P1S Programmable Process Temperature Controller www.maxitrol.com USER’S / PROGRAMMING GUIDE © Copyright 2007, Maxitrol Company. All Rights Reserved.
Warnings Inappropriate and/or improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment. Disconnect power before installation to prevent electrical shock or equipment damage. FOR YOUR SAFETY If you smell gas: 1 2 3 4 Open windows. Do not touch electrical switches. Extinguish any open flame. Immediately call your gas supplier.
General Statement The MP2 system is intended for low temperature process applications, for example paint spray booths or other curing processes. It is ideal for temperature critical and time sensitive process applications requiring temperatures from 60°F to 240°F. Contents Warnings................................................................................................. 2 General Statement.................................................................................. 3 Contents...................
Features Process Menu Process Set Point A maximum of (8) Process Set Points are available with a temperature range of 60°F (15°C) to 240°F (115°C). The Process Set Point is displayed as “SP.” Process Set Points not being used can be turned to an “Off” setting. Process Times (TM02 required) Any of the (8) Processes can be timed. Each timed Process has a range of 00:00:01 to 23:59:59. The conclusion of a timed Process will immediately proceed into the next Process.
Features Offset Temp This feature is used to maintain a desired temperature in an area not being directly sensed by the MP2 system. The average difference between the MP2 sensed discharged temperature and the desired space temperature must be known. This is the Offset. The Offset will set the MP2 sensed discharged air needed to produce the desired space temperature. Decrease (-) the Offset to maintain and control space temperature lower than MP2 discharged temperature.
Features Timers The controller features two Timers (Timer 1 and Timer 2) that accumulate the hours of operation for each Process. Each Process has a Timer 1 and a Timer 2. The TM02 is required. Timer 1 Timer 1 logs the hours of operation for a Process. It will log up 999 hours at which time it will automatically reset to zero. The hours can be user reset to zero at any time.
Features Monitor The Monitor feature is a useful tool when setting up or troubleshooting the MP2 system. The following will appear on the display when Monitor is in the “On” position: Set Point Temperature Manual or Timed Soft Start Process # Ramp Sensed Process Temperature VDC to Modulator Bandwidth Looping Mode (TM02 applications only) The looping mode feature is used to select the controllers default position on startup and after the last process of a program is completed.
Features F/C Mode This feature sets the control to operate in either the Fahrenheit (F) or Celsius (C) mode. NOTE: Changing between Fahrenheit and Celsius will reset the control to factory default settings. Software Version Displays the version of software utilized by the controller. Process Identifier Menu Process Ident This feature allows the user to customize the identification of each process in a program. The identifiers are selected from the following list.
Technical Data NOTE: The technical data listed in this manual does not include normal operating deviations that occur in the actual manufacturing process. The listed specifications may not meet the individual unit’s actual specifications. Slight deviations in an individual unit’s performance may be encountered due to possible changes in the controlled conditions in which the unit is tested and calibrated. Check ratings given in OEM instructions to assure the MP2 is suitable for the application.
Menus Process Menu Process Temperatures g Temp Set Point Process #(1 - 8) g Off, 60°F (15°C) to 240°F (115°C) Process Time g Time Process #(1 - 8) g Hours, Minutes, Seconds g Manual, 00:00:01 to 23:59:59 TM02 required Operation Menu Soft Start g Off, Slow, Medium, Fast Max Valve VDC g 7 to 25 VDC Max Ramp VDC g 5 to 24 VDC Total Bandwidth g 5°F(2.8°C) to 15°F (8.3°C) Offset Temp g Offset Temp Process #(1 - 8) g -10°F(-5.6°C) to +10°F(5.
Programming the MP2 Spray Button 1 Momentary Switch Up/Down Arrows Program Enter Programming Buttons Press once to initially enter programming mode. Press once during programming to return to the previous screen. Press, hold for 5 seconds and release to EXIT programming mode. Press either to scroll or advance through menus. Press either to change current value. Press once to enter into the selected menu or programming mode. Press once to store programmed setting.
Programming the MP2 Programming To enter the Process, Operation, Diagnostic, and Process Identifier Menus Press PGM once. Process Menu programming: to the Process Menu, press 1 Scroll . ENT Process Temperatures to Temperatures, press 2 Scroll ENT 3 Temp Set Point Process #, scroll . to Set Point #, press 4 Set Point Temp Process #, XX°F, set ENT . Process Temperature value (OFF, 60°F (15°C) to 240°F (115°C)), press ENT . 5 **Stored** will flash 4 times to confirm entry.
Programming the MP2 Operation Menu programming: to the Operation Menu, press 1 Scroll ENT . Soft Start to Soft Start and press 2 Scroll 3 Soft Start, scroll . ENT to Off, Slow, Medium or Fast, press ENT . 4 **Stored** will flash 4 times to confirm entry. Max Valve VDC to Max Valve VDC, press 2 Scroll 3 Max Valve VDC, set ENT . voltage value (7 V to 25 V), press ENT . 4 **Stored** will flash 4 times to confirm entry.
Programming the MP2 Ramping 2 Scroll to Ramping, press ENT 3 Ramping Process #, scroll . to Set Point #, press 4 Rmp Rate Proc #, set ENT . Ramp Rate (Off, 60 to 900 Deg/Hr),press ENT 5 **Stored** will flash 4 times to confirm entry. 6 Repeat steps 2 through 7 for Set Points #(2 - 8). Timers (TM02 required) 2 Scroll to Timers, press ENT .
Programming the MP2 Diagnostic Menu programming to the Diagnostic Menu, press 1 Scroll ENT . Max Proc Temp to Max Proc Temp, press 2 Scroll 3 Maximum Temp Process #, scroll 4 Max T Proc #, set press ENT . ENT to Set Point #, press ENT . Temp. value (60°F (15°C) to 240°F (115°C)), . 5 **Stored** will flash 4 times to confirm entry. 6 Repeat steps 2 through 5 for Set Points #(2 - 8). Min Proc Temp to Min Proc Temp, press 2 Scroll 3 Min Proc Temp, set press ENT ENT . Temp.
Programming the MP2 F/C Mode to F/C Mode, press 2 Scroll 3 F/C MODE, scroll ENT . to either Fahrenheit or Celsius, press ENT 4 **Stored** will flash 4 times to confirm entry. NOTE: Changing between F and C will cause the MP2 system to reset to factory defaults. Software Version to Menu Software Version, press 2 Scroll ENT . ENT . 3 Software Version information will appear.
Operation MP2 Process Control System w/ TM02 Multifunctional Timer Control Switching to the Next Programmed Process Timed processes Nothing is required. The MP2 System will immediately proceed to the next programmed Process after timing out. NOTE: If the last Process of a program is timed, it will proceed either to the “READY” position or to the First Process. By selecting the First Process in the LOOPING Mode menu, the MP2 can be programmed into a continuous program loop (see page 7, LOOPING Mode).
1k PLT RTD VALVE 24VAC AM02 18 1 2 SW1 OPEN 9 J2 J1 D2 (OPTIONAL) Standard 6 Position 4 Conductor Telephone Cable (see the MP2 Installation Guide) (see the MP2 Installation Guide) TB2 RELAY8 TDM02 - + RELAY1 J3 TM02 Ethernet Patch Cord Lockout Switch Settings J2 J3 TB1 COM SETPOINT Normally open device to momentarily latch a set of contacts. Multiple devices to be wired in parallel. 24VAC - + 8 - + © Copyright 2007, Maxitrol Company. All Rights Reserved.
Field Service Checklist Observed Problem: Possible Cause: Remedy: A. No gas flow. 1. Modulating valve improperly installed. 1. Install with arrow on valve pointing in direction of gas flow. B. Continuous low fire (electronics problem). 1. Short circuit or no voltage to the amplifier. 1. Prove the power source by checking for 24V AC at amplifier. 2. Open circuit in TS194(Q) Discharge Air Sensor circuit or wiring. 2. Check TS194(Q) for open circuit.
Field Service Checklist Observed Problem: C. Continuous low fire (electronics OK), continued. Possible Cause: 2. Plunger missing, jammed or improperly installed. Remedy: 2. Inspect. Plunger should be smooth, clean and operate freely in solenoid sleeve. Clean or replace plunger if necessary. Do not use lubricants of any type. D. Incorrect low fire, erratic or pulsating flame. 1. Incorrect by-pass metering adjustment. 1. Adjust to proper low fire. See Valve Adjustments (pg.29) for low fire adjustment.
Field Service Checklist Observed Problem: E. Continuous high fire (electronics problem). Possible Cause: 1. Short circuit in TS194(Q) Discharge Air Sensor circuit or wiring. Remedy: 1. Check TS194(Q) for internal short ciruit. See Temperature Sensor Function of Preliminary Circuit Analysis (pg. 28). Connect test resistor as described in step 2 of Preliminary Circuit Analysis (pg. 27) and follow procedure outlined. Replace TS194(Q) if necessary. 2. Faulty MP2 2. Perform Remedy for Possible Cause 1 above.
Field Service Checklist Observed Problem: G. Incorrect high fire. Possible Cause: 1. Inlet pressure too low. Remedy: 1. Read pressure at inlet to modulating valve using a manometer with unit operating at full fire. Pressure should be equal to the sum of outlet pressure setting plus pressure drop of the valve. See Maxitrol’s Capacity Chart, M-MR.MT. EN, (pg. 7). Increase inlet pressure if possible. 2. Incorrect outlet 2. Read manifold pressure pressure using adjustment of manometer and Pressure Regulator.
Field Service Checklist Observed Problem: Possible Cause: H. Erratic or pulsating flame, continued. 2. Erratic air patterns or improper TS194(Q) location. Remedy: 2. Connect test resistor as described in step 2 of Preliminary Circuit Analysis (pg. 27). Set point temperature to process temperature being displayed. If the flame is steady, the TS194(Q) should be moved. 3. Wiring is run next to high voltage switching circuits causing induced voltages. 3.
Field Service Checklist Observed Problem: I. Possible Cause: Incorrect discharge 1. Incorrect wiring. air temperature. J. Burned out transformer. Remedy: 1. Check wiring diagrams in MP2 Installation Guide (pg. 6) and correct if necessary. 2. System out of calibration. 2. If sensed temperature (thermometer next to TS194(Q)) does not correspond to MP2 setting. See Calibration Procedure on (pg. 15). 3. Improper TS194(Q) location. 3.
Field Service Checklist Observed Problem: Possible Cause: Remedy: K. Process 1. Discharge air temperature display temperature too reads “Low”. low. 1. Raise discharge air temperature to greater than 60ºF. L. Control inoperable; 1. Bad cable display reads connection “Ready...” between dial and amplifier. 1. Remove power. Disconnect and reconnect cable securely. Restore power. If “Ready...” remains, replace or consult Maxitrol Company. 2. Dial cable disconnected and reconnected with system powered. 2.
Field Service Checklist Observed Problem: M. Control resets. Possible Cause: 1. Momentary switch wiring is run next to high voltage switching circuits causing induced voltages. Remedy: 1. Temporarily wire momentary switch externally or disconnect external momentary switch wiring and use integral switch only. If proper operation results, isolate effected wiring from source of induced voltage or use integral switch only. 2. Momentary loss of power. © Copyright 2007, Maxitrol Company. All Rights Reserved.
Preliminary Circuit Analysis In order to diagnose the system it is necessary to determine certain values. It is helpful to have a volt/ohm multimeter and a fixed or variable resistance between 1100 and 1300 ohms. Modulation Function: If sensed (displayed) process temperature is less than 70ºF, perform step 1 below, otherwise continue to step 2. 1 Disconnect the sensor wires going to the amplifier and replace with means to obtain a resistance value falling somewhere within the controllers programmed range.
Preliminary Circuit Analysis Temperature Sensor Function: 1 Disconnect the sensor wires at the amplifier. Sensor resistance should measure somewhere between 930 (approx. 0ºF) and 1350 ohms (approx. 240ºF). NOTE: An input temperature sensor resistance of less than 1050 ohms will cause the control to display “low” for the process temperature. This is a normal condition. The control will begin displaying the sensed temperature when 1050 ohms (approx. 60ºF) or greater is input.
Valve Adjustments NOTE: Low fire adjustment should be checked whenever the high fire adjustment is changed. MR212 Valve High Fire Adjustment: 1 Short the sensor connection at the amplifier. This drives the valve to continuous high fire condition. 2 Remove seal cap (A, Figure 1), and turn regulator pressure adjusting screw to obtain desired manifold pressure. (Clockwise rotation increases pressure.) 3 Remove the short to the amplifier sensor connection.
Valve Adjustments M411, 511, 611 Valve High Fire Adjustment: 1 Short the sensor connection at the amplifier. This drives the valve to a continuous high fire condition. 2 Adjust the pressure regulator to obtain the desired manifold pressure (7˝ w.c. maximum). 3 Remove the short to the amplifier sensor connection. Low Fire Adjustment: 1 Remove a sensor wire from amplifier terminal. This drives the valve to a continuous low fire condition.
Glossary Process A single programmed temperature, or single programmed temperature and time. Program The combination or series of Processes. “Ready” Screen display. When selected, it appears prior to the start of a program involving timed processes. A momentary switch closure moves the controller from the “Ready” position to the First Process. Manual Process The (8) Processes can be manually timed. It is an infinite Process that terminates when it is manually switched.
MP2.UG.EN.07.2007 © Copyright 2007, Maxitrol Company. All Rights Reserved. 23555 Telegraph Road Southfield, MI 48033 248.356.1400 tel 248.356.0829 fax www.maxitrol.
