Watlow Electric MINICHEF 2000 Leitfaden
MINICHEFTM 2000
Fast Start Guide
Watlow Controls
1241 Bundy Blvd.
P.O. Box 5580
Winona, Minnesota U.S.A. 55987-5580
(507) 454-5300, Fax (507) 452-4507
WMC2-XFSN-0008
June 1997
(1116)
Made in the U.S.A.
TOTAL
CUSTOMER
SATISFACTION
Registered Company
Winona, Minnesota USA
ISO 9001
97
For All Applications
Introduction
Welcome to the MINICHEF 2000™
The MINICHEF 2000 is a configurable, time/temperature and machine function controller
that is preprogrammed for dozens of cooking applications. Its compact size and optional
horizontal/vertical orientation facilitates streamlined equipment design. It withstands
rigorous application environment conditions, with an 80ºC ambient rating and superior
EMI/RFI immunity. It is also backed by Watlow’s exclusive three-year warranty.
Each unit is equipped to offer:
• two temperature sensor inputs
• two event inputs (for machine control)
• two heat control outputs
• two event outputs (for machine control)
• one audible alarm output
(See diagram below.)
Depending on the application software you select, some or all of the inputs or outputs
are used. See the Application Selection Table that follows.
Figure 2 — Inputs and outputs.
See panel 23 for information about ordering
The
Complete M
INI
C
HEF
2000 User Manual
.
AB
DE
C
F
GH
4 Inputs
Input 1
Thermocouple or RTD
Input 2
Thermocouple or RTD
Event Input 1
Event Input 2
5 Outputs
Output 1
Switched DC or Solid-state Relay
Output 2
Switched DC or Solid-state Relay
Output 3
Event Output 1
Output 4
Event Output 2
Output 5
Audible Alarm Output
MINICHEF™ 2000 Application Software Selection Table
To select the application software that best suits your equipment and purpose, first
locate the type of equipment in the left column, then check the other columns for fea-
tures and options you need. The application number is on the right (Appl#). Make a
note of the application number. You will be using this number later when programming
your controller. The guide for each application contains specific configuration and pro-
gramming parameters, and operating instructions. Note that the use of the software
below is not limited to the equipment types listed in the first column.
Table 3 — Application selection table.
Intended Equipment Type Operation No. of Heat Output Timed Meat Fan Steps Appl Notes
(May also apply to other apps) Mode Menus Channels Zones Probe Speeds #
COOK & HOLD OVENS Auto 6 Single 1 Yes 1 or 2 2 1
Auto 17 Single 1 Yes 1 or 2 2 2
Auto 6 Single 1 No 1 or 2 2 3
Auto 20 Single 1 No 1 or 2 2 4
Manual N/A Single 1 Yes No 1 or 2 5
Manual N/A Single 1 No No 1 or 2 6
CONVECTION OVENS Auto 6 Single 1 No 1 or 2 4 7
Auto 15 Single 1 No 1 or 2 4 8
Manual N/A Single 1 No 1 or 2 1 or 2 9
DEEPFAT FRYERS Auto 4 Single 1 No No 1 10
Auto 40 Single 1 No No 1 11
Manual N/A Single 1 No No 1 12
Pressurized Auto 6 Single 1 No No 1 13
Pressurized Auto 40 Single 1 No No 1 14
Pressurized Manual N/A Single 1 No No 1 15
Auto 6 Single 1 No No 1 16
Auto 2/4 Single 2 No No 1 17
Auto 40 Single 1 No No 1 18
Manual N/A Single 1 No No 1 19
GRIDDLES
Clam Shell Auto 6 Dual 1 No No 1 20
Clam Shell Manual N/A Dual 1 No No 1 21
One-sided Auto 6 Single 1 No No 1 22
One-sided Manual N/A Single 1 No No 1 23
TIMERS
No temp. control Auto 6 N/A 6 No No 1 24
No temp. control Manual N/A N/A 1 No No 1 25
SHELF TIMER Auto 6 Single 6 No No 1 26
ROTISSERIE OVENS Manual & Auto 30 Single 1 Yes Yes (1) 1 or 2 27
Manual N/A Single 1 Yes Yes (1) 1 or 2 28
Overview of Key Steps, from Installation through Operation:
1 Install the controller
• Use the panel knock-out pattern guidelines in this guide.
2 Wire the controller
• Use the connector/wiring information in this guide.
3 Configure the controller
• After applying power, use the Configuration Mode to enter the equipment
Application Number (from the MINICHEF 2000 Software Selection table), set up the
controller and access the thermal optimization functions.
• Set the Application Number Security Lock, if necessary, to prohibit end users from
changing Application Number.
• To speed configuration, you may want to use the Prototyping/Training Overlay
(available separately, see Ordering Information on panel 23).
Note: Always select and enter the application number first. The parameters that follow are based on it. See instruc-
tions in the
Hardware & Software Setup Guide
.
4 Program the menus (automatic menu applications only)
• Use the Program Mode to program automatic menus for the chosen application.
• To ease menu programming, you may want to use the Prototyping/Training Overlay
(available separately, see Ordering Information on panel 23).
5 Set menu security (automatic menu applications only)
• Set up menu security, if necessary, to prohibit end users from changing values.
(Because the controller defaults to no security, the end user may be able to access
the Program Mode to change parameter values based on menu.)
6 Set Real-time Clock
This applies only to controllers purchased with the Real-time Clock option. It allows you
to see the time of day instead of “idle” on the display.
7 Design faceplate overlay
• Use the Overlay Design Guidelines in this guide to design, manufacture and apply a
membrane overlay for the controller faceplate. This custom-designed overlay
becomes the end-user interface.
• For overlay designs to suit specific applications, see the suggestions in each applica-
tion guide.
8 Operate the MINICHEF 2000
• Use the Operation Mode to run the installed controller. This is the default mode.
Operation instructions are included in each application guide (available separately,
see ordering information on back page).
General Description
Getting to know your MINICHEF™2000
Front view Back view
Shown with mating connector terminals installed.
Mating connectors and terminals are purchased
separately.
Figure 5a — Front and back view.
Figure 5b — Mounting collar.
Dimensions:
Overall width x height x depth (Includes MINICHEF 2000 with mounting collar and
space required for mating connectors. Does not include wire bundle space require-
ments):
4.13 in x 3.25 in x 2.00 in (with collar mounted in horizontal position)
3.25 in x 4.13 in x 2.00 in (with collar mounted in vertical position)
4.13 in.
3.25 in.
Mounting collar
INPUT#1 INPUT#2
TC+ TC- TC+ TC-
NOT
USED
NOT
USED
WATLOW
CONTROLS
IIIIIIIIII IIIIIII IIIIIIIIII IIIIIIII
13
10
7
4
1
14
11
8
5
2
15
12
9
6
3
2=OC+
3=OC3-
5=OC+
6=OC4-
8=EI1+
9=ALARM
11=EI2+
12=EI1-
13=L2 24V
14=L1 24V
15=EI2-
OPER. RANGE 0-80 DEG C
NSF
c
AB
DE
C
F
GH
3.00 in.
3.00 in.
2.00 in.
Step 1 Install the Controller
• Select sheet metal (16-, 18-, 20- or 22- gauge panel).
• For panel knock-out patterns, see subsequent pages of this guide.
• Use #6-32 mounting studs x 0.50” length minimum, either pressed or welded.
• Install the unit with either a horizontal or vertical mounting collar position.
• Install mating connectors to unit.
Note: This device should be used in systems that incorporate a separate high limit device for safety.
Figure 6 — Mounting the MINICHEF 2000.
Mounting Collar
in horizontal position
Panel showing recommended knock-out pattern
MINICHEF 2000 Controller
Panel Knock-out Pattern for a Mounting Collar in a Horizontal Position
Figure 7a — Pattern for horizontal panel 16- or 18-gauge thick.
Figure 7b — Pattern for horizontal panel 20- or 22-gauge thick.
.800 in. ref
#6-32 stud (4)
minimum recommended
length 0.50 in.
2.462 in.
2.125 in.
1.662 in.
1.530 in.
1.250 in.
0.875 in.
0.375 in.
0.125 in.
0.000 in.
ø0.53 in. (6)
ø0.135 in. (8)
C/L
1.875 in.
1.000 in.
0.500 in.
0.000 in.
0.500 in.
1.000 in.
1.875 in.
1.337 in.
1.338 in.
.875 in. ref
#6-32 stud (4)
minimum recommended
length 0.50 in.
2.535 in.
2.125 in.
1.660 in.
1.530 in.
1.250 in.
0.875 in.
0.375 in.
0.125 in.
0.000 in.
0.250 in.
ø0.53 in. (6)
ø0.135 in. (10)
C/L
1.875 in.
1.000 in.
0.500 in.
0.000 in.
0.500 in.
1.000 in.
1.875 in.
1.405 in.
1.405 in.
1.375 in.
1.375 in.
Panel Knock-out Pattern for a Mounting Collar in a Vertical Position
Figure 8 — Pattern for vertical panel 16- or 18-gauge thick.
Figure 8 — Pattern for vertical panel 20- or 22-gauge thick.
.800 in. ref
#6-32 stud (4)
minimum recommended
length 0.50 in.
2.462 in.
3.000 in.
1.662 in.
1.530 in.
1.250 in.
0.875 in.
0.375 in.
0.750 in.
0.000 in.
ø0.53 in. (6)
ø0.135 in. (8)
C/L
1.000 in.
0.500 in.
0.000 in.
0.500 in.
1.000 in.
1.337 in.
1.338 in.
1.000 in.
1.000 in.
.875 in. ref
#6-32 stud (4)
minimum recommended
length 0.50 in.
2.535 in.
3.000 in.
1.660 in.
1.530 in.
1.250 in.
0.875 in.
0.375 in.
0.750 in.
0.000 in.
0.250 in.
ø0.53 in. (6)
ø0.135 in. (10)
C/L
1.000 in.
0.500 in.
0.000 in.
0.500 in.
1.000 in.
1.405 in.
1.405 in.
1.375 in.
1.375 in.
1.000 in.
1.000 in.
Step 2 Wire the Controller
Position the connector with the beveled edges at the top.
Not all software applications use or require wiring to all inputs and outputs.
For specific information consult the guide for the application you are using.
Note: The following illustration is a view of the back of the controller, not of the mating connector.
Power Wiring
Figure 9a — 24VÅ(ac) Low Voltage.
Ó
WARNING: To avoid potential electric shock, use National Electric Code (NEC) safety practices when wiring and con-
necting this unit to a power source and to electrical sensors of peripheral devices. Failure to do so could result in
injury or death.
Sensor Inputs 1 and 2
Note: The following illustrations are views of the back of the mating connector, not of the controller.
F 2 _ _ – 1 _ _ _ - _ _ _ _ (Type J, K, or E).
Figure 9b — Dual Thermocouple Option.
12
12
345
45
6
Input 1 Wiring Input 2 Wiring
123
4
1413
56
789
10 11 12
13 14 15
Fuse
L1 L2
Dual RTD Option (platinum)
F 2 _ _ – 2 _ _ _ – _ _ _ _ (100ΩRTD, curve selectable)
F 2 _ _ – 3 _ _ _ - _ _ _ _ (500ΩRTD, curve selectable)
F 2 _ _ – 4 _ _ _ - _ _ _ _ (1000ΩRTD, curve selectable)
Figure 10a — 2-wire RTD.
Figure 10b — 3-wire RTD: (will function as a 2-wire RTD).
Note: If your chosen software application does not require two sensor inputs, it is not necessary to wire Input 2. For
specific information, consult the application guide for the application you are using.
Event Inputs 1 and 2
Note: The following illustration is a view of the back of the controller, not of the mating connector.
F 2 _ _ - _ _ _ _ - _ _ _ _
Figure 10c — Switched DC (two per unit, non-isolated).
Note: Not all software applications require event inputs 1 and 2. For specific information consult the application
guide for the application you are using.
123
456
78
11
9
10 11 12
15
13 14 15
Event Input 2
123
456
788
9
10 11 12 12
13 14 15
Event Input 1
1
S1 S2 S3
23456
Input 1 Wiring Input 2 Wiring
S1 S2 S3
1
S1 S2 S1 S2
23456
Input 1 Wiring Input 2 Wiring
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