Despatch RBC1-50 Specifications

Download

C-197

P/N 157413

REVISION H

11/2007

RBC1-50

WITH PROTOCOL PLUS™

INSTRUCTION MANUAL

RBC1-50 Despatch Ovens are bench ovens designed for operation to 260°C (500°F) with forced convection airflow.

Model Volts Heater watts Amps HZ Phase RBC1-50 208 3,000 23 60 1 220 3,360 24 50 1 240 4,000 24 60 1

Prepared by: Despatch Industries 8860 207th St. West Lakeville, MN 55044 Customer Service 800-473-7373

Notice

Users of this equipment must comply with operating procedures and training of operation personnel as required by the Occupational Safety and Health Act (OSHA) of 1970, Section 6 and relevant safety standards, as well as other safety rules and regulations of state and local governments. Refer to the relevant safety standards in OSHA and National Fire Protection Association (NFPA), section 86 of 1990.

Caution

Setup and maintenance of the equipment should be performed by qualified personnel who are experienced in handling all facets of this type of system. Improper setup and operation of this equipment could cause an explosion that may result in equipment damage, personal injury or possible death.

Dear Customer, Thank you for choosing Despatch Industries. We appreciate

the opportunity to work with you and to meet your heat processing needs. We believe that you have selected the finest equipment available in the heat processing industry.

At Despatch, our service does not end after the purchase and delivery of our equipment. For this reason we have created the Service Products Division within Despatch. The Service Products Division features our Response Center for customer service. The Response Center will direct and track your service call to ensure satisfaction.

Whenever you need service or replacement parts, contact the Response Center at 1-800-473-7373: FAX 612-781-

5353. Thank you for choosing Despatch.

Sincerely, Despatch Industries

PREFACE

This manual is your guide to the Despatch oven. It is organized to give you the information you need quickly and easily.

The INTRODUCTION section provides an overview of the Despatch oven.

The THEORY OF OPERATION section details the function and operation of assemblies and subassemblies on the Despatch oven.

The INSTRUCTIONS section provides directions on unpacking, installing, operating and maintaining the Despatch oven.

The APPENDIX section contains special instructions on air atmosphere and nitrogen atmosphere Burn-In ovens, a Troubleshooting Table, a list of Accessories and a Warranty.

The parts are listed in the corner of the attached prints, the electrical items on the electrical print and the mechanical items on the mechanical prints.

An efficient way to learn about the oven would be to read the manual while working with the corresponding oven control system. This will give you practical hands-on experience with information in the manual and the oven.

Before operating the equipment, be sure you understand all of the technical information contained in this manual. Information skipped, not understood or misunderstood could create the possibility of operating the equipment in an unsafe manner. This can cause damage to the oven or personnel or reduce the efficiency of the equipment.

NOTE: Read the entire INTRODUCTION and THEORY OF OPERATION before installing the oven.

WARNING: Failure to heed warnings in this instruction manual and on the oven could result in personal injury, property damage or death.

Revision B (1-02): Updated drawings Revision C (4-02): Modified per Rev 3.0 Protocol Plus software Revision D (5-03): Updated drawings and Despatch Industries Product Warranty Revision E (2-04): Update drawings Revision F (3-04): Update drawings Revision G (8-06): Revised Protocol Plus numbers. Updated Despatch address Revision H (11-07) Updated warranty

iii

TABLE OF CONTENTS

PREFACE........................................................................................................................ i

INTRODUCTION.............................................................................................................1

Special Features.......................................................................................................... 1

Specifications .............................................................................................................. 2

Dimensions .............................................................................................................. 2

Capacities ................................................................................................................2

Temperature ............................................................................................................ 3

Power.......................................................................................................................4

Power Requirements............................................................................................ 4

THEORY OF OPERATION .............................................................................................5

Temperature Control.................................................................................................... 5

Power Switch............................................................................................................... 6

Air Circulation ..............................................................................................................6

Chamber Design.......................................................................................................... 6

Airflow Switch ..............................................................................................................6

Alarm...........................................................................................................................6

Chamber Door Handle................................................................................................. 7

Damper Control ...........................................................................................................7

Determining Damper Settings..................................................................................7

Full Closed Position.............................................................................................. 7

Full Open Position................................................................................................ 8

Minimum Opening for Dissipation of Live Load ....................................................8

Other Damper Settings......................................................................................... 8

OVEN INSTRUCTIONS................................................................................................ 10

Unpacking and Inspection ......................................................................................... 10

Warning Signs Missing.............................................................................................. 11

Set-up........................................................................................................................12

Power Connection ..................................................................................................... 13

Operating...................................................................................................................14

Loading the Oven...................................................................................................14

Oven Temperature Limit ........................................................................................ 14

Product Temperature Limit..................................................................................... 15

Operator Training Requirements............................................................................ 15

Pre-Startup Checklist.............................................................................................16

Startup ...................................................................................................................16

PROTOCOL PLUS CONTROLLER ..............................................................................18

Theory of Control Operation ...................................................................................... 18

Operating Modes....................................................................................................20

Setup Mode............................................................................................................20

Fast Start Mode......................................................................................................20

High Limit...............................................................................................................21

Indicators ...............................................................................................................21

Displays .................................................................................................................22

Key Functions ........................................................................................................ 22

Outputs ..................................................................................................................23

Relay (Continued)..................................................................................................24

Communication......................................................................................................24

Optional Software...................................................................................................24

INSTRUCTIONS ........................................................................................................... 25

Start-Up.....................................................................................................................25

Operation...................................................................................................................26

Manual Mode ......................................................................................................... 26

Timer Mode............................................................................................................27

Profile Mode...........................................................................................................28

Auto Start Mode.....................................................................................................28

Setup Mode............................................................................................................29

Instructions for Setup Mode Pages............................................................................ 30

Program Page........................................................................................................30

Profile # ..............................................................................................................32

Sample Profile........................................................................................................33

Auto Start Page (optional)......................................................................................34

PID Page................................................................................................................36

Control Page..........................................................................................................38

Communication Page (optional)............................................................................. 39

Real Time Clock Page (optional)............................................................................ 39

Relay Outputs Page (optional)...............................................................................40

Test Page...............................................................................................................41

Zone Calibration Page ........................................................................................... 42

Sensor Calibration Page ........................................................................................44

Enable Page ..........................................................................................................46

Digital Inputs (optional) .......................................................................................... 47

Error Messages and Alarms ......................................................................................48

Quick Reference and Default Values......................................................................... 49

Technical Specifications ............................................................................................56

Maintenance..............................................................................................................57

Checklist ................................................................................................................57

Inspection and Cleaning.........................................................................................58

Vents..................................................................................................................58

Chamber.............................................................................................................58

Control Cabinet and Fan .................................................................................... 58

Chamber Door Gasket........................................................................................59

Recirculation Motor.............................................................................................59

Oven Exterior......................................................................................................59

Oven Chamber Interior.......................................................................................59

Door Hinges and Latches...................................................................................59

Automatic Damper..............................................................................................60

Controls and Indicators.......................................................................................60

Loose Screws, Bolts and Fasteners ...................................................................60

Lubrication..........................................................................................................60

Tests......................................................................................................................61

OPTIONAL ACCESSORIES .........................................................................................62

Door Switch ...............................................................................................................62

Recorder....................................................................................................................62

Redundant High-Limit................................................................................................ 62

Disconnect Switch ..................................................................................................... 63

Stacking Option ......................................................................................................... 63

Replacement .............................................................................................................64

Parts.......................................................................................................................64

Nitrogen and Liquid Nitrogen..................................................................................... 64

Theory of Operation...............................................................................................64

Operator Training Requirements............................................................................ 65

Operation...................................................................................................................65

Nitrogen Atmosphere.................................................................................................67

Purge Rate.............................................................................................................67

Maintain Rate.........................................................................................................68

Troubleshooting.........................................................................................................69

Circuit Board Check...............................................................................................71

DRAWINGS .................................................................................................................. 72

APPENDIX: Temperature Scale Conversion and Optional MRC5000 Setup................75

Temperature Scale Conversion (C/F)........................................................................75

Optional MRC5000 Recorder Setup.......................................................................... 76

vii

INTRODUCTION

This instruction manual covers the operation and maintenance of the Despatch RBC1-50 Burn-In oven.

NOTE: Read the entire INTRODUCTION and THEORY OF OPERATION before installing the oven.

Special Features

The sturdy construction and three-inch insulation top and bottom and four-inches of insulation on the sides of the Despatch RBC1-50 Burn-In ovens contribute to excellent temperature uniformity.

Other special features include the following:

• Unique Despatch design to combine higher fan volume of forced recirculated air with a system of perforated stainless steel walls for the ultimate in temperature uniformity.

• Welded double wall construction and fiberglass insulation to reduce heat loss. Silicone rubber gaskets further minimize heat leakage.

• Rapid response heater.

• Scratch-resistant baked enamel exterior and stainless steel interior for easy

cleaning.

Specifications

Dimensions

Model Chamber Size

in (cm)

W D H W D H RBC1-50 18

(46)

(64)

(46)

Capacities

Maximum Load 150 Lbs Fresh Air/ Exhaust Capacity at

125 °C (255 °F) Recirculating Fan 600 CFM 1 HP

Capacity

feet3

(liters)

4.7

(133)

RBC1-50

Air Atmosphere

51 CFM N/A

Overall Size

in (cm)

(117)

(91)

MODEL

RBC1-50

Nitrogen Atmosphere

31.50 (80)

Fresh Air Inlet 2.5” Diameter N/A Exhaust outlet 2.18” Diameter N/A # of Doors 1 Approximate Weight 470 Lbs. (213 KG)

Temperature

RBC1-50

Time to Temperature 25°C - 80°C (approximate minutes with 25°C - 125°C no live load) 25°C - 260°C

Recovery Time to 125°C with door open 1 Min. Temperature Uniformity at

260°C* Operating Temperature Range

(Based on 25°C ambient, and dampers fully open)

(1)

25°C - 150°C

(2)

125°C*

RBC1-50

Air Atmosphere

4 10 14 34

>1 Min. >1 Min.

<±1°C

±1°C

50° - 260°C 15° - 260°C

Nitrogen Atmosphere

4 10 14 30

<±1°C

±1°C

Control Stability Repeatability ±0.5°C Cooldown Time 125° - 60°C

Dissipation/Mean Temperature Rise 125°C 150°C

(1)

Time to temperature will be slightly longer for lower voltages due to heater kW derating (empty oven).

(2)

Figures are based on a nine-point survey in an empty oven. Uniformity can vary slightly depending

on unit and operating conditions.

(3)

∆

In control stability figures represent the change in ambient temperature.

(4)

Dissipation is reduced by 17% on 50-Hertz operation. Temperature gradient/mean temperature rise is

with an evenly distributed live load.

(3)

40 Min. 11 Min.

(4)

80°C

±0.5°C per 5°C ∆

800 Watts/4°C 1,300 Watts/6°C 1,400 Watts/6°C

Note: Testing performed on 240V-1PH-60HZ.

Power

Line voltages may vary in some geographical locations. If your line voltage is much lower than the oven voltage rating, warm up time will be longer and motors may overload or run hot. If your line voltage is higher than nameplate rating, the motor may run hot and draw excessive amps.

If the line voltage varies more than 10% from the oven voltage rating, some electrical components such as relays, temperature controls, etc. may operate erratically.

Power Requirements

WARNING:

All grounding and safety equipment must be in compliance with applicable codes, ordinances and accepted safe practices.

WARNING: Failure to read this warning can result in death, serious bodily injury or property damage. All conductors must be copper unless the specific terminal is marked for use with aluminum conductors.

Volts Amps Hertz Phase Heater KW

208 23 60 1 3 220 24 50 1 3.4 240 24 60 1 4

THEORY OF OPERATION

Despatch RBC1-50 Burn-In ovens are made for the accelerated life testing of microcircuit electronic devices to identify early mortality. The Despatch RBC1-50 ovens are ideally suited for:

• high-dissipation forward-bias burn-in,

• high temperature reverse-bias burn-in,

• stabilization baking of integrated circuits and other semiconductor devices.

Air atmosphere ovens recirculate air through the chamber. They can add heat and remove dissipated heat. Air is taken from the burn-in room and circulated through the oven. Heat is added by electric resistance elements, or removed through automatically controlled exhaust.

Temperature Control

A Despatch Protocol Plus™ modular microprocessor based digital temperature controller regulates the process. The Protocol Plus™ operates as a dual functioning controller/high limit instrument. The control portion utilizes a time-proportioning voltage signal to control heating, and a milliamp signal to control cooling with minimal temperature fluctuations.

The controller temperature-sensing element, located in the air return plenum area, senses the median air temperature of the oven. The controller automatically controls heat dissipated by sending a signal to the automatic damper modulator. This automatic damper controls the amount of fresh air drawn into the chamber, preventing excessive cooling and conserving energy.

The high limit portion protects the product and/or the oven from overheating. If the product being processed has a critical high temperature limit, the high limit setpoint should be set to a temperature somewhat below the temperature at which the product could be damaged. If the product does not have a critical high temperature limit, the high limit setpoint should be set 5 to 15 degrees higher than the maximum-programmed setpoint at which the oven will operate. When the high limit trips, the alarm horn will signal.

Please refer to the Protocol Plus™ instruction section located in this manual for more detailed information.

Power Switch

The POWER switch controls power to the control circuit, chamber recirculating fan motor relay, control cabinet fan, and any options that were included at the time of purchase.

Air Circulation

A Despatch centrifugal fan draws air through the heater section, moves it evenly across the chamber, past the temperature sensors and back to the heater. The fresh air is controlled manually and a modulating damper controls the exhaust.

Chamber Design

The chamber (in which the load is processed) has air supply and exhaust ducts on opposite sides. The ducts and perforated panels provide uniform airflow and temperature distribution throughout the chamber.

Airflow Switch

The airflow switch senses the differential pressure between the inlet and outlet side of the recirculating fan. If there is no air pressure, the switch disconnects power to the heater, and the alarm horn will signal. An On/Off indicator is visible through a window on the switch. The switch is located in the upper equipment compartment, behind the equipment panel and next to the recirculating motor.

Alarm

When there is a high limit condition, or when there is no air pressure sensed by the airflow switch, an alarm will sound and a red pilot light will be lit. To silence the alarm, depress the momentary ALARM SILENCE switch. The red light will remain on until the alarm condition is cleared.

Chamber Door Handle

The door handle positively engages a cam with a catch in one-quarter turn. The silicone rubber gasket provides a seal around the door as the handle is moved to the latched position.

Damper Control

The oven is equipped with a manually adjustable fresh air damper. The damper blade located on the rear of the oven. The damper adjustment controls the flow of fresh air into the chamber. If the damper is in the full open position, the maximum amount of fresh air is distributed into the chamber.

The exhaust has a modulating damper motor, which is automatically controlled by the Protocol Plus™ controller. No adjustments are necessary.

Determining Damper Settings

WARNING: This oven is not

designed for use with flammable material. If your process involves flammable material, contact Despatch Industries.

The optimum setting for the amount of fresh air that should be distributed into the chamber depends on several factors. These factors include ambient environment temperature, load conditions, load distribution, heat up rates, cool down rates, desired temperature uniformity and most importantly the desired operating temperature. To consider all of these variables at any one point in time is not practical and there are engineering tradeoffs that should be considered. Therefore guidelines should be used to determine the fresh air damper setting.

In general, the damper should be set so that the amount of fresh air flowing into the chamber agrees with the desired operating temperature conditions. The following outline shows the considerations involved with various damper position settings.

Full Closed Position

When the fresh air damper is in the full closed position, the chamber will be able to achieve the maximum attainable heat up rates for the chamber. In addition, the chamber will use the minimum amount of power to operate at the desired temperature. In almost all cases, the fresh air damper should be in the full closed position in order to efficiently operate at the maximum operating temperature for the chamber.

Full Open Position

When the fresh air damper is in the full open position, the chamber will operate at its minimum operating temperature.

Friction heat from the air recirculation system builds up in the chamber. This causes chamber temperature to rise slightly even though the heating system is not turned on. After the recirculation motor has been on for an extended period of time, the chamber will reach a thermal equilibrium temperature.

When the damper is not set to the full open position, the chamber has no way to readily dissipate the heat generated by the friction. With the fresh air damper fully open, the thermal equilibrium temperature is the minimum operating temperature of the chamber.

Minimum Opening for Dissipation of Live Load

To determine the minimum setting for the fresh air damper, only open the damper so that the fresh air dissipates the heat from live load. To conserve energy, the cooling output should be trying to control the setpoint temperature with minimal fluctuations. Close the damper if the heater continues to be cycled on and off. If the cooling is full on and the chamber temperature is over the setpoint, open the damper.

Other Damper Settings

The damper can be set to several other distinct operating positions. In most cases, the damper setting is influenced by specific performance factors. Some of these performance factors are uniformity; cool down rates and required dissipation.

The uniformity of the chamber is influenced by the inside chamber pressure of the system. The pressure inside the chamber is dependant on the amount of fresh air flowing into the chamber. When a large volume of fresh air is flowing into the chamber, the chamber becomes slightly pressurized and the overall temperature uniformity improves. The slightly pressurized chamber produces the effect of "pushing" the air to the corners of the chamber. Typically the corners of the chamber will improve with respect to temperature distribution while the core of the chamber will maintain excellent uniformity characteristics regardless of the damper position. Therefore, the pressurization of the chamber typically is a factor when the chamber is loaded heavily. The best uniformity results, with respect to the product, are achieved when the chamber is loaded uniformly.

NOTE: Overpressurizing the chamber can cause hot air to blow out around the door seal and cause the area around the door to be hot to the touch. To stop this hot air from entering the room, close the damper slightly until the air stops blowing.

OVEN INSTRUCTIONS

Failure to heed warnings in this instruction manual and on the oven could result in death, personal injury or property damage.

WARNING: Do not use oven in wet, corrosive or explosive atmospheres.

Unpacking and Inspection

Remove all packing materials and thoroughly inspect the oven for damage of any kind that could have occurred during shipment.

• See whether the carton and plastic cover sheet inside carton are still in good condition.

• Look at all outside surfaces and corners of the oven for scratches and dents.

• Check the oven controls and indicators for normal movement, bent shafts,

cracks, chips or missing parts such as knobs and lenses.

• Check the door and latch for smooth operation.

If there is damage that may have occurred during shipment, follow these instructions.

1. Contact the shipper immediately and file a written damage claim.

2. Contact Despatch Industries to report your findings and to order replacement parts for those that were damaged or missing.

3. Send a copy of your filed damage claims to Despatch.

4. Next, check to make sure you have received all the required materials. Your shipment should include:

• One (1) Despatch oven

• One (1) Instruction manual

• Any special options that were ordered at time of purchase

Warning Signs Missing

If it appears that any warning, danger, caution or information label or sign has been damaged or lost, contact Despatch Industries for replacements. Call or write:

Service Products Division Despatch Industries P.O. Box 1320 Minneapolis, MN 55440 Call Toll Free 800-473-7373

Set-up

1. Select the location for installing your oven.

2. Install an exhaust stack from the exhaust discharge stack to the outside of the building, if required.

• If a round exhaust stack is used, a minimum area greater than the area of the exhaust stack is required.

• The flashing through the roof or wall must be capable of handling an exhaust stack temperature up to 260°C (500°F).

• All stacks must comply with state and local building codes to insure that surrounding combustible surfaces are below 71°C (160°F).

• Design the exhaust stack to limit the amount of restrictions to insure proper airflow. If more than two (2) elbows are used in the stack, over all airflow will be reduced.

a. The exhaust could be vented into a burn-in room atmosphere or

other exhaust system capable of handling the total rated heat dissipation in:

BTUH



b. We recommend that the ovens be vented to the outside or to an

area that could use the heat. The maximum exhaust temperature could reach the maximum operating temperature of the oven.

3. Place oven on a bench top or directly on the floor. The oven must have a minimum 2-inch clearance in the rear to provide proper ventilation. When placed next to another cabinet, or next to another oven, a 3-inch clearance is required. The doors will still open.

4. Make sure oven is level and plumb; this will assure proper heat distribution and operation of all mechanical components.

5. The atmosphere where the oven is used should be clean, free of solvent vapors. Good results depend on a clean workspace.

3,412 KW ×

 

 



WARNING:

Do not use the oven in wet, corrosive or explosive atmospheres.

BTUH



2,500

 

 



HP Fan ionRecirculat

Power Connection

Be sure the oven is connected to the power source shown on the nameplate. Connect the oven directly to your electric supply, with all grounding and safety equipment, according to applicable codes, ordinances and accepted safe practices.

Line voltages may vary in some geographical locations. If your line voltage is much lower than the oven voltage rating, the warm up time will be longer and the motors may overload or run hot. If the line voltage varies more than ±10% from the oven voltage rating, the temperature control may operate erratically.

WARNING

Failure to read this warning can result in death, serious bodily injury or property damage. All conductors must be copper unless the specific terminal is marked for use with aluminum conductors.

WARNING

All grounding and safety equipment must be in compliance with applicable codes, ordinances and accepted safe practices.

Operating

Users and operators of this oven must comply with operating procedures and training of operating personnel as required by the Occupational Safety and Health Act (OSHA) of 1970, Section 5 and relevant safety standards, and other safety rules and regulations of state and local governments. Refer to the relevant safety standards in OSHA and National Fire Protection Association (NFPA), Section 86 of 1990.

Loading the Oven

Carefully following the instructions in this manual will help the purchaser and operator in fulfilling that responsibility.

Distribute the workload evenly so that airflow is not restricted. Do not overfill your oven. The workload should not take up more than two-thirds of the cross-sectional air-delivery area.

WARNING

Do not use oven in wet, corrosive or explosive atmospheres.

WARNING

Do not heat any closed containers, flammable solvents or other flammable material in this oven. (Examples: spray can, sealed jar of water, alcohol, kerosene, oil, paper, etc.)

Oven Temperature Limit

Do not attempt to exceed the maximum or minimum operating temperature of this oven.

Product Temperature Limit

If the product has a critical high temperature limit, the HIGH-LIMIT control should be used as a process HIGH-LIMIT. When used as a process HIGH-LIMIT, the control should be set to a temperature somewhat below the temperature at which the product would be damaged. A pyrometer could be used to determine the process HIGH-LIMIT setting. If the destructive temperature of the product is already known, this could be used as a point below which the process HIGH-LIMIT could be set.

NOTE

Despatch Industries cannot be responsible for either the process or process temperature used, or for the quality of the product being processed. It is the responsibility of the purchaser and operator to see that the product undergoing processing in a Despatch Industries burn-In oven is adequately protected from damage. Carefully following the instructions in this manual will assist the purchaser and operator in fulfilling that responsibility.

Operator Training Requirements

All users must be thoroughly trained under the supervision of experienced personnel. The operator must be aware of the possible dangers of:

• Suffocation from nitrogen,

• Frostbite from nitrogen as a liquid or as a frozen gas,

• Fire.

Users must demonstrate an understanding of the equipment and its operation to assure knowledge of and practice of safe and proper operating procedures. Users should receive regular retraining and testing as required to maintain a high level of proficiency and effectiveness.

Training should include the:

• function of controls and safety devices,

• handling of special atmospheres (on units with LN2 or GN2).

Pre-Startup Checklist

• Know the system. Read this manual carefully. Make use of its instructions and

explanations. Safe, continuous, satisfactory, trouble-free operation depends primarily on the degree of your understanding of the system and your willingness to keep all parts in proper operating condition.

• Check line voltage. Voltage must correspond to nameplate requirements of motors

and controls. Refer to the section on power connections in the INTRODUCTION of this manual.

• Fresh air and exhaust. Do not be careless about restrictions in and around the fresh

air and exhaust openings and stacks. Under no condition permit them to become so filled with dirt that they appreciably reduce the air quantity. The proper ventilation clearances should be fulfilled at all times. Refer to the Set-up instructions in this manual.

Startup

For fastest oven heat-up time, close the fresh-air vent. After the desired temperature is reached, the vent may be adjusted as needed.

1. Start Fan.

• Open oven door.

• Press Power switch to the ON

position. You will hear the recirculating fan start.

• Shut oven door.

• Check that the control display turns on.

2. Operate the temperature control as desired by following the Protocol Plus™ instruction section located in this manual for more detailed information.

3. When the oven nears temperature set on the control, the heater will start cycling on and off.

4. When the chamber temperature is above setpoint on control, the cooling output of the control will start driving the damper open, which will exhaust air from the chamber.

WARNING

Do not heat any closed containers, flammable solvents or other flammable material in this oven. (Examples: spray can, sealed jar of water, alcohol, kerosene, oil, paper, etc.)

WARNING

Hot surfaces may exist around door, inside cabinet, product, and fixtures. Handle with care.

5. If temperature of the chamber exceeds the high-limit setting on the control, the heater will shut down and the Alarm Horn and red pilot light will energize. The heater will shut off. To silence the alarm:

• Depress the Alarm Silence switch, this is a momentary switch, it will return to its normal position when released.

• The alarm horn will be silenced, but the red alarm pilot light will remain lit.

• When the overtemperature condition clears, press RESET on the control.

• The heater should be back on and the control should be functioning

correctly.

• If the high-limit trips repeatedly, verify the cause of overtemperature and correct problem.

6. If the fan stops running during process, the Airflow switch will trip and the Alarm Horn and pilot light will energize. The heater will shut off.

• Shut down the chamber and correct the problem.

7. Shut down chamber by lowering the setpoint on the control, usually to ambient, 20°C (70°F).

8. Turn the power switch to OFF.

WARNING

On all manual and on all auto processes, the fans should remain in operation until oven temperature is below 150°C (300°F).

PROTOCOL PLUS CONTROLLER

The special features of the Protocol PlusTM control include:

• PID tuning

• Ramp/Soak programming of up to 64 segments

• Segment looping and profile linking

• Built-in manual reset high limit control

• Built-in process timer

• Dedicated LED display for process temperature

• Multi-purpose two-line LCD display with backlight

• Auto-tuning

• Security access

• Process temperature retransmission signal

• Digital inputs for remote profile control

• Optional relay outputs for events, alarms, or end-of-cycle signal

• Optional real-time-clock

•

Optional RS232/RS422/RS485 MODBUS communications

Theory of Control Operation

The Protocol Plus is a modular microprocessor based digital temperature controller. The Protocol Plus operates as a dual functioning controller/high limit instrument. The control portion utilizes a time-proportioning voltage signal to control heating devices with minimal temperature fluctuations.

The high limit portion protects the product and/or the oven from overheating. If the product being processed has a critical high temperature limit, the high limit setpoint should be set to a temperature somewhat below the temperature at which the product could be damaged. If the product does not have a critical high temperature limit, the high limit setpoint should be set 5 to 15 degrees higher than the maximum programmed setpoint at which the oven will operate.

Protocol Plus Faceplate and Wiring Diagram

Operating Modes

The Protocol Plus control has five modes of operation available:

Stopped Mode:

Manual Mode:

Timer Mode:

Profile Mode:

Auto Start Mode (optional):

The optional event outputs can be utilized during Manual, Timer, or Profile modes.

All control and relay outputs are off. Stopped Mode is integrated

into each of the following four modes of operation. Control operates as a single setpoint control until Stopped mode is

accessed

Control operates as a single setpoint control until preset time period

has expired.

Control operates as a ramp/soak profiling control until the end of

the profile. 8 profiles are available with up to 8 ramp/soak segments in each profile.

Control may automatically start Manual, Timer, or

Profile mode based on a preset time and day. Requires the optional real-time clock feature.

Setup Mode

The control has a Setup Mode which provides access to control configuration and programming of profiles. The Setup Mode contains ten separate electronic Pages where the configuration and programming parameters (Menu items) are found. The Setup Mode Pages are described in detail elsewhere in this manual.

Fast Start Mode

The Protocol Plus control has the ability to automatically start an operating mode when power is applied. This feature may be useful if the same mode of operation is used everyday. The user can turn on the power and the oven will start the desired process automatically. The Fast Start Mode is controlled by the Power-Up Start parameters on the Control page (see Setup Mode).

High Limit

The control has an integrated high limit function which will disable the heater output when tripped. If the high limit does trip, the relay will need to be manually reset. When the high limit relay is tripped, the Hi-Limit indicator will be lit. Allow the oven to cool several degrees (or increase the high limit setpoint) and then press the Reset key. The indicator will turn off.

The control will not allow the high limit setpoint to be set below the current setpoint value.

Indicators

The Protocol Plus control has 12 indicating LEDs that provide operational information to the user.

Power LED:

Heater LED:

Profile LED:

Timer LED:

Manual LED:

Cycle Complete LED:

Hi-Limit Alarm LED:

Soak Alarm LED:

condition.

Outputs 1 through 4:

These outputs may be configured as timed event outputs, process temperature trip point outputs, alarm outputs, or as an end of cycle relay output. The ON state can be configured as energized or de-energized.

Indicates that power is supplied to the instrument.

Indicates that the heater output is active. Indicates that the Profile Mode is in operation.

Indicates that the Timer Mode is in operation.

Indicates that the Manual Mode is in operation.

Indicates that the control is in Stopped mode.

Indicates that the high limit relay has tripped (de-energized).

Indicates that the guaranteed soak deviation is in alarm

Indicate that the optional relay outputs are in the ON state.

Displays

The Protocol Plus control has two displays. A dedicated LED upper display shows the oven temperature. A two-line LCD lower display provides information on control status and allows changes to be made to the control settings.

Key Functions

The Protocol Plus control has seven keys that provide operation.

•

Select key:

number or relay. In Profile/Run Mode, press simultaneously with the UP key to advance a segment.

Run/Hold key:

Mode is running, pressing the Run/Hold key will place the Profile (or Timer) in Hold status. A subsequent press will resume the Profile (Timer).

Stop key:

Page/Reset key:

configuration, Press this key to silence an alarm if the instrument alarm sounds during operation. In an operating mode, if an alarm or error condition occurs, press this key to return the instrument to normal operation once the condition is cleared.

Menu/View key:

display the high limit setpoint. While in Setup Mode, pressing this key will provide access to each Menu parameter.

keys:

Mode, press to select profile to run. In Profile/Run Mode, press key simultaneously with the Select key to force the program to advance one segment.

Press to select mode of operation. In Setup Mode, to select profile

Press to activate a mode of operation. If a Profile (or Timer)

Press to stop any mode of operation.

While in Setup Mode, press to access different Pages of

While running any operating mode, pressing this key will

Press these keys to adjust parameter settings. In Profile/Stopped

Outputs

The Protocol Plus control has seven different outputs available.

•

Heating output:

is time-proportioned and designed to control a heat control device such as a solid state relay.

•

High limit:

normal operating conditions. If the control senses a temperature higher than the high limit setpoint, or if there is a sensor error, the high limit relay will de-energize until the condition is cleared and the Reset key is pressed. When the high limit relay is de-energized, the heater is disabled.

•

Retransmission:

(DC) signal that is proportional to the process temperature. The signal can be an input to other devices such as a chart recorder.

•

Relay (four optional outputs):

configured to function as alarms, events, or end of cycle. These outputs can be utilized in Manual, Timer, or Profile Mode.

The high limit output is a form C relay which is energized under

The control output is a DC voltage open-collector output which

The retransmission output is a DC 0 to 5 volt or 4 to 20 ma

The four form A dry contact relay outputs can be

Layout for Optional Components

Relay

Use the Relay Card Optional Ay p/n 144562 to add relays to the standard controller. Each relay card contains two relays (maximum of two cards Ay’s allowed).

(Continued)

Communication

The Protocol Plus control has optional MODBUS communication available which can communicate via RS232, RS422, or RS485 to a computer. See communications option assembly p/n 141877 for board and cable assembly. Please refer to the MODBUS communications manual which comes with this option.

Optional Software

The Protocol Manager program allows the operator to start/stop multiple ovens (32 maximum) from a personal computer. A data log can also be used to record process information (p.n. 140008).

INSTRUCTIONS Start-Up

These instructions are provided as a quick reference for operating the Protocol Plus control. If the Profile Mode is to be used, or the configuration of the control needs to be changed, please refer to the Setup Mode instructions before operating the control. For more detailed operating instructions refer to the Operation instructions for the mode you wish to use.

Upon initial power-up the control is in Manual/Stopped Mode (unless the Autostart or Fast Start Modes are active). To activate any operating mode from Stopped Mode, press the Select key until the desired mode is displayed, then press the Run key. If the proper Profile number is not displayed when the Profile Mode is accessed, press the or keys until the desired Profile number is displayed, then press the Run key. If no profile numbers can be displayed (display only reads NONE) then no profiles are currently programmed (see Setup Mode).

The temperature setpoint can be adjusted while Manual or Timer Mode is running by pressing the UP or DOWN key.

To momentarily hold the Timer or Profile Mode, press the Hold key. To continue the Timer or Profile Mode, press the Run key.

To return to Stopped Mode at any time, press the Stop key and the cycle complete LED will illuminate.

Note that the control can be configured to automatically activate Manual, Timer or Profile Mode when power is applied (power switch turned on). See Control Page in the Setup Mode to utilize the Fast Start mode.

Operation

Manual Mode

Press the Select key until Manual is displayed (note you can press the Run key at any time to activate Manual Mode).

1. Press the Menu key to display the Process Temperature Setpoint (setpt). You can change the Setpoint with the keys.

Note:

set to DISABLED, it must be changed to ENABLED before any changes to the process temperature and high limit setpoints can be made.

2. Press the Menu key a second time to display current high limit setpoint (Hi-Lim SP). The value can be adjusted by pressing the keys. If the high limit band feature is activated (see Control page) and the high limit can not be adjusted.

3. (optional feature) Press the Menu key a third time to display Event1. Press the key to turn on the event or to turn off the event. Repeat for all events which are enabled (up to 4).

4. To start Manual Mode, press the Run key.

The display will change from Stop to Run. To return to Stopped Mode, press the Stop key. While in operation, the process setpoint can be adjusted by using the

will display the High Limit Setpoint (HLSP) setting.

If changes to the high limit setpoint or event output configuration are needed, they must be done from the stopped mode.

If the SPChange parameter on the Enable page in Setup Mode has been

Band

keys to change the value while the mode is running. Pressing the Menu key

is displayed,

Timer Mode

1. Press the Select key until Timer is displayed (note you can press the Run key at any time to activate Timer Mode).

2. Press the Menu key to display the Process Temperature Setpoint (Setpt). You can change the Setpoint with the keys.

Note

that if the SPChange parameter on the Enable page in Setup Mode has been set to DISABLED, it must be changed to ENABLED before any changes to the process temperature and high limit setpoints can be made.

3. Press the Menu key a second time to display current high limit setpoint (Hi-lim SP). The value can be adjusted by pressing the keys. If the high limit band feature is activated (see Control page) and the high limit can not be adjusted.

4. Press the Menu key a third time to display Time Set. You can change the time setting with the keys.

5. (optional feature) Press the Menu key a fourth time to display Event1. Press the

key to turn on the event or to turn off the event. Repeat for all events which

are enabled (up to 4).

6. Press the Menu key a fifth time to display the current guaranteed soak band (TmrGuarSoak) value. If the process temperature deviates from the setpoint by more than this value, the timer is placed in a hold condition. The timer continues when the process temperature falls within range. Reference the Quick Reference and Default Values section for available settings.

7. To start Timer Mode, press the Run key. The display will change from Stop to Run and the time remaining will be

displayed. To return to Stopped Mode, press the Stop key. While in operation, the process setpoint can be adjusted by using the keys to change the value while the mode is running. Pressing the Menu key will display the High Limit Setpoint.

Pressing the Run/Hold key while the Timer Mode is in operation will put the control in Hold status. The Timer LED will flash to indicate the held status. Press the Run/Hold key again to continue timing. The Timer LED will return to lit status.

Band

is displayed,

Profile Mode

1. Press the Select key until Profile is displayed. “None” may be displayed if a profile has not been selected or no profiles entered.

2. Press the key to display the desired profile to run.

3. To start Profile Mode, press the Run key.

The display will change from Stop to Run and the segment time remaining, Temperature Setpoint, Profile #, along with the current segment number, will be displayed. To return to Stopped Mode, press the Stop key.

Pressing the Run/Hold key while the Profile Mode is in operation will put the control in Hold status. Press the Run/Hold key again to continue the mode. The Profile LED will flash to indicate the hold status.

To advance to the next segment while running a profile, press the Select and UP arrow keys at the same time.

Note that ramping down too fast may cause the high limit relay to trip unexpectedly if the high limit band feature is used. This can be avoided by using a separate cooling profile that does not utilized the high limit band and then jumping to that profile to perform rapid cooling.

Auto Start Mode

The Auto Start Mode allows the control to start Manual, Timer, or Profile mode automatically at a preset time and day. See the Auto Start Page in Setup Mode for the time, day, and operating mode settings. The Auto Start Mode requires the optional Real Time Clock feature for operation.

To activate the Auto Start Mode, the control must first be in Stopped Mode.

1. Press the Select key until Auto Start is displayed.

2. Press the Menu key.

3. Press the keys to activate or deactivate the Auto Start feature.

Note that once you activate Auto Start, you can continue to use all operating modes as normal. If an operating mode is running at the time of a preset Auto Start function, and Auto Start is activated, the existing operating mode will override the auto Start function and the Auto Start will not turn on. To use the Auto Start for the next day, the auto start must show in the LCD display that it is active.

Setup Mode

Configuration of the control and programming of the ramp/soak profiles must be done in the Setup Mode. To access Setup Mode, the control must first be in Stopped Mode.

1. Press the Select key until Setup is displayed.

2. Press the Page key and Security will be displayed.

3. Press the Menu key and Password will also be displayed. Use the keys to enter the proper password.

4. Once the proper password is displayed, press the Page key twice to enter the Setup Mode.

To exit Setup Mode, press and hold the Page key for three seconds. The control has two levels of password-protected security. Level one provides access

only to those menu pages that are enabled on the Enable page. Level two provides access to all menu pages, including the Enable page. The default security password values are 1 for level one and 2 for level two.

If an improper password has been entered, the control will remain at the Security display. To enter the proper password, press the Menu key. To exit Setup Mode, press and hold the Page key for three seconds.

Mapping of the Setup Mode is provided in the following sections. To access each parameter Page, which are described in detail in the following sections, press the Page key until the desired page heading is displayed. Press the Menu key to access each Menu parameter. Press the keys to change Menu parameter settings.

Refer to the Quick Reference and Default Values section for available settings for each Menu parameter.

Press the Page key to continue with each Page, or press and hold the Page key for three seconds to exit Setup Mode.

Instructions for Setup Mode Pages

Program Page

Programming of the profiles is provided on the Program Page. Eight profiles are available with up to eight ramp and soak segments per profile.

If the optional relay outputs are installed, they must be configured as alarms or events on the Relay Outputs Page before they can be utilized. If configured as event outputs, these relays can be used as time or temperature events.

When entering the Program Page, press the Select key to select the profile you wish to enter/edit, then press the Menu key. The first parameter (Profile #, Segment 1, Ramp Time) will display. Adjust the time value with the keys. Once the proper value is displayed, press the Menu key to continue. Continue with the Menu key to adjust/view each parameter.

If the ramp time value of the current segment is left at 0:00, the next press of the Menu key will advance the control to the High Limit Setpoint parameter for that profile. Continue entering / verifying all parameters until you get to the last parameter (Guaranteed Soak Band). Once all parameters have been properly entered, press the Page key to return to the top of the Profile Page. You can press the Select key to enter/edit another profile, press the Page key to access another page, or press and hold the Page key to exit Setup mode.

While editing any profile, pressing the Select key will advance the control to the time value for the next segment, until the last segment has been reached. This allows faster editing of the profile rather than pressing the Menu key to advance past each parameter.

To run a profile indefinitely, link the profile to itself.

Menu Item Display Description Ramp Time Seg 1 Pro-1 Seg-1 Ramp Time Ramp time for segment 1 of profile

Event 1 Set Value* Pro-1 Seg-1 Ramp Event 1 Event 1 setting for segment 1 ramp of profile Event 2 Set Value* Pro-1 Seg-1 Ramp Event 2 Event 2 setting for segment 1 ramp of profile Event 3 Set Value* Pro-1 Seg-1 Ramp Event 3 Event 3 setting for segment 1 ramp of profile Event 4 Set Value* Pro-1 Seg-1 Ramp Event 4 Event 4 setting for segment 1 ramp of profile Soak Temp Seg 1 Pro-1 Seg 1 Soak Temp Soak temperature for segment 1 of profile Soak Time Seg 1 Pro-1 Seg 1 Soak Time Soak time for segment 1 of profile Event 1 Set Value* Pro-1 Seg-1 Soak Event 1 Event 1 setting for segment 1 soak of profile Event 2 Set Value* Pro-1 Seg-1 Soak Event 2 Event 2 setting for segment 1 soak of profile Event 3 Set Value* Pro-1 Seg-1 Soak Event 3 Event 3 setting for segment 1 soak of profile Event 4 Set Value* Pro-1 Seg-1 Soak Event 4 Event 4 setting for segment 1 soak of profile (repeat for segments 2-8, until ramp or soak time = 00:00) High Limit Setpoint Pro-1 Hi-Lim SP High limit setpoint for profile** Loop From Pro-1 Loop From Seq To start a loop action in a profile Loop To Pro-1 Loop To Seq To end a loop action in a profile Loop Count Pro-1 Loop Number Number of times to execute loop Profile Link Pro-1 Link To Pro To jump from this profile to another Guaranteed Soak Pro-1 Guar Band Guaranteed soak band for profile

See the definitions on the following pages for parameter ranges.

* only available if optional relay outputs are installed (repeat all for profiles 2-8) ** Set to

Band

to use the high limit band feature

Profile #

There are eight profiles available.

Segment#

Ramp Time

EV1 through 4

Soak Temp.

Soak Time

EV1 through 4

Recipe segments 1 through 8 may be programmed, each with its own set of events, ramp and soak times, and soak temperature.

The time required to ramp from one setpoint up to another setpoint. Values between 0 and 99:59 are allowable. In the Protocol Plus controller, the profile ramp and soak times are stored without units. Units are set as either hours and minutes (HH:MM) or minutes and seconds (MM:SS). The setpoint will automatically increment from the actual temperature to the soak temperature.

From 1 to 4 events may be programmed into the ramp time portion of each segment here. These typically involve actuating/disabling relays to close/open valves or perform other relay-controlled functions. NOTE: These will only actuate when the controller has the relay cards installed and programmed for an event.

The temperature setpoint of a particular segment is entered here; it can range from -18 to 540 degrees C (0 to 1000 degrees F).

The duration of soak is entered here; the value can range from 0 to 99:59.

From 1 to 4 events may be programmed into the soak portion of each segment here. These typically involve actuating/disabling relays to close/open valves or perform other relay-controlled functions. NOTE: These will only actuate when the controller has the relay cards installed and programmed for an event.

Hi Limit SP

Loop From Loop To Loop Number

Profile Link

Guaranteed Soak Band

The high limit setpoint may be entered here; if the temperature exceeds this value, the hi-limit will alarm and shut off the heater.

Values are No, Seq-1 to Seq-8. Values are No, Seq-1 to Seq-8. Values are 0 - 99.

These values enable the operator to jump from a certain step to another step of the recipe a preset number of times.

Values are STOP/HOLD/1 - 8. When the profile ends, the profile can turn the heater off, hold the temperature setpoint at the end of the profile, or jump to another specified profile.

If the process temperature deviates from the setpoint by more than this value, the soak timer is placed in a hold condition. The timer continues when the process temperature falls within range.

Sample Profile

Programming Table Profile Number

Segment

Time

1 01h00 100 01h00 2 02h00 50 00h01 3 00h00 4 5 6 7 8

High Limit Setpoint 115

Loop From Seq No

Loop To Seq No

Loop Number 0

Link To Pro No

Guar Soak Band 10

____1______

Ramp

Events

Profile Name

Temp-

erature

__________

Time

Soak

Events

Auto Start Page (optional)

If the optional real time clock has been installed, the Auto Start Page can be configured to automatically start Manual, Timer or Profile Mode at a specified time and day. Note that if Auto Start Enable is set to Yes in the Setup Mode, the Auto Start feature is not turned on - it is available to the operator to be activated in Stopped Mode.

To configure the Auto Start feature:

1. Access the Setup Mode.

2. Press the Page key until Auto Start is displayed.

3. Press the Menu key. If there is no change in the display, the controller may not have the realtime clock option.

4. Set Auto Start Enable to Yes.

5. Using the Menu key, scroll through the options available and use the keys to set the mode desired for each day of the week. You may select from Manual, Timer, or Profile 1 through 8.

6. When the mode is set press the Menu key.

7. Enter the time of day you wish the mode to activate.

8. Continue through the rest of the week by pressing the Menu key, or press the Page key when done.

One Auto Start mode can be set for each day of the week. Exit the Setup mode by pressing and holding the Page key for three seconds. Press the Select key until Auto Start is displayed. Make sure the correct time and day is displayed. If not proper, set it to the correct time on the Real Time Clock Page in the Setup mode. Press the Run key to activate Auto Start. The display will change from Stop to Active. When the preset time and day occurs, the appropriate operating mode will start. You can de-activate Auto Start by pressing the Select key until Auto Start is displayed, then pressing the Stop key.

Note that once you activate Auto Start, you can continue to use all operating modes as normal. If an operating mode is running at the time of a preset Auto Start function, and Auto Start is activated, the existing operating mode will override the Auto Start function and the Auto Start will not turn on.

Menu Item Display Description Range Enable

Autostart Sunday mode Sunday time Monday mode Monday time Tuesday mode Tuesday time Wednesday mode Wednesday time Thursday mode Thursday time Friday mode Friday time Auto Start Fri

Saturday mode Saturday time

Auto Start Enable Enable (yes) or disable (no) the Auto Start Sun

Mode Auto Start Sun Time Auto Start Mon Mode Auto Start Mon Time Auto Start Tue Mode Auto Start Tue Time Auto Start Wed Mode Auto Start Wed Time Auto Start Thu Mode Auto Start Thu Time Auto Start Fri Mode

Time Auto Start Sat Mode Auto Start Sat Time

No, Yes Autostart function Set mode on Sunday to activate Off, Manual, Timer, Pro-1 to Pro-8

Set time on Sunday for mode to activate Set mode on Monday to activate Off, Manual, Timer, Pro-1 to Pro-8

Set time on Monday for mode to activate Set mode on Tuesday to activate Off, Manual, Timer, Pro-1 to Pro-8

Set time on Tuesday for mode to activate Set mode on Wednesday to activate Set time on Wednesday for mode to activate Set mode on Thursday to activate Off, Manual, Timer, Pro-1 to Pro-8

Set time on Thursday for mode to activate Set mode on Friday to activate Off, Manual, Timer, Pro-1 to Pro-8

Set time on Friday for mode to activate Set mode on Saturday to activate Off, Manual, Timer, Pro-1 to Pro-8

Set time on Saturday for mode to activate

00:00 to 23:59

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

PID Page

The PID Page contains parameters which control the response to the setpoint and process variable input. To access the PID Page, enter the Setup Mode (see description earlier in this manual). Press the Page key until PID is displayed. Press the Menu key. Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the keys to change the value.

Menu Item Display Description Range Display units PID Temp Unit Set display units to °C or °F °C or °F Proportional

band Integral reset PID

Derivative Rate AutoTune PID AutoTune Enable auto tuning function Disable, Enable

PID Prop Band Set proportional band for tuning 1 to 56°C (1 to 100°F)

Set integral reset for tuning 0 to 100 seconds/repeat Reset/Rep/Min PID Rate In Sec Set derivative rate for tuning 0 to 500 seconds

The AutoTune parameter disables or enables the AutoTune function. To utilize AutoTuning:

1. Access the Setup Mode.

2. Press the Page key until the display reads AutoTune. Press the key to enable the AutoTune.

3. Press the Page key for three seconds to exit Setup Mode.

4. Cycle power to the instrument.

5. Set Manual Mode to run. The display will alternately display AutoTune and Manual.

If the Manual Mode setpoint is less than 50 degrees higher than the actual process temperature, the AutoTune function will create an error condition. This can be cleared by either cooling off the process temperature or increasing the setpoint until there is more than 50 degrees between them. Once the AutoTune function is allowed to complete tuning, the AutoTune parameter will disable by itself.

If you wish to cancel the AutoTune function, press the STOP key, access the PID page in Setup Mode, and set the AutoTune parameter to Disable.

Control Page

The Control Page contains various parameters which control miscellaneous functions. To access the Control Page, enter the Setup Mode. Press the Page key until Control is displayed. Press the Menu key. Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the keys to change the value.

Menu Item Display Description Range Cycle Time Control Cycle

Time Sec High limit setpoint High limit band

Power fail recovery Recovery time limit

Powerup start enable Powerup Start Mode Hysteresis Control

Process out low Process out high Time scale Control

Key press beep End of cycle beep Alarm beep Control

Control Hi-Lim

SP***

Control Hi-Lim

Band

Control PwrFRec Controls response to loss of

Control

PFRTime****

ControlPwrUpStrt Allows mode to automatically

Control StrtMode Operating mode for powerup start

Hysteresis

Control

RetOutLo

Control RetOutHi Process value for retransmit

TimeScale

Control KeyBeep Internal beeper sounds when key

Control

EOCBeep

AlarmBeep

Set cycle time in seconds for control output Maximum value for all high limit setpoints If=0, high limit setpoint= Control Hi-Lim SP If>0, high limit setpoint= Control SP* + Band

power Control aborts to Stopped mode if power is lost for time period longer then set value

start when power is first applied

Hysteresis for all alarms and temperature events Process value for retransmit output = 1VDC

output = 5VDC Time scale setting for program and timer mode**

is pressed Internal beeper sounds at end of cycle Internal beeper sounds for alarms

1 to 60 seconds

MinHiLimSP - MaxHiLimSP*

Off, 3°C to 11°C (5°F to 20°F)

Stop, Restart, Hold, Resume

00m00s to 99m59s

Disable, Enable

Off, Manual, Timer, Pro-1 to Pro-8

1°C to 56°C (1°F to 100°F)

-73°C to 760°C (-100°F to 1400°F)

hh:mm or mm:ss

On or Off

* includes ramping setpoints during profiles and controlled ramps ** power fail recovery time limit is always MM:SS regardless of time scale setting *** high limit setpoint is a read-only item which is calculated on Enable page **** requires real-time-clock feature

Communication Page (optional)

The Communication Page contains parameters for the communications feature. To access the Communications Page, enter the Setup Mode (see description earlier in this manual). Press the Page key until Communication is displayed. Press the Menu key. Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the keys to change the value.

Menu Item Display Description Range Address Communication CommAddr Sets address node for

control

Mode Communication Mode Turns on/off

communications

Baud Rate Communication BaudRate Sets interface speed 2400, 4800, 9600, 19.2K, Parity Communication Parity Sets parity for interface None, Odd, Even

1 to 255 OFF, Modbus

38.4K

Real Time Clock Page (optional)

The Real Time Clock Page allows the control to be configured to have an operating mode begin automatically at a specific time on a specific day of the week. The real time clock feature is required for using the Power Failure Recovery mode Time Limit feature (see Control Page). The real-time-clock is a seven day, 24 hour clock with battery backup.

To access the Real Time Clock Page, enter the Setup Mode. Press the Page key until Clock is displayed. Press the Menu key. (If there is no change in the display, the controller may not have the realtime clock option.) Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the

keys to change the value.

Menu Item Display Description Range Day of the

week Time of day Reset clock

Clock Day Setting for current day of the week Sun, Mon, Tue, Wed, Thu, Fri, Sat Clock HH:MM Setting for current time of the day 00:00 to 23:59 Clock UP to

Reset CLK*

Press the key to set the clock to entered values

Ready, Done

* If the key is not pressed, the clock values will retain their original values. The display will change to Done if the clock is reset

Relay Outputs Page (optional)

The Relay Outputs Page configures the four alarm/event outputs. Each output has a dedicated indicator light and can be configured as a temperature alarm, profile event, or end of cycle output. Temperature alarms can be of type process high, process low, deviation high, deviation low, or deviation band.

To access the Relay Page, enter the Setup Mode (see description earlier in this manual). Press the Page key until Relay is displayed. Press the Select key until the desired relay output is selected. Press the Menu key. Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the keys to change the value. To configure a specific relay, press the Select key until the desired relay appears.

NOTE: If Relay 0 appears, then no relays are installed (see relay kit assembly p.n.

144562).

Menu Item Display Description Range Type of relay Relay 1

RelayType

Action of relay Relay 1

RelayAction Type of alarm* Alarm setpoint* Alarm deviation* Inhibit alarm* Relay 1

Type of event** Event setpoint***

Relay 1

AlarmType

Relay 1 AlmHi/Lo

Relay 1

AlmDevBand

ALMInhibit

Relay 1

EventType

Relay 1 Event SP Setpoint for temperature event SPLoLim to SPUpLim****

(repeat for relay outputs 2-4, if available) * appears only for alarm types

** appears only for time or temperature event types *** appears only for temperature event types

Turning on the Alarm Inhibit function disables the alarm output on power up until the process temperature has reached a non-alarming condition ("safe").

If the relay output has been configured as latching, the RESET key must be pressed to return the output to the non-alarm state once the alarm condition has cleared.

Set function of relay Off, Alarm, Cycl, Ev1 to Ev4 Set coil and contact state of

relay Set alarm type for relay High, Low, Plus, Minus, Band

Setpoint for alarm Deviation band for alarm 1 to 56°C (1 to 100°F) Inhibits alarm until "safe"

condition is reached Set event type for relay Time or Temp

NDE, NE, NDEL, NEL*****

-73°C to 760°C (-100°F to 1400°F)

En or Dis

Test Page

The Test Page contains parameters which allow manual control of the heat control and optional relay outputs and should be used only for testing the functionality of the control instrument. Do not operate the oven for processes using the Test Page.

To access the Test Page, enter the Setup Mode (see description earlier in this manual). Press the Page key until Test is displayed. Press the Menu key. Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the keys to change the value.

Menu Item Display Description Range

Heater output High limit relay Relay 1 output Relay 2 output Relay 3 output Relay 4 output HiLim Sensor

Test HeatOut Activate SSR output 100% Test HiLimOut Activate high limit alarm

(de-energize relay)

Test Rly1 Out Energize relay output 1 Test Rly2 Out Energize relay output 2 Test Rly3 Out Energize relay output 3 Test Rly4 Out Energize relay output 4 Test HL Temp

(push and hold up)

Displays sensor reading*

*Push key to refresh display When the Test Page is entered, all outputs are automatically set to off. When exiting

the Test Page, all outputs will return to their previous condition regardless of the Test Page settings.

Zone Calibration Page

The Zone Calibration Page allows adjustment of the displayed temperature versus the actual temperature measured by the control thermocouple. This may be desirable in certain conditions where the center of the oven chamber is not the same temperature as the control thermocouple. This may occur when the oven is not allowed to soak at a constant temperature for long periods of time, or the oven is being used at high temperature.

There is also a Factory Calibration Recovery which will restore the factory calibration values when the control was first shipped by the manufacturer. This may be helpful if the calibration has been lost and a calibration instrument is not readily available. To use the Factory Calibration Recovery feature only, bypass the Zone 1 and Zone 2 calibration parameters by pressing the Menu key.

To access the Zone Calibration Page, enter the Setup Mode (see description earlier in this manual). Press the Page key until Zone Cal is displayed. Press the Menu key. Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the keys to change the value.

Menu Item Display Description Range Zone 1 actual Zone1 displayed Zone 2 actual Zone2 displayed Factory calibration*

Zone Cal Zone1Act Zone Cal Zone1Dis Zone Cal Zone2Act Zone Cal Zone2Dis Zone Cal FactCal

Point at which Zone 1 is set (center of chamber) Desired displayed value for Zone 1 setting Point at which Zone 2 is set (center of chamber) Desired displayed value for Zone 2 setting Restores the factory calibration values

-73°C to 760°C (-100°F to 1400°F)

Ready or Done (push- key)

*Only use when no calibration instrument is available, push key to restore factory values.

Press the Page key to exit the Zone Calibration Page. Two points of display calibration (temperature offset) are available. The Zone 1 Actual

and Zone 2 Actual parameters are the two temperature points where the offset is to take effect. These values are adjustable. The Zone 1 and Zone 2 Displayed parameters are the values the user wishes to have displayed at the Actual temperatures, and are also adjustable.

As an example, the control is displaying 400°F with the setpoint being 400°F, but the center of the oven chamber is actually 395°F. This can occur due to oven wall losses and product loading variations. The operator may change the zone calibration so that the center of the oven is 400°F when the display reads 400°F. In this case operate the oven in manual mode with a setpoint of 400°F. Recor d the center of the chamber (as measured with an independent sensor). Access the Zone Calibration Page and enter this measured value as the Zone 2 Actual value, with 400° as the Zone 2 Displayed value.

Zone 1 can be adjusted using the same method at a lower temperature. The instrument will then create a linear offset based on the Zone1 and Zone 2 Actual temperature values. Note that the oven does not have to be heated to adjust the zone parameters if the zone values are known based on prior experience.

Sensor Calibration Page

The Sensor Calibration Page has parameters which can change the internal calibration of the temperature sensor input signal. There is a low and high calibration point for both the control sensor and the high limit sensor. To calibrate the instrument, allow the control to warm up for at least 30 minutes.

To access the Sensor Calibration Page, enter the Setup Mode (see description earlier in this manual). Press the Page key until Control Sensor is displayed. Press the Menu key.

The control may have the optional process value retransmission output feature. The output is a 1 to 5VDC signal. To calibrate the retransmit signal, the RetOutLo and RetOutHi values from the Control Page must be known. You may bypass calibrating the control and high limit sensor input to access only the retransmit calibration by pressing the Menu key until RetCalLo is displayed (skip steps 4-17).

To re-calibrate the instrument:

1. Disconnect the control and high limit sensor thermocouples.

2. Connect a calibration instrument with a type J thermocouple output to the control sensor input. Allow the control to warm up at least 30 minutes.

3. Access Setup Mode.

4. Press Page key until

5. Press Menu key until

6. With

7. Wait 30 seconds. Press the key.

8. With

9. Wait 30 seconds. Press the key.

10. When the control displays

11. Press the Menu key until

12. With the control displaying

13. Wait 30 seconds. Press the key.

14. With the control displaying

15. Wait 30 seconds. Press the key.

16. When the control displays

17. To skip calibration of the retransmit signal, press the Page key twice to exit the

18. To calibrate the retransmit signal, press the Menu key until

Ctrl Sens -100F

thermocouple, -100 degrees Fahrenheit output.

Ctrl Sens 1400F

degrees Fahrenheit output (Type J thermocouple).

instrument from the control sensor input and connect it to the high limit sensor input. Reconnect the control sensor thermocouple.

to -100 degrees Fahrenheit output (Type J thermocouple).

to 1400 degrees Fahrenheit output (Type J thermocouple).

instrument from the high limit sensor input. Re-connect the high limit sensor thermocouple.

Sensor Calibration Page. displayed.

-100F

is displayed.

Ctrl Sens -100F

displayed, adjust the calibration instrument to Type J

displayed, adjust the calibration instrument to 1400

Ctrl Sens Done

HL Sens -100F

HL Sens 1400F

HL Sens Done

is displayed.

, disconnect the calibration

is displayed.

, adjust the calibration instrument

, disconnect the calibration

RetCalLo

19. Connect a calibration instrument with a type J thermocouple output to the control sensor input.

20. Connect a voltage measurement device to the retransmit output terminals.

21. Set the calibration instrument output to the temperature value of the

RetOutLo

parameter from the Control Page.

22. Adjust the

RetCalLo

* value using the keys until the voltage measurement

device reads 1VDC.

23. Press the Menu key.

24. Set the calibration instrument output to the temperature value of the

RetOutHi

parameter from the Control Page.

25. Adjust the

RetCalHi

* value using the keys until the voltage measurement

device reads 5VDC.

26. Press the Menu key.

27. Press the Page key to exit the Sensor Calibration Page.

28. Calibration is now complete. Disconnect the calibration instrument and voltage measurement device (if used).

29. Verify that the control and high limit sensor thermocouples are connected.

Menu Item Display Description Range Control Sensor Cal

HiLim Sensor Cal

Retransmit Cal RetCalLo XXXX *

Ctrl Sens -100F Ctrl Sens 1400F Ctrl Sens Done HL Sens -100F HL Sens 1400F HL Sens Done

RetCalHi XXXX *

Calibrate Sensor Low End Calibrate Sensor High End Control Sensor Cal Complete Calibrate HiLim Sensor Low End Calibrate HiLim Sensor High End HiLim Sensor Cal Complete Calibrate Retransmit Output Low Calibrate Retransmit Output High

-100 to 1400°F

-100 to 1400°F (read only)

-100 to 1400°F

-100 to 1400°F (read only)

0 to 4096** 0 to 4096***

*Note that the actual RetCalLo and RetCalHi values displayed are of no importance.

Enable Page

The Enable Page controls access to the other Setup Pages. The setpoint minimum and maximum values, and the security passwords are also set on the Enable Page. To access the Enable Page, enter the Setup Mode using a level 2 access code (see description earlier in this manual). Press the Page key until Enable is displayed. Press the Menu key. Each parameter can be changed by pressing the Menu key until the desired parameter is displayed, and then pressing the keys to change the value.

NOTE: Changing the enable to “yes” for each page will allow access to the page in Level 1 security.

Menu Item Display Description Range Profiles Enable Profile

1-8

Autostart Enable Auto

Start

PID Enable PID Controls access to PID Page Yes or No Control Enable Control Controls access to Control Page Yes or No

Controls access to Program Page Yes or No Controls access to AutoStart

Page

Yes or No

Communication Enable

Communication Real Time Clock Relay outputs Enable Relay

Test Enable Test Controls access to Test Page Yes or No Zone

Calibration Sensor Calibration Setpoint lower limit Setpoint upper limit High limit overhead Password level 1 Enable

Password level 2 Enable Setpoint

Change

Analog Output Type

Enable Clock Controls access to Real Time

1-4

Enable Zone

Cal

Enable Sensor

Cal

Enable

SPLowerLim

Enable

SPUpperLim

Enable

HiLimOH

Password 1

Password 2

Enable

SPChange

Enable Analog

Type

Controls access to Communication Page

Clock Page Controls access to Relay Page Yes or No

Controls access to Zone Calibration Page Controls access to Sensor Calibration Page Sets minimum setpoint allowed

Sets maximum setpoint allowed Sets maximum high limit setpoint

allowed* Sets password for access level 1 0 to 1000

Sets password for access level 2 0 to 1000 Set to DISABLE to lock out

setpoint and high limit setpoint changes in Manual and Timer Modes Sets Analog Output type Ctrl or Proc

Yes or No Yes or No

-73°C to 760°C (-100°F to 1400°F)

3 to 11°C (5 to 20°F)*

Yes or No

* Maximum high limit setpoint = SPUpperLim + HiLimOH

Digital Inputs (optional)

The Protocol Plus control can be run by external inputs wired to the control from an external source such as a PLC or control panel switches. The external run operation can Run, Hold or Stop profiles 1 through 7 (profile 8 can not be operated externally). Refer to the table below for the inputs required for the desired operation. NOTE: A profile must be created in the program page before trying to run a profile number.

Input 1 Input 2 Input 3 Profile Selected ON OFF OFF 1

OFF ON OFF 2 ON ON OFF 3 OFF OFF ON 4 ON OFF ON 5 OFF ON ON 6 ON ON ON 7 OFF OFF OFF none

To start the selected profile, set Input 1, 2, 3 or 4 to ON. To hold a profile, set Input 4 to OFF. To stop a profile, set all inputs to OFF.

Digital Inputs

Error Messages and Alarms

The Alarm Status thermocouple, or the Hi-limit setpoint has been exceeded. Once the problem has corrected, press the Reset pushbutton.

The Alarm Status not entered or dropped out of the soak band and the soak timer has stopped.

The top LED Display reads thermocouple is disconnected or broken. The lower LCD display should indicate which thermocouple is the problem. Repair or replace the thermocouple.

The lower LCD display reads thermocouple is disconnected or broken. The upper LED display should indicate OPEN showing a thermocouple problem. Repair or replace the thermocouple.

The lower LCD display reads thermocouple is disconnected or broken. Repair or replace the thermocouple.

The lower LCD display reads temperature setpoint has been exceeded. Determine if the setting is set too close to the setpoint, the SSR is defective, or the calibration is incorrect.

Hi-limit

Soak

LED is flashing. This indicates a problem with the

LED is flashing. This indicates that the oven temperature has

OPEN

. This indicates that either the Control or the Hi-limit

CONTROL SENS ERR

HI-LIM SENS ERR

HIGH LIMIT ALARM

. This indicates that the Control

. This indicates that the Hi-limit

Quick Reference and Default Values

Program Page

Menu Item Display Default Range Setting Ramp Time Seg 1 Pro-1 Seg-1 Ramp Time 00:00 00m00s to

Event 1 Set Value Pro-1 Seg-1 Ramp Event 1 Off Off, On Event 2 Set Value Pro-1 Seg-1 Ramp Event 2 Off Off, On Event 3 Set Value Pro-1 Seg-1 Ramp Event 3 Off Off, On Event 4 Set Value Pro-1 Seg-1 Ramp Event 4 Off Off, On

99h59s

Soak Temp Seg 1 Pro-1 Seg 1 Soak Temp 68°F SPLowerLim to

SPUpperLim *

Soak Time Seg 1 Pro-1 Seg 1 Soak Time 00:00 00m00s to

99h59s

Event 1 Set Value Pro-1 Seg-1 Soak Event 1 Off Off, On Event 2 Set Value Pro-1 Seg-1 Soak Event 2 Off Off, On Event 3 Set Value Pro-1 Seg-1 Soak Event 3 Off Off, On Event 4 Set Value Pro-1 Seg-1 Soak Event 4 Off Off, On (repeat for segments 2-8) High Limit Setpoint Pro-1 Hi-Lim SP Max

HiLimSP Loop From Pro-1 Loop From XX No No, Seg-1 to Loop To Pro-1 Loop To XX No No, Seg-1 to Loop Count Pro-1 Loop Number 0 0 to 99

Profile Link Pro-1 Link To XX Stop Stop, Hold, Guaranteed Soak Pro-1 Guar Band Off Off, 1 to 760°C (repeat for profiles 2-8)

MinHiLimSP to MaxHiLimSP *, Band **

Seg-8 Seg-8

Pro-1 to Pro-8 (1400°F)

See Enable Page

Band value is set on Control Page

Programming Table Profile Number

__________

Profile Name

__________

Seg-

ment

Time

Ramp

Events

Soak

Temp-

erature

Time

Events

1 2 3 4 5 6 7 8

High Limit Setpoint

Loop From Seq

Loop To Seq

Loop Number

Link To Pro

Guar Soak Band

Autostart

Menu Item Display Default Range Setting

Enable Autostart

Auto Start Enable

No, Yes Sunday mode Sunday time Monday mode Monday time Tuesday mode Tuesday time Wednesday mode Auto Start Wed Mode Wednesday time Thursday mode Thursday time Friday mode Friday time Saturday mode Saturday time

Auto Start Sun Mode Auto Start Sun Time Auto Start Mon Mode Auto Start Mon Time Auto Start Tue Mode Auto Start Tue Time

Auto Start Wed Time Auto Start Thu Mode Auto Start Thu Time Auto Start Fri Mode Auto Start Fri Time Auto Start Sat Mode Auto Start Sat Time

Off 00:00 Off 00:00 Off 00:00 Off 00:00 Off 00:00 Off 00:00 Off 00:00

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

Off, Manual, Timer, Pro-1 to Pro-8

00:00 to 23:59

PID

Menu Item Display Default Range Setting

Display units Proportional band PID Prop Band Integral reset Derivative Rate AutoTune

PID Temp Unit

PID Reset PID Rate PID AutoTune

°C 6°C 2 0 Disable

°C or °F 1 to 56°C (1 to 100°F) 0 to 100 seconds/repeat 0 to 500 seconds Disable, Enable

Control

Menu Item Display Default Range Setting

Cycle Time

Control Cycle Time 1

1 to 60 seconds High limit setpoint High limit band Power fail recovery Recovery time limit Powerup start enable Control EPwrStrt Powerup Start Mode Control StrtMode Hysteresis Process out low Process out high Time scale Key press beep End of cycle beep Alarm beep

Control Hi-Lim SP Control Hi-Lim Band Off Control PwrFRec Control PwrFTime

Control Hyst Control RetOutLo Control RetOutHi Control TimeScale Control KeyBeep Control EOCBeep Control AlarmBeep Off

Max HiLimSP MinHiLimSP - MaxHiLimSP*

Stop 00m00s Dis Off 3°C 80°C 400°C hh:mm On Off

Off, 3°C to 11°C (5°F to 20°F)

Stop, Restart, Hold, Resume

00m00s to 99m59s

Dis, En

Off, Manual, Timer, Pro-1 to Pro-8

1°C to 56°C (1°F to 100°F)

-73°C to 760°C (-100°F to 1400°F)

hh:mm or mm:ss

On or Off

*see Enable Page

Communication (optional)

Menu Item Display Default Range Setting

Address

Communication CommAddr

1 to 255 Mode Baud rate Parity

Communication CommMode Communication Baud Rate Communication Parity

OFF

19.2K None

OFF, Modbus

2400, 4800, 9600,

19.2K, 38.4K

None, Odd, Even

Real Time Clock

Menu Item Display Default Range Setting

Day of the week Time of day

Clock Day Clock HH:MM

Mon 00:00

Sun, Mon, Tue, Wed, Thu, Fri, Sat 00:00 to 23:59

Reset clock

Clock UP to Reset CLK*

Ready

Ready, Done

* if the key is not pressed, the clock values will retain their original values, the display will change to Done if the clock is reset

Relay Outputs (optional)

Push Select key to select relay. If Relay 0 appears, no relays are installed

Menu Item Display Default Range

Type of relay Action of relay Type of alarm* Alarm setpoint* Alarm deviation* Inhibit alarm* Type of event** Event setpoint ***

Relay 1 RelayType Relay 1 RelayAction Relay 1 AlarmType Relay 1 AlmHi/Lo SP Relay 1 AlmDevBand Relay 1 ALMInhibit Relay 1 EventType Relay 1 Event SP

Off NDE High 538°C 3°C On Time SPUpLim

Off, Alarm, Cycl, Ev1 to Ev4 NDE, NE, NDEL, NEL***** High, Low, Plus, Minus, Band

-73°C to 760°C (-100°F to 1400°F) 1 to 56°C (1 to 100°F) En or Dis Time or Temp

SPLoLim to SPUpLim**** (repeat for relay outputs 2-4, if available) * appears only for alarm types

** appears only for time or temperature event types *** appears only for temperature event types **** see enable page ***** Normally de-energized and non-latching, normally energized and non-latching, normally de-energized and

latching, normally energized and latching

Table of Settings

Relay Type Action Alarm/

Event Type

Setpoint Alarm

Deviation

Alarm Inhibit

Test

Menu Item Display Default Range Setting

Heater output

Test HeatOut

Off

On High limit relay Relay 1 output Relay 2 output Relay 3 output Relay 4 output High Limit Sensor

Test HiLimOut Test Rly1 Out Test Rly2 Out Test Rly3 Out Test Rly4 Out Test HL Temp

Off Off Off Off Off (sensor reading)

Zone Cal

Menu Item Display Default Range Setting

Zone 1 actual Zone1 displayed Zone 2 actual Zone2 displayed Factory calibration* Zone Cal FactCal

Zone Cal Zone1Act Zone Cal Zone1Dis Zone Cal Zone2Act Zone Cal Zone2Dis

38°C

-73°C to 760°C (-100°F to 1400°F)

38°C

-73°C to 760°C (-100°F to 1400°F)

260°C

-73°C to 760°C (-100°F to 1400°F)

260°C

-73°C to 760°C (-100°F to 1400°F)

Ready

Ready or Done (push- key)

*only use when no calibration instrument is available

Sensor Cal

Menu Item Display Default Range Setting

Control Sensor Cal Ctrl Sens 0F

Ctrl Sens 1000F Ctrl Sens Done

HiLim Sensor Cal

Retransmit Cal

* note that the actual RetCalLo and RetCalHi values displayed are of no importance. ** press keys until retransmission output = 1VDC *** press keys until retransmission output = 5VDC

HL Sens 0F HL Sens 1000F HL Sens Done RetCalLo XXXX * RetCalHi XXXX *

-100°F 1400°F Done

-100°F 1400°F Done 0 4096

-100 to 1400°F

-100 to 1400°F (read only)

-100 to 1400°F

-100 to 1400°F (read only) 0 to 4096** 0 to 4096***

Enable Page

Menu Item Display Default Range Setting

Profiles

Enable Profile 1-8

Yes

Yes or No Autostart PID Control Communication Real Time Clock Relay outputs Test Zone Calibration Sensor Calibration Setpoint lower limit Setpoint upper limit High limit overhead Password level 1 Password level 2

Enable Auto Start Enable PID Enable Control Enable Communication No Enable Clock Enable Relay 1-4 Enable Test Enable Zone Cal Enable Sensor Cal Enable SPLowerLim Enable SPUpperLim Enable HiLimOH Enable Password 1 Enable Password 2

No Yes No

No No No No No 20°C 260°C 5°C 1 2

Yes or No

-73°C to 760°C (-100°F to

1400°F)

-73°C to 760°C (-100°F to

1400°F)

3 to 11°C (5 to 20°F)*

0 to 1000

0 to 1000 Manual/Timer mode

setpoint change Analog Output Type Enable Analog Type Proc Ctrl or Proc

Enable SPChange

Yes

Yes or No

* Maximum high limit setpoint (MaxHiLimSP) = SPUpperLim + HiLimOH Minimum high limit setpoint (MinHiLimSP) = SPLowerLim + HiLimOH

Technical Specifications

UL, cUL listed: UL file E136675 CE compliance to:

Power supply:

Temperature:

Humidity: 90% or less, non-condensing Sensor inputs:

Temperature display:

Message display:

Time base: +/- 4 seconds accuracy in 24 hours

• EMC Directive 89-366/EEC

• European Standard EN55011/1991

• European Standard EN50082-2/1995

• 100 to 240 VAC +10% -15%, 50-60Hz, 30VA Maximum

• 12 to 24 VAC/VDC +/-10%, DC to 60Hz, 30VA Maximum

• Storage -20 to 60°C

• Operating 0 to 50°C

• Type J thermocouple

• Input impedance 1M ohm or greater

• Common mode noise rejection of 140db@60Hz

• Common mode input voltage of +/-12.0VDC

• Sample rate of at least 1 sample per second

• Stability of +/- 0.5ΕC per 5ΕC change in ambient temperature

• Repeatability of +/- 0.5ΕC, or +/-0.1% of sensed temperature (whichever is

greater)

• Accuracy (@ 77

• Supply Voltage Influence of +/-0.5ΕC per 10% change in nominal line voltage

• 1 degree resolution (C or F)

• Accuracy after calibration of +/- 1ΕC, or +/-0.2% of sensed temperature (whichever is greater) @25ΕC

• Four-digit seven-segment LCD, 0.43 inches high (11mm)

• Readout Stability (+/-

• Two-line, 16 alpha-numeric 5x7 dot matrix characters per line

• 0.2 inches high (5mm)

-73°C to 760°C (-100°F to 1400°F)

°F +/-0.2 percent of span (+/-3°F)

1°F/10°F Change in ambient temperature)

Heat control output:

Relay output: (plug-in module)

Retransmit output: 0 to 5 VDC into > 100K ohm load or 4-20maDC > 0-800 Ohm Load (+/-0.2% of

Communications: (plug-in module)

Remote inputs: (plug-in module)

Front panel: NEMA 4X (with gasket) Dimensions: 3.57H x 7.24W x 2.84D inches (91H x 184W x 72D mm) Panel opening: 3.63H x 7.30W inches (92H x 185W mm)

SSR Drive 24VDC nominal @ 70mA

Form A dry contact, rated 3 amps @ 24-264VAC

programmed span accuracy, +/- 1LSD)

• RS232 Single drop, isolated

• RS422 Multi-drop, isolated

• RS485 Multi-drop, isolated

Dry-contact closure type with less than 250 ohm ON resistance

Maintenance

Do not attempt any service on this oven before opening the main power disconnect switch.

WARNING

Disconnect the main power switch or power cord before attempting any repair or adjustment.

Checklist

• Keep equipment clean. Gradual dirt accumulation retards airflow. A dirty oven can result in unsatisfactory operation such as unbalanced temperature in the work chamber, reduced heating capacity, reduced production, overheated components, etc. Keep the walls, floor and ceiling of the oven work chamber free of dirt and dust. Floating dust or accumulated dirt may produce unsatisfactory work results. Keep all equipment accessible. Do not permit other materials to be stored or piled against it.

• Protect controls against excessive heat. This is particularly true of controls, motors or other equipment containing electronic components. Temperatures greater than 51.5°C (125°F) should be avoided.

• Establish maintenance & checkup schedules. Do this promptly and follow the schedules faithfully. Careful operation and maintenance will be more than paid for in continuous, safe and economical operation.

• Maintain equipment in good repair. Make repairs immediately. Delays may be costly in added expense for labor and materials and in prolonged shut down.

• Practice safety. Make it a prime policy to know what you are doing before you do it. Make CAUTION, PATIENCE, and GOOD JUDGMENT the safety watchwords for the operation of your oven.

• Lubrication. Fan motor bearings are permanently lubricated. All door latches, hinges, door operating mechanisms, bearing or wear surfaces should be lubricated to ensure easy operation.

Inspection and Cleaning

The purpose of inspection is to determine cleanliness, proper operation and condition of the oven, including its controls indicators and moving parts.

Vents

Make sure intake and exhaust openings are clean and free of blockages. Any dirt accumulation in the air circuit can unbalance temperatures and airflow patterns.

Chamber

Keep perforated panels and other surfaces of the chamber clean. Use a vacuum cleaner to clean perforated panels.

Control Cabinet and Fan

Keep the control cabinet fan and the intake grill clean. Make sure there is a 2-inch clearance behind the oven to provide adequate ventilation.

Remove dust and cobwebs from heat sinks. Control cabinet temperature should not exceed 52°C

(125°F).

WARNING

High voltage is present on terminals inside control cabinet. Turn off main power disconnect before cleaning inside of control cabinet. Do not use any cleaning equipment that may pull wires.

Chamber Door Gasket

Check the gasket on the chamber door as follows.

1. Open the door.

2. Visually inspect the gasket-sealing surface.

3. Squeeze the gasket between your fingers to check for damage and tears.

4. Close the door on a piece of paper at many points around the gasket. The gasket should seal tight enough to require a slight pull to remove the paper.

Recirculation Motor

Fans, motors and shaft should be clean and free of dust and oil or grease. The recirculation motor is permanently lubricated and does not require any lubrication.

Oven Exterior

Clean oven exterior with Dupont No. 7 polish or equal, or with soap and water. Do not clean while the oven is hot. Do not use abrasives or chemicals.

Oven Chamber Interior

Clean the oven interior with soap and water or stainless steel cleaner. Under normal conditions, a major cleaning should be done once a year.

Door Hinges and Latches

Check operation of the chamber door to see whether it opens easily and closes securely, without jerking or slamming.

Automatic Damper

1. Put the oven in operation (without a load in the chamber) and wait until the temperature is stabilized.

2. Set the controller to about 10°C lower.

3. While looking at the damper control motor and linkage, when the setpoint is first turned down, the dampers should move to the wide-open position.

4. Then, as the chamber temperature drops, the dampers should start to close when the difference between the chamber temperature and the setpoint is less than 4°C.

5. When the chamber temperature has dropped between 1°C and 2°C above the setpoint, the damper should be fully closed.

6. At lower chamber temperatures (compared to the setpoint), the damper remains closed and the heater is turned on.

7. Reset the temperature controller.

Controls and Indicators

Check all controls for proper operation. Switches should move easily, indicators should light or give a correct signal, and controls should perform intended function.

Loose Screws, Bolts and Fasteners

Check tightness of all screws, bolts and fasteners. Notice whether the oven vibrates or makes unusual noises while starting, running or stopping. Make sure switches and control knobs and indicators are securely fastened.

Lubrication

Fan motor bearings are permanently lubricated. All door latches, hinges, door operating mechanisms, bearing or wear surfaces should be lubricated to ensure easy operation.

Tests

Tests should be performed carefully and regularly. The safety of personnel as well as the condition of equipment may depend upon the proper operation of any one of the functions of the temperature control. Test the control every 40 hours. Check that the heater LED is cycling on and off, indicating that the heater is working. Also at this time, check the high limit function to make sure it is working properly.

To test the high limit:

1. Go to Manual Mode and enter control setpoint value at least 20°F (11° C) lower than the current process temperature.

2. Press the Menu key and lower the high limit setpoint to a value just below the current process temperature.

3. The high limit alarm indicator should flash and a high limit alarm message should be displayed. Verify that the heater relay has been disabled by checking that 2LED on the control panel circuit board is not lit.

4. Return the control setpoint and high limit setpoint values to their original values.

5. Press the Reset key.

OPTIONAL ACCESSORIES

This section provides operating instructions on the standard options for the RBC1-50 Burn-In oven.

Door Switch

The door switch is wired to shut off the fan and heater. In addition, when the N2 and LN2 options are installed the door switch will shut these down. The door switch may be defeated manually by pulling out the actuator.

WARNING

Disconnect the main power switch or power cord before attempting any repair or adjustment.

WARNING

Do not use oven in wet, corrosive or explosive atmospheres.

Recorder

The circular chart recorder, mounted on top of the oven, is used to record the user’s process. This is done by an independent thermocouple, located next to the control thermocouple. The charts used are 24hr/7day. This option is available in a single pen for stand-alone units or a two pen for units using the stacking option. See the manufacturer’s manual on the recorder instrument attached to this manual.

WARNING

Failure to heed warnings in this instruction manual and on the oven could result in personal injury, property damage or death.

Redundant High-Limit

The redundant high-limit is located on the equipment panel behind the control panel door. The temperature is sensed by an independent thermocouple, located next to the control thermocouple. To operate the redundant high-limit, set the dial to the desired temperature, this is usually set at a temperature just below the safe maximum temperature of the product, but not too low to interfere with the process. If temperature of the chamber exceeds the high-limit setting on the redundant high-limit, the heater will shut down and the Alarm Horn and red pilot light will energize. The heater will shut off. To silence the alarm:

• Depress the Alarm Silence switch, this is a momentary switch, it will return to

its normal position when released.

• The alarm horn will be silenced, but the red alarm pilot light will remain lit.

• When the overtemperature condition clears, press RESET on the redundant

high-limit.

• The heater should be back on and the chamber should be functioning

correctly.

If the high-limit trips repeatedly, verify the cause of overtemperature and correct problem. See the manufactures manual on the redundant high-limit instrument attached to this manual.

Disconnect Switch

The disconnect switch is located on the upper front of the control panel, above the controller. The OFF position is when the handle turned to the left, and ON is when it turned to the right. To access the equipment behind the control panel, the disconnect switch must be in the OFF position. This prevents access to the equipment panel while power is on the oven.

Stacking Option

When ordered, this option lets the user to stack two ovens; one on top of the other using specially designed stacking hardware. Using this option still requires that each oven have its own power supplied to it

Replacement

Parts

To order or return parts, contact the Service Products Division at Despatch. The Service Products Division features our Response Center for customer service. When returning parts, a Despatch representative will provide you with an MRA (Material Return Authorization) number. The MRA number must be attached to the returned part for identification. When you are ordering parts, be sure to give the model number, serial number and the part number. This will expedite the process of obtaining a replacement part.

When you have a 612-781-5353.

service

need, contact the

Response Center

WARNING

Disconnect the main power switch or power cord before attempting any repair or adjustment.

1-800-473-7373

: FAX

Nitrogen and Liquid Nitrogen

The standard air-atmosphere oven can be converted to a nitrogen-atmosphere with a factory installable kit. The following are instructions on the operation of the nitrogen (N2) and liquid nitrogen (LN2) cooling option for the RBC1-50 Burn-In oven.

Theory of Operation

The nitrogen atmosphere option uses nitrogen (N2) to displace oxygen from the chamber, thus eliminating oxidation of components. The heat is dissipated from the oven by liquid nitrogen (LN2). Nitrogen enters the chamber and reduces the oxygen level to the desired level. The flowmeter keeps the desired N2 entering into the chamber, maintaining a low concentration of oxygen while a burn-in cycle is in progress.

Operator Training Requirements

WARNING

Suffocation can occur in a nitrogen atmosphere oven chamber if it is not thoroughly purged with room air before a person goes inside it. Before entering an oven chamber, run the oven for at least five minutes with the nitrogen (or any other inert) gas turned off, doors open and recirculating fan running. Only then should a person work inside the oven chamber with the doors closed.

Operation

1. Connect the nitrogen (N2) supply line to the inlet located in the rear of the oven.

2. Set the pressure regulator to 40PSIG.

3. Connect the liquid nitrogen (LN2) supply to the inlet located on the box in the rear of the oven.

4. Adjust the regulator to 35PSIG max.

5. Check nitrogen plumbing for leaks, using soapy water solution.

6. As gas nitrogen is odorless, all leaks should be stopped to prevent the possibility of suffocation in a small work area in which a nitrogen leak might displace much of the oxygen in the atmosphere.

7. Start chamber, and turn the Nitrogen (N2) switch ON.

8. The pilot light on the switch indicates that the solenoid valve is open and nitrogen (N2) is entering the chamber.

9. Adjust the flowmeter, which is located in the front control panel, and set to desired flow rate. The flow rate should set so that it creates a slightly positive pressure in the chamber, which counteracts leaks and keeps the oxygen content at a safe, low level of concentration.

10. When the oven nears temperature set on the control, the heater will start cycling on and off.

WARNING

Do not use oven in wet, corrosive or explosive atmospheres.

CAUTION

Nitrogen & carbon dioxide gases can cause asphyxiation if used in confined or poorly ventilated areas.

11. When the chamber temperature is above setpoint on control, the cooling output of the control will start cycling the liquid nitrogen (LN2) solenoid valve, which will cool the chamber.

WARNING

Failure to heed this warning can result in severe frostbite to eyes or skin. Do not touch frosted pipes or valves.

Nitrogen Atmosphere

Purge Rate

The chart below shows the time required to reduce the oxygen content to different percentages of concentration. At a flow rate of 100 SCFH in the RBC1-50 Burn-In oven, oxygen concentration from 21% in room air down to 6% in the closed oven takes approximately 11 minutes.

Flow Rate Time Versus Oxygen Content

22 20 18 16 14 12

% O2

8 6 4 2 0

0 4 8 12 16 20 24 26

Time in Minutes

Maintain Rate

The chart below shows typical flow rate required to maintain the oxygen content at different percentages of concentration in the RBC1-50 Burn-In oven with nitrogen atmosphere option installed. For example, it requires 36SCFH to keep the oxygen concentration down to 6½ percent in the closed oven chamber. The preliminary settings can be determined from this graph. If the oxygen concentration must be determined more accurately, use an oxygen monitor.

Oxygen Stabilization vs. Flow of N2

22 20 18 16 14 12

%O2

8 6 4 2 0

0 9 18 27 36 45 54 63

SCFH-N2

Check zone calibration.

Troubleshooting

Equipment, which operates for extended lengths of time, may develop problems. Below are possible problems and suggested solutions. If you have a problem not listed and do not know what to do, contact Despatch Industries at our toll free Help Line 800-473-7373.

Difficulty Probable Cause Suggested Remedy

Failure to heat No power

Burned out heater Protocol™ malfunction Loose wire connections

Heater relay failure No power to the heater

Airflow switch open Door switch failure

(if installed)

Slow heat up Improperly loaded

Low line voltage

Heating element(s) are burned out

Fan motor failure Frequent heater element burnout

Erratic temp. or inaccurate temp.

Harmful fumes generated by

load

Spillage or splattering of

material on heater elements

Overheating oven

Protocol™ malfunction

Improper tuning parameters

Protocol™ miscalibration

Hi-limit setting

Improper offset

Check power source and/or oven and wall fuses. Replace heater (see warranty.) Replace controller. Disconnect power and check connections behind

control panel. Replace circuit board. Reset High-limit(s). Make sure control is calling for

heat. Check controller. Check SSR. Check airflow switch. Replace door switch. Reduce load or redistribute load in chamber. Supply sufficient power and proper connections.

Check for circuit overload. Replace heater (see warranty statement.)

Replace fan motor. Increase vent opening or discontinue process.

Disconnect power and clean oven chamber and elements.

Check the Hi-limit. Do not operate oven over 260°C (500°F). Replace Protocol™.

Check tuning parameters. Recalibrate Protocol™ (see section on Calibration

mode.) Hi-limit should be 10-25°C higher than setpoint.

WARNING

: Disconnect the main power switch or power cord before attempting any repair or adjustment.

Difficulty Probable Cause Suggested Remedy Excess surface or door temp. Improper airflow Fan motor failure

Excessive vibration

Oven will not control at setpoint

Damper motor (exhaust) not responding

Liquid nitrogen (LN2) not cooling

Heater does not shut down until temp. reaches the Hi-limit setting Nitrogen (N2) not flowing correctly

Door seal deterioration Replace door seal.

Replace fan motor.

Fan wheel seated too low on fan shaft

Unbalanced fan wheel Dirty fan wheel

Unbalanced fan wheel Hi-limit set too low

Protocol malfunction SSR malfunction Air friction of recirculation fan

Damper motor (exhaust) not responding Linkage binding

Motor not working Improper tuning parameters

Solenoid valve not responding

Improper tuning parameters Tank empty or valve is to the

OFF position Pressure regulator set too low

Protocol malfunction SSR malfunction

Tank empty or valve is to the OFF position

Pressure regulator set too low

Flowmeter incorrectly set

Adjust fan wheel for 3/16" clearance between wheel and inlet ring.

Replace fan wheel. Clean fan.

Replace fan wheel. Set the Hi-limit higher

Replace control. Replace SSR and/or check control output voltage. Open fresh air vent. Unit will not control below

minimum operating temperature with vent closed. Check tuning parameters. Observe and correct linkage. Check supply and signal voltage. Check tuning parameters.

Check supply voltage and control output. Replace valve.

Check tuning parameters. Check liquid nitrogen (LN2) supply and valve

position. Adjust regulator to 35PSIG maximum.

Replace Protocol Replace SSR

Check nitrogen supply and valve position.

Adjust regulator within the acceptable range of the flowmeter.

Adjust flowmeter to the desired flow rate.

Circuit Board Check

The circuit board mounted on the control panel has three status LED indicators to help troubleshoot if the oven is not heating.

• If LED 1 is not lit, check 2F and 3F (control fuses), or power switch.

• If LED 1 and LED 3 are lit but not LED 2, check high limit (and optional door

switch, if installed).

If all three LEDs are lit, check 1F and 4F (heater relay fuses), SSR, heater, heater fuses, and heater relays.

DRAWINGS

Electrical drawings for the RBC1-50 are on the next two pages.

Drawing 157420I01

Drawing 157420I02

APPENDIX: Temperature Scale Conversion and Optional MRC5000 Setup

Temperature Scale Conversion (C/F)

The Protocol Plus controller can be operated in either C or F. The default setting for the controller is C. Changing from one to the other is as follows:

1. Go into the

2. Press the

3. Press the

4. Press the enter the proper password. The default password is 2 for level two.

5. Once the proper password is displayed, press the displayed.

6. Press the arrow keys to change the setting.

7. Once the proper setting is displayed, press and hold the approximately three seconds to exit the

Setup Mode Select Page Menu

Key until

key and

Key and

key and

on the controller.

Setup

Security

Password

Temp Unit

is displayed.

will be displayed.

will be displayed. Use the

along with C or F will be displayed. Use the

Setup Mode

Page

arrow

key until

Page

key for

PID

keys to

Optional MRC5000 Recorder Setup

The temperature is retransmitted to the Recorder from the Controller. Set up the Recorder as follows:

1. Make sure that jumper

2. Move the displayed.

3. Press the settings are per the table below.

4. Once all the settings have been changed, move the position. The display on both the Recorder and controller should read the same.

Parameter Code Degrees C Degrees F Inps 18 18

Mode

switch to the

down arrow

JU1

is setup for the

PROG/TEST/CAL

key twice and

5 VDC

Inps

will be displayed. Make sure the

setting (see MRC Manual).

position, and

Mode

Prog

switch to the

will be

RUN

Icor 0 0 diSP On On dPOS 0 0 EUU ** 400 752 EUL ** 0 32 ChUP 400 800 * ChLO 0 0 DFF 1 1

* Note: The 0 - 400 chart paper must be changed to the 0 - 800 chart paper.

Depending on the equipment, 0 - 600 paper can be used if the maximum temperature is 500 degrees F.

** Note: These values must mach the setting sRetOutLo and RetOutHi on the Control page on the Protocol Plus controller (example: RetOutLo is 32, then EUL must read 32).

Despatch RBC1-50 Specifications

Specifications and Main Features

Frequently Asked Questions

User Manual