Watlow Electric MINICHEF 2000 User Manual

MINICHEFTM2000

97

Registered Company

Winona, Minnesota USA

ISO 9001

TOTAL

CUSTOMER

SATISFACTION

Applications 7, 8 & 9

Convection Oven Applications Guide

Programming & Operating Steps

Watlow Controls

1241 Bundy Blvd. P.O. Box 5580 Winona, Minnesota U.S.A. 55987-5580 (507) 454-5300, Fax (507) 452-4507

WMC2-XAGN-0002-Rev A May 1997

Made in the U.S.A.

$5.00

Automatic Convection Oven

One Heat Channel, Six Menus

Introduction to Application 7 . . . . . . . . . . . . . . . 1

Configuration Mode Quick Reference . . . . . . . . . 3

Program Mode Quick Reference . . . . . . . . . . . . 4

Step 7 Design a Faceplate Overlay. . . . . . . . . . . 5

Step 8 Operate the Controller . . . . . . . . . . . . . . 6

Application 7 allows you to program as many as six menu keys to control one temperature channel, a fan and cooking time for an automatic convection oven.

Overview of Key Steps

1. Install the MINICHEF 2000.

2. Wire the controller.

3. Configure the controller.

4. Program the menus.

5. Set the controller security.

6. Set the Real-time Clock. For instructions on Steps 1, 2, 3, 4, 5 and 6, see the Hardware & Software Setup Guide.

7. Design, manufacture and apply faceplate overlay for end-users. (For a suggested design to suit this application, see this section. For overlay dimensions and guidelines, see the Hardware & Software Setup Guide.)

8. Operate the controller. (See this application guide.)

Key Functions in Configuration Mode

→Output 1 Heat

→Output 2 not used

→Event Output 1 Fan Low →Event Output 2 Fan High →Output 5 Audible Alarm

Heat

Menu 1

Menu 4

Menu 3

Menu 6

1

Menu 2

2

3

4

Menu 5

5

6

Your Company Logo

Input 1 Oven Temperature→

Input 2 not used →

Event Input 1 Door Open →

Event Input 2 not used →

Heat

Menu

123

456

Your Company Logo

Menu Key Indicator Lights

Slow flash...Preheating Rapid flash...Ready Lit...Cooking Rapid flash...Done Slow flash...Idle and

regulating temp to previous set point

Not Lit...No menu selected

Heat Indicator Light Lit when heat output is on.

Menu Keys Activate and cancel menus, activate cook cycle when preheating,and acknowledge alarms.

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Display five-digit, sevensegment numeric LED display.

Indicator lights

(1 for each key, 2 for heat channels).

Edit key (A) Access the next level of parameters or values.

Enter key (B) Enter the value and return to previous level.

Home key (D) Move to Operation Mode with a two-second key press.

Up key (C) Move up the lists.

Escape key (E) Return to original value when editing a parameter value.

Down key (F) Move down the lists.

Key Functions in Operation Mode

Summary of Input/Output Functions

Note: For details, see wiring instructions in the

2 ■ Watlow MINIC HEF 2000 Application 7

Hardware & Software Setup Guide.

Configuration Mode Quick Reference

These are the functions, parameters and values included in the Configuration Mode for this application. You must select Application 7 to access them. For directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes an explanation of all parameters and values.

Function Parameter Value Your Settings

{Etype} Equipment-Type [appl`] Application Number 1 - 28 7

[a_Loc] Application Number yes, no

Security Lock

[Sound] Audible Alarm 0 - 5 [FAn``] Fan Speed 1 spd, 2 spd [delay] Fan Delay Time 0 - 120

[SEtUP] Setup [`Ç_Ï`] Temperature Display Format °C or °F

[time] Time Display Format MMM:SS, HH:MM, H:MM:SS

(H=Hours, M=Minutes, S=Seconds)

[Chirp] Key Chirp On, Off [loc``] Menu Security Lock Yes, No [tc```] Thermocouple Type J, K (shown as [````H]), E [rtd``] RTD Curve DIN, JIS [tconp] WatCurveTMTemperature On, Off

Compensation

[Ofst1] Temperature Offset, Channel 1 -99° to 99°F (-55° to 55°C) [tr`lo] Temperature Range Low 0ºF (-18ºC) for RTD inputs

32ºF (0ºC) for tc inputs to [tr`Hi] [tr`Hi] Temperature Range High [tr`lo] to 1200°F (649°C) [ready] Preheat Ready Feature Yes, No [rband] Ready Band 1 to 1200°F (649°C) [Cloc`] Real Time Clock Display Yes, No [plOSS] Power Loss Menu Resume Yes, No [al``1] Alarms for channel 1 None, Dev, Proc, Both [aL`P1] Absolute Process Alarm 1 100 to 1200°F (38 to 649°C) [aLdL1] Low Deviation Alarm 1 -999 to 0°F (-555 to 0°C) [aLdH1] High Deviation Alarm 1 0 to 999°F (0 to 555°C)

[tHErl] Thermal [tyPE`] Temperature Control Type PID, On-Off

[HYSt1] Hysteresis 1 1 to 99°F (1 to 55°C) [Pid`U] PID Units SI, US [tune1] Auto-tuning 1 on, OFF [ProP1] Proportional Band 1 1 to 999°F (1 to 555°C) [rSEt1] Reset (integral) Gain 1 0.00 to 9.99 repeats/minute [int`1] Integral Gain 1 0.00 to 99.99 minutes/repeat [rAtE1] Rate (derivative) Gain 1 0.00 to 9.99 minutes [dEr`1] Derivative Gain 1 0.00 to 9.99 minutes [CYcL1] PID Cycle Time 1 1 to 60 seconds

[`diag] WatHelp Used for equipment troubleshooting and testing. Not used when programming. See the Hardware

Diagnostics & Software Setup Guide.

Application 7 Watlow MINICHEF 2000 ■ 3

Program Mode Quick Reference

These are the functions, parameters and values included in the Program Mode for this application. You must select Application 7 to access them. For menu programming directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes a

Function Parameter Value Your Settings

[M`__] [Stpt1] Set point 1 Temperature range low Menu Numbers 1 - 6 Temperature of set point 1. to range high.

detailed explanation of all parameters and values.

[Tine1] Time 1 Setting Time 1, Time 2, Time 3 Run time of set point 1. and Time 4 all to zero

invalidates selected menu. Format varies based on configuration.

[fan`1] Fan 1 Speed Single Speed: On, Off Speed of fan during time 1. Two Speed: Off, Low, Hi

[Stpt2] Set point 2 Temperature range low Temperature of set point 2. to range high.

[Tine2] Time 2 Setting Time 1, Time 2, Time 3 Run time of set point 2. and Time 4 all to zero

invalidates selected menu. Format varies based

on configuration.

[fan`2] Fan 2 Single Speed: On, Off Speed of fan during time 2. Two Speed: Off, Low, Hi.

[Stpt3] Set point 3 Temperature range low Temperature of set point 3. to range high.

[Tine3] Time 3 Setting Time 1, Time 2, Time 3 Run time of set point 3. and Time 4 all to zero

invalidates selected menu. Format varies based

on configuration.

[fan`3] Fan 3 Single Speed: On, Off Speed of fan during time 3. Two Speed: Off, Low, Hi

[Stpt4] Set point 4 Temperature range low Temperature of set point 4. to range high.

[Tine4] Time 4 Setting Time 1, Time 2, Time 3 Run time of set point 4. and Time 4 all to zero

invalidates selected menu. Format varies based

on configuration.

[fan`4] Fan 4 Single Speed: On, Off Speed of fan during time 4. Two Speed: Off, Low, Hi

Auto-tuning Note:

Before auto-tuning Application 7, the Set Point 1 of Menu 1 must first be set to a value that is typical of your application. (See Hardware & Software Setup Guide for information on programming menus.) Then set [tHerl] / [tunE1] to [```on]. After you accept [```on], by pressing “Enter,” the controller will display [`tunE] while auto-tuning is taking place.

The controller will cancel the auto-tuning process if it cannot be completed in 80 minutes. You can cancel the auto-tuning process at any time by pressing either key C or key D and accepting [``Off], by pressing “Enter,” when it appears.

4 ■ Watlow MINIC HEF 2000 Application 7

Step 7 Design a Faceplate Overlay

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Heat

Menu

123

456

Your Company Logo

To complete the installation, you must apply a graphic membrane to the front panel of the controller. The following artwork will help you design and create a membrane for this application. For more dimensions and guidelines, see the Hardware & Software Setup Guide.

Suggested End-user Overlay:

This Prototyping and Training Membrane Overlay will help you with the configuration and programming steps. To order it, see the Ordering Information at the back of this guide.

Application 7 Watlow MINICHEF 2000 ■ 5

Step 8 Operate the Controller

AB

DECF

GH

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

SLOW

FLASH

AT OPERATING TEMPERATURE

(PREHEAT CONDITION MET)

RAPID FLASH

B

DECF

MINICHEF 2000

[100f`]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

G H GH

A A

[pre-`] [`Heat]

Summary of Key Functions in Operation Mode

Key Function

A Menu 1 B Menu 2 C Menu 3 D Menu 4 E Menu 5 F Menu 6

Start-up

Apply power to the oven. [`idle] will appear on the display. If the Real Time Clock Display option is installed and [setUp] / [time] is pro-

grammed, the time of day will appear on the display.

Preheat

If the [Ready] parameter under the [SEtUP] function in the Configuration Mode is set to yes, the controller will detect temperatures and preheat to operating temperature (above the relative set point minus the ready band) as required.

• Press the key for the menu you want to run. Each key selects a different menu. You can select from up to six menus that control temperature and cooking time. Only one menu may be run at a time.

Note: The controller will not respond if you select an invalid menu (one for which the total of Time 1, Time 2, Time 3,

and Time 4 is set to 0).

The menu you have chosen becomes the current menu for controller operation. Until the menu is completed or canceled, the indicator light above the menu key will light up (flashing or steady) to indicate the active menu.

• If the oven is not at operating temperature, it will preheat. Meanwhile: The word [pre-`] [`Heat] will appear on the display for a few moments. The

menu key indicator light will flash slowly. The temperature of Channel 1 will be displayed until the operating temperature is reached.

6 ■ Watlow MINIC HEF 2000 Application 7

The heat output indicator light - G, just below the display- will light up whenever

AB

DECF

GH

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

SLOW FLASH

AT OPERATING TEMPERATURE

(PREHEAT CONDITION MET)

RAPID FLASH

B

DECF

MINICHEF 2000

[100f`]

Edit Accept

Back-UpExit

B

DECF

MINICHEF 2000

[ready]

Edit Accept

Back-UpExit

G H GH

A A

[pre-`] [`Heat]

the controller is calling for heat. When the oven is at operating temperature (above the relative set point minus the

ready band) [ready] will appear on the display and the menu key indicator light will flash rapidly. You are now ready to cook with the active menu.

• If the oven is at operating temperature, the display goes directly to [ready] without indicating preheat or temperature.

Note: you can skip preheat and go directly to the cooking sequence by pressing the menu key a second time.

Run a Menu (when preheat feature is active)

This procedure describes how to run an active menu when the preheat feature is active

- that is, when the [ready] parameter in the [setUp] function of the Configuration

mode is set to [``yes].

1. With [`idle] or time of day on the display, press the key for the menu you want to run.

If the preheat condition has not been met, the oven will preheat until [ready] appears on the display.

Note: You can skip preheat and go directly to the cooking sequence by pressing the menu key a second time.

If the oven is already at operating temperature [ready] will appear on the display.

2. With [ready] on the display, place the food in the oven. Then press the active menu key (indicated by the rapidly flashing indicator light).

The menu key indicator will light up. Time will count down on the display. The unit will run the following four-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2

plus Time 3 plus Time 4. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2. Set point 3 and Fan 3 will run until Time 3 expires. You will not see the switch-over

from Time 2 to Time 3. Set point 4 and Fan 4 will run until Time 4 expires. You will not see the switch-over

from Time 3 to Time 4.

3. When the cooking sequence is finished, one of the following will happen, depending on the way the controller was programmed at [Etype] / [sound]:

Application 7 Watlow MINICHEF 2000 ■ 7

With Sound set to 0, the controller automatically switches to idle in which the controller does not maintain temperature and does not run time. [`idle] or time of day will appear on the display. The menu key indicator light will be off.

With Sound set to 1, 2, or 3, [``end] will appear on the display and an audible tone will be emitted. The menu key indicator light will flash rapidly. You can acknowledge the tone by pressing the active menu key or it will time out in 1 to 20 seconds and go into idle. The menu key indicator light will flash slowly.

With Sound set to 4 or 5, end will appear on the display and the menu key indicator light will flash rapidly. You must acknowledge the audible signal by pressing the active menu key. Once acknowledged the audible signal is silenced and the controller goes into idle. The menu key indicator light will flash slowly.

4. Once the controller goes into idle, the menu key indicator light and the heat outputs will switch off. The controller will not regulate to any temperature.

5. To repeat cooking, repeat steps 1 through 2 or 3.

Run a Menu (when preheat feature is not active)

This procedure describes how to run an active menu when the preheat feature is inactive - in other words, when the [ready] parameter in the [setUp] function of the Configuration mode is set to [```no].

1. With idle on the display, place the food in the oven.

2. Press the key for the menu you want to run. The menu key indicator will light up. Time will count down on the display. The unit will run the following four-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2

plus Time 3 plus Time 4. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2. Set point 3 and Fan 3 will run until Time 3 expires. You will not see the switch-over

from Time 2 to Time 3. Set point 4 and Fan 4 will run until Time 4 expires. You will not see the switch-over

from Time 3 to Time 4.

3. When the cooking sequence is finished, one of the following will happen, depending on the way the controller was programmed at [Etype] / [sound]:

With Sound set to 0, the controller automatically switches to idle in which the controller does not maintain temperature and does not run time. [`idle] or time of day will appear on the display. The menu key indicator light will be off.

With Sound set to 1, 2, or 3, [``end] will appear on the display and an audible tone will be emitted. The menu key indicator light will flash rapidly. You can acknowledge the tone by pressing the active menu key or it will time out in 1 to 20 seconds and go into idle. The menu key indicator light will flash slowly.

With Sound set to 4 or 5, end will appear on the display and the menu key indicator light will flash rapidly. You must acknowledge the audible signal by pressing the active menu key. Once acknowledged the audible signal is silenced and the controller goes into idle. The menu key indicator light will flash slowly.

8 ■ Watlow MINIC HEF 2000 Application 7

4. Once the controller goes into idle, the menu key indicator light and the heat outputs will switch off. The controller will not regulate to any temperature.

5. To repeat cooking, repeat steps 1 through 2 or 3.

Pause a Menu

While cooking, you can pause cooking time by pressing the active menu key once. The menu key indicator light will flash rapidly. [PAUSE] will appear on the display. Countdown time will resume when you press the active menu key again.

Cancel a menu

Canceling a menu stops the controller completely. The controller does not maintain set point temperatures or run time. You cancel a menu to run another menu, stop menu operation for any reason, or are preparing to shut off the oven.

• Press the active menu key for 2 seconds. Heat outputs will switch off. Heat output indicator lights will switch off. [`idLE] or time of day will be on the display.

Change Menus or Restart

With the controller in idle press the key for the menu you want to run.

Door Opening

When you open the oven door (when the oven door is open, the switch is closed and Event Input 1 is turned on) the unit will act as described below.

During the cooking sequence: time is paused - [`door] will appear on the display. The heat and fan output signals will shut off.

During the preheat sequence: [`door] will appear on the display. The heat and fan output signals will be shut off.

During idle, the fan output signals will be shut off. When you close the door the unit will operate normally.

Event Outputs

While running a menu when the Configuration Mode [EtYPE] / [FAn``] is set to [````2] :

When Low fan speed is on, Event Output 1 is on. When High fan speed is on, Event Output 2 is on.

While running a menu when the Configuration Mode [EtYPE] / [FAn``] is set to

[````1] :When the fan is on, Event Output 1 is on.

ç

WARNING: Starting or initiating a menu can cause or initiate fan motion. Appropriate reasonable care should be

taken to prevent personal injury or machine damage as a result of operator initiated or unexpected fan motion.

Temperature Alarms

The controller will alert you to temperature alarm conditions if they occur. If an alarm occurs, take action as determined by your supervisor. See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of temperature alarms.

Application 7 Watlow MINICHEF 2000 ■ 9

Errors

The controller will alert you to errors if they occur. Errors are critical problems that shut down the unit. If an error occurs, an error message will appear on the display. You should switch off the power and call for service.

See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of errors.

10 ■ Watlow MINIC HEF 2000 Application 7

8

Application 8

Automatic Convection Oven

One Heat Channel, 15 Menus

Introduction to Application 8 . . . . . . . . . . . . . . 11

Configuration Mode Quick Reference . . . . . . . . 13

Program Mode Quick Reference. . . . . . . . . . . . 14

Step 7 Design a Faceplate Overlay . . . . . . . . . . 15

Step 8 Operate the Controller . . . . . . . . . . . . . 16

Application 8 allows you to program as many as fifteen menus to control one temperature channel, a fan and cooking time for an automatic convection oven.

Overview of Key Steps

1. Install the MINICHEF 2000.

2. Wire the controller.

3. Configure the controller.

4. Program the menus.

5. Set the controller security.

6. Set the Real-time Clock. For instructions on Steps 1, 2, 3, 4, 5 and 6, see the Hardware & Software Setup Guide.

7. Design, manufacture and apply faceplate overlay for end-users. (For a suggested design to suit this application, see this section. For overlay dimensions and guidelines, see the Hardware & Software Setup Guide.)

8. Operate the controller. (See this application guide.)

Key Functions in Configuration Mode

Heat

1

2

4

5

Start/

Stop

6

Down

Your Company Logo

3

Up

Input 1 Oven Temperature→

Input 2 not used →

Event Input 1 Door Open →

Event Input 2 not used →

→Output 1 Heat

→Output 2 not used

→Event Output 1 Fan Low →Event Output 2 Fan High →Output 5 Audible Alarm

Menu Select

Heat

1

2

5

Start/

Stop

6

Down

Your Company Logo

3

Up

4

Menu

Select

Heat indicator light Lit

when heat output is on.

Not Used

Menu Select Enter menu

mode or select menu.

Increment Scroll through valid menus.

Start/Stop Activate or cancel active menu.

Decrement Scroll through valid menus.

Start/Stop Indicator Light

Slow flash...Preheating Rapid flash...Ready Lit...Cooking Off...Done

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Display five-digit, sevensegment numeric LED display.

Indicator lights

(1 for each key, 2 for heat channels).

Edit key (A) Access the next level of parameters or values.

Enter key (B) Enter the value and return to previous level.

Home key (D) Move to Operation Mode with a two-second key press.

Up key (C) Move up the lists.

Escape key (E) Return to original value when editing a parameter value.

Down key (F) Move down the lists.

Key Functions in Operation Mode

Summary of Input/Output Functions

Note: For details, see wiring instructions in the

12 ■ Watlow MINIC HEF 2000 Application 8

Hardware & Software Setup Guide.

Configuration Mode Quick Reference

These are the functions, parameters and values included in the Configuration Mode for this application. You must select Application 8 to access them. For directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes an explanation of all parameters and values.

Function Parameter Value Your Settings

{Etype} Equipment-Type [appl`] Application Number 1 - 28 8

[a_Loc] Application Number

Security Lock Yes, No

[Sound] Audible Alarm 0 - 5 [FAn``] Fan Speed 1 spd, 2 spd [delay] Fan Delay Time 0 - 120

[SEtUP] Setup [`Ç_Ï`] Temperature Display Format °C or °F

[time] Time Display Format MMM:SS, HH:MM, H:MM:SS

(H=Hours, M=Minutes, S=Seconds)

[Chirp] Key Chirp On, Off [loc``] Menu Security Lock Yes, No [tc```] Thermocouple Type J, K (shown as [````H]), E [rtd``] RTD Curve DIN, JIS [tconp] WatCurveTMTemperature On, Off

Compensation

[Ofst1] Temperature Offset, Channel 1 -99 to 99°F (-55 to 55°C) [tr`lo] Temperature Range Low 0ºF (-18ºC) for RTD inputs

32ºF (0ºC) for tc inputs.to [tr`Hi] [tr`Hi] Temperature Range High [tr`lo] to 1200°F (649°C) [ready] Preheat Ready Feature Yes, No [rband] Ready Band 1 to 1200°F (649°C) [Cloc`] Real Time Clock Display Yes, No [plOSS] Power Loss Menu Resume Yes, No [al``1] Alarms for channel 1 None, Dev, Proc, Both [aL`P1] Absolute Process Alarm 1 100 to 1200°F (38 to 649°C) [aLdL1] Low Deviation Alarm 1 -999 to 0°F (-555 to 0°C) [aLdH1] High Deviation Alarm 1 0 to 999°F (0 to 555°C)

[tHErl] Thermal [tyPE`] Temperature Control Type PID, On-Off

[HYSt1] Hysteresis 1 1 to 99°F (1 to 55°C) [Pid`U] PID Units SI, US [tune1] Auto-tuning 1 on, OFF [ProP1] Proportional Band 1 1 to 999°F (1 to 555°C) [rSEt1] Reset (integral) Gain 1 0.00 to 9.99 repeats/minute [int`1] Integral Gain 1 0.00 to 99.99 minutes/repeat [rAtE1] Rate (derivative) Gain 1 0.00 to 9.99 minutes [dEr`1] Derivative Gain 1 0.00 to 9.99 minutes [CYcL1] PID Cycle Time 1 1 to 60 seconds

[`diag] WatHelp Used for equipment troubleshooting and testing. Not used when programming. See the Hardware

Diagnostics & Software Setup Guide.

Application 8 Watlow MINICHEF 2000 ■ 13

Program Mode Quick Reference

These are the functions, parameters and values included in the Program Mode for this application. You must select Application 8 to access them. For menu programming directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes a detailed explanation of all parameters and values.

Function Parameter Value Your Settings

[M`__] Menu Numbers 1-15 [Stpt1] Set point 1 Temperature range

Temperature of set point 1. low to range high. [Tine1] Time 1 Setting Time 1, Time 2, Time 3

Run time of set point 1. and Time 4 to zero invalidates

selected menu. Format varies based on configuration.

[fan`1] Fan 1 Speed Single Speed: On, Off Speed of fan during time 1. Two Speed: Off, Low, Hi

[Stpt2] Set point 2 Temperature range Temperature of set point 2. low to range high.

[Tine2] Time 2 Setting Time 1, Time 2, Time 3 Run time of set point 2. and Time 4 to zero invalidates

selected menu. Format varies based on configuration.

[fan`2] Fan 2 Single Speed: On, Off Speed of fan during time 2. Two Speed: Off, Low, Hi

[Stpt3] Set point 3 Temperature range Temperature of set point 3. low to range high. [Tine3] Time 3 Setting Time 1, Time 2, Time 3 Run time of set point 3. and Time 4 to zero invalidates

[fan`3] Fan 3 Single Speed: On, Off Speed of fan during time 3. Two Speed: Off, Low, Hi

[Stpt4] Set point 4 Temperature range Temperature of set point 4. low to range high.

[Tine4] Time 4 Setting Time 1, Time 2, Time 3 Run time of set point 4. and Time 4 to zero invalidates

[fan`4] Fan 4 Single Speed: On, Off Speed of fan during time 4. Two Speed: Off, Low, Hi

Auto-tuning Note:

Before auto-tuning Application 8, the Set Point 1 of Menu 1 must first be set to a value that is typical of your application. (See the Hardware & Software Setup Guide for information on programming menus.) Then set [tHerl] / [tunE1] to [```on]. After you accept [```on], by pressing “Enter,” the controller will display [`tunE] while autotuning is taking place.

The controller will cancel the auto-tuning process if it cannot be completed in 80 minutes. You can cancel the auto-tuning process at any time by pressing either key C or key D and accepting [``Off], by pressing “Enter,” when it appears.

selected menu.selected menu. Format varies based on configuration.

14 ■ Watlow MINIC HEF 2000 Application 8

Step 7 Design a Faceplate Overlay

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Heat

1

2

5

Start/

Stop

6

Down

Your Company Logo

3

Up

4

Menu

Select

To complete the installation, you must apply a graphic membrane to the front panel of the controller. The following artwork will help you design and create a membrane for this application. For more dimensions and guidelines, see the Hardware & Software Setup Guide.

Suggested End-user Overlay:

This Prototyping and Training Membrane Overlay will help you with the configuration and programming steps. To order it, see the Ordering Information at the back of this guide.

Application 8 Watlow MINICHEF 2000 ■ 15

Step 8 Operate the Controller

DECF

MINICHEF 2000

[````1]

Edit Accept

Back-UpExit

DECF

MINICHEF 2000

[````9]

Edit Accept

Back-UpExit

AB

GH

AB

GH

DECF

MINICHEF 2000

[`idle]

Edit Accept

Back-UpExit

AB

GH

Summary of Key Functions in Operation Mode

Key Function

A Not Used B Not Used C Menu Increment D Menu Select E Start/Stop F Menu Decrement

Start-up

Apply power to the oven. [`idle] will appear on the display. If the Real Time Clock Display option is installed and [setUp] / [time] is pro-

grammed, the time of day will appear on the display.

Select a Menu

1. Press the Menu Select Key

The controller will display the currently selected menu. If no menus have been programmed the word [`nonE] will appear on the display.

2. Press the Up or Down key until the menu you want appears on the display.

The controller will only display valid menus (those for which the total of Time1, Time 2, Time 3 and Time 4 for the menu is set to greater than 0).

3. Press the Menu Select key or press the Start/Stop key.

If you press the Menu/Select key, [`idle] appears on the display and the menu you have chosen becomes the current menu for controller operation.

If you press the Start/Stop key the menu will start (see the “Run a Menu” instructions elsewhere in this section)

Preheat

If the [Ready] parameter under the [SEtUP] function in the Configuration Mode is set to yes, the controller will detect temperatures and preheat to operating temperature

16 ■ Watlow MINIC HEF 2000 Application 8

(above the relative set point minus the ready band) as required.

• Activate the menu by pressing the Start/Stop key.

• If the oven is not at operating temperature, it will preheat. Meanwhile: The word [pre-`] [`Heat] will appear on the display for a few moments. The

Start/Stop key indicator light will flash slowly. The temperature of Channel 1 will be displayed until the operating temperature is reached.

The heat output indicator light - G, just below the display- will light up whenever the controller is calling for heat.

When the oven is at operating temperature (above the relative set point minus the ready band) [ready] will appear on the display and the Start/Stop key indicator light will flash rapidly. You are now ready to cook with the active menu.

• If the oven is at operating temperature, the display goes directly to [ready] without indicating preheat or temperature.

Note: You can skip preheat and go directly to the cooking sequence by pressing the Start/Stop key a second time.

Run a Menu (when preheat feature is active)

This procedure describes how to run an active menu when the preheat feature is active

- that is, when the [ready] parameter in the [setUp] function of the Configuration

mode is set to [~`yes].

1. Select a menu as shown earlier.

2. With [`idle], time of day or a menu number on the display, press the Start/Stop key.

If the preheat condition has not been met, the oven will preheat until [ready] appears on the display.

Note: You can skip preheat and go directly to the cooking sequence by pressing the Start/Stop key a second time.

If the oven is already at operating temperature [ready] will appear on the display.

3. With [ready] on the display, place the food in the oven. Then press the Start/Stop key (indicated by the rapidly flashing indicator light).

The Start/Stop key indicator will light up. Time will count down on the display. The unit will run the following four-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2

plus Time 3 plus Time 4. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2. Set point 3 and Fan 3 will run until Time 3 expires. You will not see the switch-over

from Time 2 to Time 3. Set point 4 and Fan 4 will run until Time 4 expires. You will not see the switch-over

from Time 3 to Time 4.

4. When the cooking sequence is finished, one of the following will happen, depending on the way the controller was programmed at [Etype] / [sound]:

Application 8 Watlow MINICHEF 2000 ■ 17

With Sound set to 0, the controller automatically switches to idle in which the controller does not maintain temperature and does not run time. [`idle] or current time will appear on the display. The Start/Stop key indicator light will be off.

With Sound set to 1, 2, or 3, [``end] will appear on the display and an audible tone will be emitted. The Start/Stop key indicator light will flash rapidly. You can acknowledge the tone by pressing the Start/Stop key or it will time out in 1 to 20 seconds and go into idle. The Start/Stop key indicator light will be off.

With Sound set to 4 or 5, [``end] will appear on the display and the Start/Stop key indicator light will flash rapidly. You must acknowledge the audible signal by pressing the Start/Stop key. Once acknowledged the audible signal is silenced and the controller goes into idle. The Start/Stop key indicator light will be off.

5. Once the controller goes into idle, the Start/Stop key indicator light and the heat outputs will switch off. The controller will not regulate to any temperature.

6. To repeat cooking, repeat steps 1 through 3 or 4.

Run a Menu (when preheat feature is not active)

This procedure describes how to run an active menu when the preheat feature is inactive - in other words, when the [ready] parameter in the [setUp] function of the Configuration mode is set to [```no].

1. Select a menu as shown earlier.

2. With [`idle], time of day or a menu number on the display, place the food in the oven.

3. Press the Start/Stop key. The Start/Stop key indicator will light up. Time will count down on the display. The unit will run the following four-step cooking sequence: Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2

plus Time 3 plus Time 4. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2. Set point 3 and Fan 3 will run until Time 3 expires. You will not see the switch-over

from Time 2 to Time 3. Set point 4 and Fan 4 will run until Time 4 expires. You will not see the switch-over

from Time 3 to Time 4.

4. When the cooking sequence is finished, one of the following will happen, depending on the way the controller was programmed at [Etype] / [sound]:

With Sound set to 0, the controller automatically switches to idle in which the controller does not maintain temperature and does not run time. [`idle] or current time will appear on the display. The Start/Stop key indicator light will be off.

With Sound set to 1, 2, or 3, [``end] will appear on the display and an audible tone will be emitted. The Start/Stop key indicator light will flash rapidly. You can acknowledge the tone by pressing the Start/Stop key or it will time out in 1 to 20 seconds and go into idle. The Start/Stop key indicator light will be off.

18 ■ Watlow MINIC HEF 2000 Application 8

With Sound set to 4 or 5, [``end] will appear on the display and the Start/Stop key indicator light will flash rapidly. You must acknowledge the audible signal by pressing the Start/Stop key. Once acknowledged the audible signal is silenced and the controller goes into idle. The Start/Stop key indicator light will be off.

5. Once the controller goes into idle, the Start/Stop key indicator light and the heat outputs will switch off. The controller will not regulate to any temperature.

6. To repeat cooking, repeat steps 1 through 3 or 4.

Pause a Menu

While cooking, you can pause cooking time by pressing the Start/Stop key once. The Start/Stop key indicator light will flash rapidly. [PAUSE] will appear on the display. Countdown time will resume when you press the active menu key again.

Cancel a menu

Canceling a menu stops the controller completely. The controller does not maintain set point temperatures or run time. You cancel a menu to run another menu, stop menu operation for any reason, or are preparing to shut off the oven.

• Press the Start/Stop key for 2 seconds. Heat outputs will switch off. Heat output indicator lights will switch off. [`idLE] or time of day will be on the display.

Change Menus or Restart

With the controller in idle:

1. Select a menu as shown earlier.

2. Press the Start/Stop key.

Door Opening

When you open the oven door (when the oven door is open, the switch is closed and Event Input 1 is turned on) the unit will act as described below.

During the cooking sequence: time is paused - [`door] will appear on the display. The heat and fan output signals will shut off. During the preheat sequence: [`door] will appear on the display. The heat and fan

output signals will be shut off. When you close the door the unit will operate normally.

Event Outputs

While running a menu when the Configuration Mode [EtYPE] / [FAn``] is set to [````2] :

When Low fan speed is on, Event Output 1 is on. When High fan speed is on, Event Output 2 is on.

While running a menu when the Configuration Mode [EtYPE] / [FAn``] is set to

[````1] :When the fan is on, Event Output 1 is on.

ç

WARNING: Starting or initiating a menu can cause or initiate fan motion. Appropriate reasonable care should be

taken to prevent personal injury or machine damage as a result of operator initiated or unexpected fan motion.

Application 8 Watlow MINICHEF 2000 ■ 19

Temperature Alarms

The controller will alert you to temperature alarm conditions if they occur. If an alarm occurs, take action as determined by your supervisor. See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of temperature alarms.

Errors

The controller will alert you to errors if they occur. Errors are critical problems that shut down the unit. If an error occurs, an error message will appear on the display. You should switch off the power and call for service.

See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of errors.

20 ■ Watlow MINIC HEF 2000 Application 8

9

Application 9

Manual Convection Oven

One Heat Channel

Introduction to Application 9 . . . . . . . . . . . . . . 21

Configuration Mode Quick Reference . . . . . . . . 23

Step 7 Design a Faceplate Overlay . . . . . . . . . . 25

Step 8 Operate the Controller . . . . . . . . . . . . . 26

Application 9 allows you to program to control one temperature channel, a fan and cooking time for a manual convection oven.

Overview of Key Steps

1. Install the MINICHEF 2000.

2. Wire the controller.

3. Configure the controller.

4. Program the menu.

5. Set the controller security.

6. Set the Real-time Clock.

For instructions on Steps 1, 2, 3, 4, 5 and 6, see the Hardware & Software Setup Guide.

7. Design, manufacture and apply faceplate overlay for end-users. (For a suggested design to suit this application, see this section. For overlay dimensions and guidelines, see the Hardware & Software Setup Guide.)

8. Operate the controller. (See this application guide.)

Application 9 Watlow MINICHEF 2000 ■ 21

Key Functions in Configuration Mode

Heat

1

Temp

2

Time

4

Fan

5

Start/

Stop

6

Down

Your Company Logo

3

Up

Input 1 Oven Temperature→

Input 2 not used →

Event Input 1 Door Open →

Event Input 2 not used →

→Output 1 Heat

→Output 2 not used

→Event Output 1 Fan Low →Event Output 2 Fan High →Output 5 Audible Alarm

Heat

1

Temp

2

Time

4

Fan

5

Start/

Stop

6

Down

Your Company Logo

3

Up

Time Set Time 1 Time Indicator Light

Rapid flash when editing parameters during menu operation.

Heat Indicator Light Lit when heat output is on.

Increment and Basket Up

Lift basket.

Up and Down Indicator Lights Lit when up or

down outlets are energized.

Decrement and Basket Down Lower basket.

Temp Set Point 1

Temperature.

Temp Indicator Light

Rapid flash when editing parameters during menu operation.

Start/Stop Activate or cancel active menu.

Start/Stop Indicator Light

Full on...Preheating Flashing...Ready or Paused Full on...Cooking Off...Done.

Fan

Fan Speed Setting

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Display five-digit, sevensegment numeric LED display.

Indicator lights

(1 for each key, 2 for heat channels).

Edit key (A) Access the next level of parameters or values.

Enter key (B) Enter the value and return to previous level.

Home key (D) Move to Operation Mode with a two-second key press.

Up key (C) Move up the lists.

Escape key (E) Return to original value when editing a parameter value.

Down key (F) Move down the lists.

Key functions in Operation Mode

Summary of Input/Output Functions

Note: For details, see wiring instructions in the

22 ■ Watlow MINIC HEF 2000 Application 9

Hardware & Software Setup Guide

.

Configuration Mode Quick Reference

These are the functions, parameters and values included in the Configuration Mode for this application. You must select Application 9 to access them. For directions, see the Hardware & Software Setup Guide. The Appendix of that guide includes an explanation of all parameters and values.

Function Parameter Value Your Settings

{Etype} Equipment-Type [appl`] Application Number 1 - 28 9

[a_Loc] Application Number

Security Lock Yes, No

[FAn``] Fan Speed 1 spd, 2 spd [delay] Fan Delay Time 1 - 120 minutes

[SEtUP] Setup [`Ç_Ï`] Temperature Display Format °C or °F

[time] Time Display Format MMM:SS, HH:MM, H:MM:SS

(H=Hours, M=Minutes, S=Seconds)

[Chirp] Key Chirp On, Off [tc```] Thermocouple Type J, K (shown as [````H]), E [rtd``] RTD Curve DIN, JIS [tconp] WatCurveTMTemperature On, Off

Compensation

[Ofst1] Temperature Offset, Channel 1 -99 to 99°F (-55 to 55°C) [tr`lo] Temperature Range Low 0ºF (-18ºC) for RTD inputs

32ºF (0ºC) for tc inputs to [tr`Hi] [tr`Hi] Temperature Range High [tr`lo] to 1200°F (649°C) [ready] Preheat Ready Feature Yes, No [rband] Ready Band 1° to 1200°F (649°C) [Cloc`] Real Time Clock Display Yes, No [plOSS] Power Loss Menu Resume Yes, No [al``1] Alarms for channel 1 None, Dev, Proc, Both [aL`P1] Absolute Process Alarm 1 100 to 1200°F (38 to 649°C) [aLdL1] Low Deviation Alarm 1 -999 to 0°F (-555 to 0°C) [aLdH1] High Deviation Alarm 1 0 to 999°F (0 to 555°C)

[tHErl] Thermal [tyPE`] Temperature Control Type PID, On-Off

[HYSt1] Hysteresis 1 1° to 99°F (1° to 55°C) [Pid`U] PID Units SI, US [tune1] Auto-tuning 1 on, OFF [ProP1] Proportional Band 1 1 to 999°F (1 to 555°C) [rSEt1] Reset (integral) Gain 1 0.00 to 9.99 repeats/minute [int`1] Integral Gain 1 0.00 to 99.99 minutes/repeat [rAtE1] Rate (derivative) Gain 1 0.00 to 9.99 minutes [dEr`1] Derivative Gain 1 0.00 to 9.99 minutes [CYcL1] PID Cycle Time 1 1 to 60 seconds

[`diag] WatHelp Used for equipment troubleshooting and testing. Not used when programming. See the Hardware

Diagnostics & Software Setup Guide.

Application 9 Watlow MINICHEF 2000 ■ 23

Auto-tuning Note:

Before auto-tuning Application 9, [teNp1] in the operations menu must first be set to a value that is typical of your application. (See Hardware & Software Setup Guide for information.) Then set [tHerl] / [tunE1] to [```on]. After you accept [```on], by pressing “Enter,” the controller will display [`tunE] while auto-tuning is taking place.

The controller will cancel the auto-tuning process if it cannot be completed in 80 minutes. You can cancel the auto-tuning process at any time by pressing either key C or key D and accepting [``Off], by pressing “Enter,” when it appears.

24 ■ Watlow MINIC HEF 2000 Application 9

Step 7 Design a Faceplate Overlay

AB

DE

GH

Enter

EscapeHome

Edit

C

F

MINICHEF 2000

Heat

1

Temp

2

Time

4

Fan

5

Start/

Stop

6

Down

Your Company Logo

3

Up

To complete the installation, you must apply a graphic membrane to the front panel of the controller. The following artwork will help you design and create a membrane for this application. For more dimensions and guidelines, see the Hardware & Software Setup Guide.

Suggested End-user Overlay:

This Prototyping and Training Membrane Overlay will help you with the configuration and programming steps. To order it, see the Ordering Information at the back of this guide.

Application 9 Watlow MINICHEF 2000 ■ 25

Step 8 Operate the Controller

Summary of Key Functions in Operation Mode

Key Function

A Cook Temp(s) B Cook Time(s) C Up (Increment) D Fan Settings E Start/Stop F Down (Decrement)

Start-up

Apply power to the oven. [`idle] will appear on the display. If the Real Time Clock option is installed and [setUp] / [time] is programmed, the

time of day will appear on the display.

Set the Menu

Depending on the way the controller was programmed at [Etype] / [Steps] you can set the menu to run in one step or two.

[Etype] / [Steps] is set to [````1]: Single Step Menu [Etype] / [Steps] is set to [````2]: Two Step Menu

Single Step Menu

The single step menu consists of one cooking temperature, one cooking time and one fan setting.

Set the cooking temperatures.

1. Press the Cook Temp key. [TENP1] and then the cooking temperature value will appear on the display.

2. Press the Up or Down key until the value you want appears on the display.

3. Press the Cook Temp key again. The cooking temperature has been set. [`idle] will appear on the display.

Set the cooking time:

1. Press the Cook Time key. [tinE1] and then the cooking time value will appear on the display.

2. Press the Up or Down key until the value you want appears on the display.

3. Press the Cook Time key again. The Cooking Time has been set. [`idle] will appear on the display.

26 ■ Watlow MINIC HEF 2000 Application 9

Set the Fan

1. Press the Fan Settings key. [`FAn1] and then the fan setting value will appear on the display.

2. Press the Up or Down key until the value you want appears on the display.

3. Press the Fan Settings key again. The Fan value has been set. [`idle] will appear on the display. The menu you have set becomes the current menu for controller operation.

Five Second Timeout

When using the up or down keys to change a value, if you do not press any key for 5 seconds, the controller will automatically be set to the last value on the display and return to [`idle].

Two Step Menu

The two step menu consists of two cooking temperatures, two cooking times and one fan setting.

Set the two cooking temperatures.

1. Press the Cook Temp key. [tENP1] and then the first cooking temperature value will appear on the display.

2. Press the Up or Down key until the value you want appears on the display.

3. Press the Cook Temp key again. The first cooking temperature has been set. [tENP2] and then the second cooking temperature value will appear on the display.

4. Press the Up or Down key until the value you want appears on the display.

5. Press the Cook Temp key again. The second cooking temperature has been set. [`idle] will appear on the display.

Set the two cooking times.

1. Press the Cook Time key. [tinE1] and then the first cooking time value will appear on the display.

2. Press the Up or Down key until the value you want appears on the display.

3. Press the Cook Time key again. The first cooking time has been set. [tinE2] and then the second cooking time value will appear on the display.

4. Press the Up or Down key until the value you want appears on the display.

5. Press the Cook Time key again. The second cooking time has been set [`idle] will appear on the display.

Application 9 Watlow MINICHEF 2000 ■ 27

Set the Fan

1. Press the Fan Settings key. [~FAn1] and then the first fan setting value will appear on the display.

2. Press the Up or Down key until the value you want appears on the display.

3. Press the Fan Settings key again. The first fan value has been set. [~FAn2] and then the second fan setting value will appear on the display.

4. Press the Up or Down key until the value you want appears on the display.

5. Press the Fan Settings key again. The second fan value has been set [`idle] will appear on the display.

The menu you have set becomes the current menu for controller operation.

Five Second Timeout

When using the up or down keys to change a value, if you do not press any key for 5 seconds, the controller will automatically be set to the last value on the display and return to [`idle].

Preheat

If the Ready parameter under the [SEtUP] function in the Configuration Mode is set to yes, when you press the Start/Stop key to activate the menu, the controller will detect temperatures and preheat to operating temperature (above relative set point minus the ready band) as required.

• If the oven is not at operating temperature, it will preheat. Meanwhile: The word [pre-`] [`Heat] will appear on the display for a few moments. The

Start/Stop key indicator light will flash slowly. The temperature of Channel 1 will be displayed until the operating temperature is reached.

The heat output indicator light - G, just below the display- will light up whenever the controller is calling for heat.

When the oven is at operating temperature (above relative set point minus the ready band) [ready] will appear on the display and the Start/Stop key indicator light will flash rapidly. You are now ready to cook with the active menu.

• If the oven is at operating temperature, the display goes directly to [ready] without indicating preheat or temperature.

Note: You can skip preheat and go directly to the cooking sequence by pressing the Start/Stop key a second time.

Run a Menu (when preheat feature is active)

This procedure describes how to run an active menu when the preheat feature is active

- that is, when the [ready] parameter in the [setUp] function of the Configuration

mode is set to [``yes].

1. Set the menu as shown earlier.

28 ■ Watlow MINIC HEF 2000 Application 9

2. With [`idle] or time of day on the display, press the Start/Stop key. If the preheat condition has not been met, the oven will preheat until [ready]

appears on the display.

Note: You can skip preheat and go directly to the cooking sequence by pressing the Start/Stop key a second time.

If the oven is already at operating temperature [ready] will appear on the display.

3. With [ready] on the display, place the food in the oven. Then press the Start/Stop key (indicated by the rapidly flashing indicator light).

The Start/Stop key indicator will light up. Time will count down on the display. Depending on the way the controller was programmed at [Etype] / [Steps] the

menu will run in one step or two.

One Step

Countdown time is displayed. Set point 1 and Fan 1 will run until Time 1 expires.

Two Step

Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2.

4. When the cooking sequence is finished, [``end] will appear on the display and an audible tone will sound for two seconds. The controller will then go into idle.

5. Once the controller goes into idle, the Start/Stop indicator light will switch off.

6. To repeat cooking, repeat steps 1 through 4.

Run a Menu (when preheat feature is not active)

This procedure describes how to run an active menu when the preheat feature is inactive - in other words, when the [ready] parameter in the [setUp] function of the Configuration mode is set to [```no].

1. Set the menu as shown earlier.

2. With idle on the display, place the food in the oven.

3. Press the Start/Stop key. The Start/Stop key indicator will light up. Time will count down on the display. Depending on the way the controller was programmed at [Etype] / [Steps] the

menu will run in one step or two.

One Step

Countdown time is displayed. Set point 1 and Fan 1 will run until Time 1 expires.

Two Step

Countdown time is displayed. It is the total of the programmed Time 1 plus Time 2. Set point 1 and Fan 1 will run until Time 1 expires. Set point 2 and Fan 2 will run until Time 2 expires. You will not see the switch-over

from Time 1 to Time 2.

Application 9 Watlow MINICHEF 2000 ■ 29

4. When the cooking sequence is finished, [``end] will appear on the display and an audible tone will sound for two seconds. The controller will then go into idle.

5. Once the controller goes into idle, the Start/Stop indicator light will switch off.

6. To repeat cooking, repeat steps 1 through 4.

View Actual Oven Temperature

While cooking you can view the actual oven temperature by pressing and holding the Cook Temp key for three seconds.

Adjust a Menu While Cooking

You can adjust the temperature and time settings during the cooking sequence by performing the actions shown under “Set the menu” earlier in this section.

Changes can be made to temperature and time only during the portion of the cooking sequence in which they are active. For example: a change to the first cooking temperature [tENP1] can be made only when the first cooking temperature is being run during the cooking sequence.

Temperature changes made while cooking are saved and become part of the permanent menu. Time changes are not saved and do not become part of the permanent menu.

Pause a Menu

While cooking, you can pause cooking time by pressing the Start/Stop key once. The Start/Stop key indicator light will flash rapidly. [PAUSE] will appear on the display. To resume, press the Start/Stop key again.

Cancel a Menu

Canceling a menu stops the controller completely. The controller does not maintain set point temperatures or run time. You cancel a menu to change the menu, stop menu operation for any reason, or are preparing to shut off the oven.

• Press the Start/Stop key for 2 seconds. Heat outputs will switch off. Heat output indidicator lights will switch off. [`idLE] or time of day will be on the display.

Change Menu or Restart

With the controller in idle:

1. Set a menu as shown earlier.

2. Press the Start/Stop key.

Door Opening

When you open the oven door (when the oven door is open, the switch is closed and Event Input 1 is turned on) the unit will act as described below.

During the cooking sequence: time is paused - [`door] will appear on the display. The heat and fan output signals will shut off. During the preheat sequence: [`door] will appear on the display. The heat and fan

output signals will be shut off. During idle, the fan output signals will be shut off. When you close the door the unit will operate normally.

30 ■ Watlow MINIC HEF 2000 Application 9

Event Outputs

While running a menu when the Configuration Mode [EtYPE] / [FAn``] is set to [````2] :

When Low fan speed is on, Event Output 1 is on. When High fan speed is on, Event Output 2 is on.

While running a menu when the Configuration Mode [EtYPE] / [FAn``] is set to

[````1] :When the fan is on, Event Output 1 is on.

ç

WARNING: Starting or initiating a menu can cause or initiate fan motion. Appropriate reasonable care should be

taken to prevent personal injury or machine damage as a result of operator initiated or unexpected fan motion.

Temperature Alarms

The controller will alert you to temperature alarm conditions if they occur. If an alarm occurs, take action as determined by your supervisor. See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of temperature alarms.

Errors

The controller will alert you to errors if they occur. Errors are critical problems that shut down the unit. If an error occurs, an error message will appear on the display. You should switch off the power and call for service.

See the Appendix in the Hardware & Software Setup Guide for a Troubleshooting Chart and a summary of errors.

Application 9 Watlow MINICHEF 2000 ■ 31

Specifications (1032)

Control Mode

• Single and dual heat channels, PID or on/off.

• Microprocessor-based, programmable, reverse-acting control outputs.

• User-selectable embedded application software defines operation of display, keys, inputs, outputs, timing action.

• One-step auto-tuning, WatHelp diagnostics, WatCurve temperature compensation.

Agency

• CE approved:

89/336/EEC Electromagnetic Compatibility Directive

-EN 50081-1: Emissions

-EN 50082-1: Immunity 73/23/EEC Low-Voltage Directive

-EN 60730-1 and EN 60730-2-9: Safety

• NSF Listed, Criteria 2.

5

• AGA: UL tested to AGAstandard Z21.23, UL File #E43684.

• UL and C-UL recognized, UL 197, 873, 991 and CSA standard C22.2-24, File # E43684.

Operator Interface

• Membrane overlay, contamination and water resistant, (supplied by customer).

• LED display, 5-digit, 0.56 in high, red.

• Displays times, temperatures, user prompts and diagnostic codes.

• User-selectable time and temperature display formats.

• Temperature display formats

—˚F or ˚C.

• Time display formats—H:MM:SS, HH:MM, or MMM:SS.

• 8 discrete indicator LEDs, red.

• 6 tactile feedback keys.

• Menu-driven operation and manual modes available.

• WatHelp diagnostics.

• Real-time clock option displays time of day.

Accuracy

• Calibration accuracy and sensor conformity for Type J thermocouple and RTD, ± 0.35% of span for Type K and E thermocouples, ±1 LSD, 77°F ± 5°F ambient and rated line voltage of ±10%.

• Accuracy span: 1000°F (540°C) minimum.

• Temperature stability: ± 0.15˚F/˚F (0.15˚C/˚C) change in ambient typical.

Sensors/Inputs

• Contact inputs, TTL compatible with internal pull-up resistor, two available.

• Thermocouple,

3

software selectable Type J, K or E, 32 to 1200°F. (Dual-channel applications require at least one ungrounded thermocouple).

3

•RTD,

2- or 3-wire, platinum, 100, 500, 1000Ω, at 0°C, software selectable DIN or JIS curves, 0 to 1200°F (3-wire will function as 2-wire).

• Input A/D resolution: 15 bit.

Output Options

• Solid-state relay, 0.4A, with or without contact suppression.

• Switched dc signal, 4.5V to 5.25V, 30mA maximum output, minimum load resistance > 150Ω, non-isolated.

1

2

: ± 2.0°F

Audible Output Options

• Switched dc signal, 4.5V to 5.25V, 30mA maximum output, minimum load resistance > 150Ω, non-isolated.

• Internal audible alarm, 75dB at 10 cm.

Connectors

• Sensor Input Terminal Strip quick-connect.

• Power Supply & Input /Output Terminal

4

: RIACON, 6-position,

4

: AMP,

15-position, quick-connect.

Power/Line Voltage

• 20.4 to 26.4VÅ (ac), 47 to 63Hz.

• 15VA maximum.

• For CE applications, input power must be limited to 15W external to the control.

• Program retention upon power failure via non-volatile memory.

• Battery /real-time clock option: 6-year lithium battery, provides power backup upon power failure, operation resumption after power recovery, ability to display time of day.

Operating Environment

• 32 to 176°F (0 to 80°C), 0 to 90% RH, non-condensing.

Storage Temperature

• -40 to 176°F (-40 to 80°C).

Mechanical

• Case: polycarbonate Lexan with adjustable mounting collar (vertical or horizontal orientation), designed for mounting on 16-, 18-, 20- and 22-gauge panels.

• Internal panel mounting requires a specified panel cutout and four #6-32 studs or equivalent.

• Overall width x height x depth: horizontal - 4.13 in x

3.25 in x 2.00 in; vertical - 3.25 in x 4.13 in x 2.00 in (Assumes mating connectors are attached. Does not include wire bundle space requirements.).

• Vibration: 2g, 10 to 150Hz, applied in any one of three axes.

• Weight: 6.50oz maximum.

Program Storage

• All non-embedded user and factory programs are stored in non-volatile memory. Can be changed by reprogramming.

Sample/Update Rates

• 1 input: 4Hz.

• 2 inputs: 4Hz.

• PID: 1Hz.

• Control outputs: 100Hz.

• Display: 10Hz.

1

The MINICHEF 2000 controller is to be used in systems with an external high temperature limiting device.

2

Thermocouple lead resistance of 200Ω causes < 1°C error. RTD, 22 gauge wire will not contribute more than 0.086°F error /ft.

3

Dual channel applications require either two thermocouple sensors or two identical RTD sensor types.

4

For mating connector information, see Ordering Information Accessory section.

5

Certified for thermometer accuracy (oven and hot food holding applications from 32°F to 60°F) when used with RTD or type J thermo couple probes.

32 ■ Watlow MINIC HEF 2000 Specifications

Ordering Information

(1033)

M

INICHEF 2000™

Cooking controller with numerous food equipment application software sets, single and dual channel on/off or PID temperature regulation, timer and machine-function control, microprocessorbased, programmable, auto-tuning, WatCurve, WatHelp diagnostics, 24V

Å

(ac) power input, agency approved, flush mounted (membrane faceplate supplied by customer).

Inputs

1 = Dual thermocouple, Type J, K or E 2 = Dual RTD, platinum, 100Ω, curve

selectable

3 = Dual RTD, platinum, 500Ω, curve

selectable

4 = Dual RTD, platinum, 1000Ω, curve

selectable

Note: All models include two event inputs, switched dc logic signal, non-isolated.

Output Number 1

1 = Switched dc, 5V nominal, 30mA,

non-isolated

2 = Solid-state relay, Form A, 0.4A,

without RC suppression

3 = Solid-state relay, Form A, 0.4A,

with RC suppression

Output Number 2

1 = Switched dc, 5V nominal, 30mA,

non-isolated

2 = Solid-state relay, Form A, 0.4A,

without RC suppression

3 = Solid-state relay, Form A, 0.4A,

with RC suppression

Event Outputs 1 and 2

1 = 2 event outputs, switched dc, 5V nominal,

30mA, non-isolated

Battery and Real-time Clock

0 = None 1 = Includes battery and real-time clock

Audible Alarm

0 = Alarm signal available at connector,

switched dc, 5V nominal, 30mA, non-isolated

1 = Internal alarm included

Software

AA = Standard Food Equipment Application

Software Set XX =

Custom Set-up parameters or Made-To-Order

custom

Sales Engineer. Code number assigned by factory.

software. Consult your local Watlow

F 2 H A - _ _ _ 1 - _ _ AA

Ordering Information Watlow MINICHEF 2000 ■ 33

Ordering Information: Part Numbers & Accessories

MINICHEF 2000 Accessories

0836-0442-0000 Sensor Input Mating Connector,

(RIACON #31007106), 6-position, quick-connect terminal, screw connection for 28-14 AWG wires, tighten to 7in/lb

A001-0298-0000 Power Supply and I/O Mating

Connector Kit. Includes: – 1 AMP #1-640523-0, 15-position,

quick-connect terminal

– 15 AMP #641300-1 crimp pins

0238-0679-0000

0830-0479-0000 Prototyping EPROMExtraction Tool,

A001-0249-0001 120VÅ to 24VÅ (ac), stepdown

A001-0249-0002 208/240VÅ to 24VÅ (ac), step-

Prototyping & Training Membrane Overlay, adhesive-backed,

4.75 in x 4.75 in

AMP #821980-1

transformer, class 2, quick-connect terminals included

down transformer, class 2, quickconnect terminals included

Recommended Sources of Supply for Miscellaneous Items

DURA-TECH, Inc. •

LaCrosse, WI (608) 781-2570

Custom Membrane Faceplates

MINICHEF 2000 Documentation

WMC2-XUGN-0000 The Complete

2000 User Guide

WMC2-XADN-0000 The Complete

2000 User Guide on CD M

WMC2-XTDN-0000

WMC2-XSGN-0000 Hardware & Software WMC2-XAGN-0001 Cook-&-Hold Oven WMC2-XAGN-0002 Convection Oven WMC2-XAGN-0003 Deepfat Fryer Application WMC2-XAGN-0004 Griddle Application Guide

WMC2-XAGN-0005 Timer Application Guide WMC2-XAGN-0006 Shelf-Timer Application

WMC2-XAGN-0007 Rotisserie Oven

INICHEF

Disk Setup Guide Application Guide Application Guide Guide

Guide Application Guide

M

INICHEF

M

INICHEF

2000 Tutorial

AMP, Inc. • Harrisburg, PA 1-800-522-6752

RIA Electronic, Inc.

Eatontown, NJ (908) 389-1300

Prototyping EPROM Extraction

Tool

Part No. 821980-1

•

Pin Crimping Hand Tools

Part No. 90325-1 or 58514-1

•

Pin Extraction Hand Tool

Part No. 455822-2

•

RIACON Connectors

34 ■ Watlow MINIC HEF 2000 Ordering Information

Watlow Controls

Watlow Controls is a division of Watlow Electric Mfg. Co., St. Louis, Missouri, a manufacturer of industrial electric heating products since 1922. Watlow begins with a full set of specifications and completes an industrial product that is manufactured totally inhouse, in the U.S.A. Watlow products include electric heaters, sensors, controls and switching devices. The Winona operation has been designing solid state electronic control devices since 1962, and has earned the reputation as an excellent supplier to original equipment manufacturers. These OEMs depend upon Watlow Controls to provide compatibly engineered controls that they can incorporate into their products with confidence. Watlow Controls resides in a 100,000-square-foot marketing, engineering and manufacturing facility in Winona, Minnesota.

Technical Assistance

If you encounter a problem with your Watlow controller, refer to the Troubleshooting Chart in this guide. Also review all of your configuration information for each step of the setup to verify that your selections are consistent with your applications.

If the problem persists after checking all the steps, you can get technical assistance by calling Watlow Controls at (507) 454-5300, between 7 a.m. and 5 p.m. CST, and asking for an applications engineer. When you call have the following information on hand: the controller’s part number, date code, serial number, software revision number, and application number. Much of this information is available on the controller case. All of this information is also available via the MINICHEF 2000 main display by accessing the WatHelp Diagnostics Function under [`diag] in the Configuration Mode.

We Value Your Feedback

Your comments and suggestions on this manual are welcome. Please send them to, Technical Writer, Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN 55987-5580 or call (507) 454-5300 or fax (507) 452-4507.

Contact

• Phone: (507) 454-5300.

• Fax: (507) 452-4507.

• For technical support, ask for an Applications Engineer.

• To place an order, ask for Customer Service.

• To discuss a custom option, ask for the MINICHEF 2000 Product Manager.

Warranty

The MINICHEF 2000 is warranted to be free of defects in material and workmanship for 36 months after delivery to the first purchaser for use, providing that the unit has not been misapplied. Since Watlow has no control over its use, or misuse, we cannot guarantee against failure. Watlow's obligations hereunder, at Watlow's option, are limited to replacement or refund of purchase price of a unit which upon examination proves to be defective within the warranty period. This warranty does not apply to damage resulting from transportation, alteration, misuse, or abuse.

Returns

• Call or fax Customer Service for a Return Material Authorization (RMA) number before returning a control.

• Put the RMA number on the shipping label, and also on a description of the problem.

• 20% of net price restocking charge applies to all standard units returned to stock.

Note: All documentation of the MINICHEF 2000 is subject to change without notice.

Warranty and Returns Watlow MINICHEF 2000 ■ 35

Notes

36 ■ Watlow MINIC HEF 2000 Application 8

Notes

Application 8 Watlow MINICHEF 2000 ■ 37

Watlow MINICHEF™ 2000 Convection Oven Applications Guide

Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN U.S.A. 55987-5580 Phone: (507) 454-5300, Fax: (507) 452-4507

Watlow Electric MINICHEF 2000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Convection Oven Applications Guide

Table of Contents

Automatic Convection Oven

Configuration Mode Quick Reference

Program Mode Quick Reference

Step 7 Design a Faceplate Overlay

Step 8 Operate the Controller

Automatic Convection Oven

Configuration Mode Quick Reference

Program Mode Quick Reference

Step 7 Design a Faceplate Overlay

Step 8 Operate the Controller

Manual Convection Oven

Configuration Mode Quick Reference

Step 7 Design a Faceplate Overlay

Step 8 Operate the Controller

Specifications (1032)

Ordering Information

Ordering Information: Part Numbers & Accessories

Watlow Controls