
:
59
:
59
_
Run
_
Timer
:
Off
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0000
.
00
_
0000
.
00
_
Set Point
_
0000
.
00
_
0000
.
00
_
0000
.
00
_
Pour Time
_
000
.
00
_
sec
_
Control
_
Measured Pour
_
Pump Max
_
OFF
g/min
g/min
g/min
g/min
_
Flow Max
_
Flowrate
_
Pumprate
_
N
_
Pour
_
0000
.
00
g/min
gram
s
_
Calibrate
_
Reject
_
Accept
_
CALIBRATION CHANGED MORE THAN
10
%
_
CHECK YOUR SETTINGS
!!
_
Pour
_
Recirc
_
Pressure
_
0000
_
0000
_
Mode
psi
_
Manual
psi
_
A
_
Calibration
_
A

Screens
Component Alarm
The Component Alarm screen is where the operator sets alarm limits and actions for
component Temperature, Flow Rate, Level and Pressure.
Temperature: Select which zone to set alarm settings for by selecting the Zone list box. Set the
desired Hi and Lo temperature alarm set points and the associated actions. The Lo 2
temperature alarm set point value is an absolute value and its action is hard coded as “MO” -
motor off.
Flow Rate: Set the desired Hi1, Hi2, Lo1, Lo2 flow rate alarm set points and the associated
actions. All alarm set points are relative to the current flow rate.
Tank Level: Set the desired Hi and Lo Tank level alarm set points and the associated actions.
All alarm set points are absolute values.
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12
/
31
/
2000
10
:
59
:
59
_
Run
_
Timer
:
Off
_
000
_
000
_
FS
_
%
_
%
_
000
_
000
_
NA
_
psi
_
psi
_
000
_
000
_
psi
_
psi
_
000
_
000
_
000
_
NA
_
NA
_
%
_
%
_
%
_
000
_
000
_
NA
_
NA
_
%
_
%
_
00
0
_
000
_
%
_
%
_
0000
.
00
_
%
_
LINE
_
000
_
000
_
000
_
NA
_
NA
°C
_
Zone
_
000
°C
°C
_
MO
_
Tank Level
_
A
_
Flow Rate
_
A
_
Temperature
_
A
_
Fill Level
_
A
_
Pressure
_
A
_
Delta Pressure
_
A
°C
°C
Actions:
IP - Inhibit next pour SP – Stop pour
MO - Motor off FS – Filling stopped VO - Vacuum off

Fill Level: Set the desired Lo supply level alarm set point. The Lo supply level alarm action is
hard coded as FS.
Pressure: Set the desired Hi pressure alarm set point and the associated action. The Hi
pressure alarm set point is an absolute value.
Delta - Pressure: Set the desired Hi pressure alarm set point and the associated action. The Hi
pressure ala rm set point is an absolute value.

Screens
Component PID for Temp
Each temperature zone has P.I.D. tuning for optimum temperature control. These values are set
at the factory and are based on the response rate of the tanks, lines and other components to the
input of hot glycol. These values should not be adjusted without first consulting with the
Technical Service Department at Max Machinery.
_
_
12
/
31
/
2000 10
:
59
:
59
_
Run
_
Timer
:
Off
_
LINE
_
Current
_
Bandwidth
_
Duty
Cycle
_
Zone
_
Temperature P
.
I
.
D
.
_
Auto Reset
_
000
°C
_
00
.
0
_
000
_
0000
_
%
_
000
°C
_
000
°C
_
Run
_
Standby
°C
_
sec
_
A
_
PID Reset
_
Reset

Screens
Component PID for Flow
Both the flow meter signal and the pump motor controller have P.I.D. tuning for optimum
closed loop control. These values are set at the factory and are based on the response rate of
the pumps and meters to a change in flow conditions or set point. These values should not be
adjusted without first consulting with the Technical Service Department at Max Machinery.

Screens
Heater
Each glycol heater system can be independently activated and be set with a Run temperature
and a standby temperature. The control options are Off, run the pump only, or run the heater
and pump. Additional safety feature information is also displayed: The back up safety
thermocouple, the delta temperature between the two probes and the level in the glycol
reservoir – any of which will shut off the heater if a fault is detected.
The heater alarm configuration screen is accessed by selecting the “Beacon” button
_
_
12
/
31
/
2000 10
:
59
:
59
_
Run
_
Timer
:
Off
_
OFF
_
000
_
000
_
000
_
000
_
000
_
Current
_
Safety
_
Delta
_
Level
_
000
°C
°
C
°C
°C
°C
_
Control
_
%
_
R
un
_
Standby
_
1
_
Primary Heater
_
Temperature