Watlow CV Operating Manual
ISO 9001
CUSTOMER
SATISFACTION
Series C & Series TM
User’s Manual
0600-0044-0000 Rev. E Made in the U.S.A.
February 2008 $5.00
Series C - On-Off Temperature Controller
Series TM - Temperature Indicator
1241 Bundy Boulevard., Winona, Minnesota USA 55987
Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507 http://www.watlow.com
TOTAL
CUSTOMER
SATISFACTION
3 Year Warranty
ISO 9001
Registered Company
Winona, Minnesota USA
ç
CAUTION or
WARNING
Safety Information
We use note, caution and warning symbols throughout this book to draw your attention to important operational and safety information.
A “NOTE” marks a short message to alert you to an important detail.
A “CAUTION” safety alert appears with information that is important for protecting
your equipment and performance. Be especially careful to read and follow all cautions that apply to your application.
A “WARNING” safety alert appears with information that is important for protecting you, others and equipment from damage. Pay very close attention to all warnings that apply to your application.
The safety alert symbol, ç (an exclamation point in a triangle) precedes a general
CAUTION or WARNING statement.
The electrical hazard symbol, Ó (a lightning bolt in a triangle) precedes an electric
shock hazard CAUTION or WARNING safety statement.
Ó
Electrical
Shock Hazard
CAUTION or WARNING
Technical Assistance
If you encounter a problem with your Watlow controller, review your configuration information to verify that your selections are consistent with your application: inputs, outputs, alarms,
limits, etc. If the problem persists, you can get technical assistance from your local Watlow representative (see back cover), by e-mailing your questions to wintechsupport@watlow.com or by
dialing +1 (507) 494-5656 between 7 a.m. and 5 p.m., Central Standard Time (CST). Ask for for
an Applications Engineer. Please have the following information available when calling:
• Complete model number • System wiring information
• Basic Controller User’s Manual
Warranty
These controllers are manufactured by ISO 9001-registered processes and are backed by a
three-year warranty.
Return Material Authorization (RMA)
1. Call Watlow Customer Service, (507) 454-5300, for a Return Material Authorization (RMA)
number before returning any item for repair. We need this information:
• Ship to address • Bill to address
• Contact name • Phone number
• Method of return shipment • Your P.O. number
• Detailed description of the problem • Any special instructions
• Name and phone number of person returning the product.
2. Prior approval and an RMA number, from the Customer Service Department, is needed
when returning any unused product for credit. Make sure the RMA number is on the outside of
the carton, and on all paperwork returned. Ship on a Freight Prepaid basis.
3. After we receive your return, we will examine it and try to verify the reason for the return.
4. In cases of manufacturing defect, we will enter a repair order, replacement order or issue
credit for material returned.
5. To return products that are not defective, goods must be be in new condition, in the original boxes and they must be returned within 120 days of receipt. A 20 percent restocking charge
is applied for all returned stock controls and accessories.
6. If the unit is unrepairable, it will be returned to you with a letter of explanation.
7. Watlow reserves the right to charge for no trouble found (NTF) returns.
The Series C and Series TM user’s manual is copyrighted by Watlow Winona, Inc.,
© November 2006 with all rights reserved.
1
Overview
Watlow's Series C family of basic temperature controllers* provide an economical controller solution for
applications where simple on/off control is needed.
These controllers are available with or without an
operator interface and can be ordered in square 1/8th
DIN panel mount, din rail mount, open board or potted module design configurations. Push-on, quick connect spade terminal or removable screw clamp style
terminal block ordering options provide the electrical
connections.
The microprocessor design platform provides improvements in the performance, repeatability, and
accuracy offered by Watlow's current line of basic temperature control products.
The Series CV includes an operator interface to allow viewing and selection of the control set point. A
red four-character, seven-segment LED displays the set
point. It is also available with a push-to-show process
option. The set point selection is made with a continuous turn, velocity-sensitive rotary encoder. Set point
range temperature values are customer definable in
the product configuration part number.
The Series CF offers fixed control points. These
units are supplied without an operator interface. Operating set point temperature values are customer definable in the product configuration part number.
The Series TM is a temperature indicator only version. It is available in DIN rail or panel mount configurations.
The features and performance of these products
make them ideally suited for a wide range of industrial
control applications in the food preparation, industrial
machinery, packaging and plastic markets.
Watlow's Series C and TM controllers include industry-leading service, support and a 3-year warranty.
*Also available in an FM-approved limit version.
Features and Benefits
Four-Character LED Display
• Improves Set Point adjustment accuracy.
Fixed or Adjustable Set Points
• Tamper Proof Operation.
• Control Flexibility.
Set Point Adjustment Options
• Rotary encoder.
• Tactile increment and decrement keys.
Push to Set Option
• Reduce accidental set point adjustments.
Push to Display Process Option
• Allows viewing of process value.
Multiple Mounting Options
• Minimizes installation time.
Heat or Cool Operation
• Application flexibility.
Fahrenheit or Celsius Operation with Indication
• Application flexibility.
Sensor Break Protection
• Provides positive system shutdown.
Agency Approvals
• Meets requirements for agency certification.
• NEMA 4X/IP65 seal panel-mount versions available.
• W.E.E.E; CE; RoHS
Microprocessor Based Technology
• Accurate and repeatable control.
Stock to Four Day Delivery
Watlow Series C/TM • 1 • Chapter 1 Overview
2
Installation
Installing the Open Board Controller
61.7 mm
2.43 in
56.3 mm
2.22 in
Terminal Designation Sticker
45.07 mm
1.775 in
Screw Terminal Model
61.7 mm
55.9 mm
2.43 in
2.20 in
Use M2.5 (#4) mounting
hardware, not included
SWDC+
SWDC-
N.O.
COM
N.C.
L2
45.07 mm
1.775 in
.6
.7
.8
.9
.10
L1
61.7 mm
2.43 in
56.3 mm
2.22 in
Terminal Designation Sticker
Spade Terminal Model
61.7 mm
55.9 mm
2.43 in
2.20 in
Use M2.5 (#4) mounting
hardware, not included
Figure 2a
1. Locate and drill four 3.2 mm (0.125 in) holes in the desired panel location. See Figure 2a for hole locations.
2. Mount the controller using four M2.5 (#4) screws.
Installing the Potted Controller
Terminal Designation Sticker
46.6 mm
1.84 in
35.1 mm
1.38 in
35.1 mm
1.38 in
70.1 mm
2.76 in
102.9 mm
4.05 in
88.9 mm
3.50 in
Terminal Designation Sticker
Terminal Designation Sticker
Use [3.5M] #6 hardware,
not included
Figure 2b
1. Drill two 5 mm (0.187 in) diameter holes in the desired panel location. See Figure 2b for hole locations.
2. Mount the controller using two M3.5
(#6) screws.
Watlow Series C • 2 • Chapter 2 Installation
39.1 mm
(1.54 in)
78.1 mm
(3.08 in)
80.3 mm
(3.16 in)
101.6 mm
(4.00 in)
112.3 mm
(4.42 in)
Part Number Label
94.7 mm
(3.73 in)
90.7 mm
(3.57 in)
1.
2.
3.
TC-/S1
4.
TC+/S2
5.
SW-1
SW-2
81.8 mm
To install or remove,
press down here.
See Installing/ Removing
the DIN Rail Controller
procedures below.
DIN rail, upper
mounting clip
35 mm x 7.5 mm
DIN rail is not included
S3
with the assembly
(3.22 in)
80.0 mm
(3.07 in)
Panel mounting the bracket requires
two M3.5 (#6) screws, not included
To install, press in here.
To remove, pull out here.
See Mounting/Removing the
DIN Rail Controller procedures below.
Agency Label
Spade Terminal Model
Figure 3a
Sub-Panel Mounting
1. Using the controller as a location template, mark
both mounting holes.
2. Drill and tap two 2.7 mm (0.106 in) diameter holes
in the desired panel location. See Figure 3a
above for hole locations.
3. Mount the controller using two M3.5 (#6) screws.
DIN Rail Mounting
1. Place the DIN rail upper mounting clip on the top
edge of the DIN rail. See Figure 3a. DIN rail
spec, DIN 50022, 35 mm x 7.5 mm (1.38 in x 0.30
in).
2. Press down firmly on the top back edge of the DIN
rail bracket and push in on the bottom, front edge
of the bracket. The controller “snaps” securely onto
the rail. See Figure 3a. If the controller does not
snap on, check to see if the DIN rail is bent. Minimum clipping distance is 34.8 mm (1.37 in), the
maximum is 35.3 mm (1.39 in).
Terminal Designation Sticker
Screw Terminal Model
Tactile Key Model
rail bracket and the case. Rotate the screwdriver to
release the DIN rail bracket hooks from the ridges
on the case, while firmly pushing the controller out
the front of the DIN rail bracket. Alternate back
and forth between the top and then the bottom. Be
sure to support the controller as it comes out of the
bracket. See Figure 3b.
Figure 3b
Press forward
with thumb
Removing the DIN Rail Controller
1. Remove power from the system.
2. Remove all the wiring connections from the back of
the controller.
3. While pressing down on the top, back edge of the
DIN rail bracket, pull forward on the bottom, front
edge of the DIN rail bracket. See Figure 3a.
Insert flat blade
screwdriver here
Removing the Controller from the DIN Rail
Bracket
1. Remove power from the system.
2. Remove all the wiring connections from the back of
the controller.
3. Remove the DIN rail bracket from the DIN rail.
4. Insert a flat blade screwdriver between the DIN
Watlow Series C • 3 • Chapter 2 Installation
72.4 mm
(2.85 in)
68.0 mm
(2.68 in)
72.4 mm
(2.85 in)
19.1 mm
(0.75 in)
minimum
84.5 mm square
(3.33 in)
Panel Cutout
Panel Thickness
1.52 to 3.18 mm
(0.060 to 0.125 in)
19.1 mm
(0.75 in)
minimum
68.0 mm
(2.68 in)
Customer Front Panel
Terminal Blocks Locations
on Screw Terminal Models
Spade Terminal Model
Part Number Label
Mounting Bracket
6.4 mm
(0.25 in)
Tactile Key,
Spade Terminal Model
19.2 mm
(0.76 in)
51.7 mm
(2.04 in)
Contact your local Greenlee supplier for the appropriate
punch kit and cutout tool for rapid mounting.
Screw Terminal Models
Screw Terminal Model
Figure 4
Installing the Square 1/8 DIN Panel Mount
Controller
1. Make the panel cutout using the mounting dimensions above.
2. Remove mounting bracket from the back of the controller.
3. If your controller has a gasket, check to see that the
gasket is not twisted, and is seated within the case
bezel flush with the panel. Place the case in the
cutout. Make sure the gasket is between the panel
cutout and the case bezel.
4. While pressing the front of the case firmly against
the panel, slide the mounting collar over the back of
the control. The tabs on the collar must line up with
the mounting ridges on the case for secure instal-
Watlow Series C • 4 • Chapter 2 Installation
lation. See Figure 4. Slide the collar firmly against
the back of the panel, getting it as tight as possible.
To ensure a tight seal, use your thumb to lock the
tabs into place while pressing the case from side to
side. Don’t be afraid to apply enough pressure to install the controller. The tabs on each side of the collar have teeth that latch into the ridges. Each tooth
is staggered at a different height, so only one of the
tabs on each side are ever locked into the ridges
at a time. Confirm that the tabs on one side of the
collar correspond with those on the opposite side.
Make sure the two corresponding tabs are the only
ones locked in the ridges at the same time. If the
corresponding tabs are not supporting the case at
the same time, you will not have a NEMA 4X seal.
5. Insert the control chassis into its case and press the
bezel to seat it. Make sure the inside gasket is also
seated properly and not twisted. The hardware installation is complete. Proceed to the wiring section.
2. Insert the controller into the panel cutout.
3. While pressing the bezel firmly against the panel,
slide the mounting bracket over the back of the controller. Be sure the levers on the mounting bracket
line up with the teeth on the case.
4. Press the bracket up to the back of the panel. The
controller should fit tightly in the panel cutout.
Removing the Panel Mount Square 1/8 DIN
Controller
1. Remove power from the system.
2. Remove all the wiring connections from the back of
the controller.
3. Slide a thin, wide tool (putty knife) under all three
mounting tabs, top then bottom, while pushing forward on the back of the case. Be ready to support
the controller as it slides out of the panel cutout.
Watlow Series C • 5 • Chapter 2 Installation
3
Wiring
Ó
Warning:
Use National Electric (NEC) or
other country-specific standard
wiring and safety practices when
wiring and connecting this controller to a power source and to
electrical sensors or peripheral
devices. Failure to do so may
result in damage to equipment
and property, and/or injury or
loss of life.
Note: Insulated terminals required for quick connect style
terminals.
For quick connect terminals 1,
2, 6, 7, 8, 9, and 10, AMP P/N
3-520406-2 or equivalent recommended. Use Amp crimp tool
P/N 58078-3, insert 90391-3.
For quick connect terminals 3, 4,
and 5, AMP P/N 2-520405-2 or
equivalent recommended. Amp
crimp tool P/N 58078-3, insert
58079-3.
The terminals on the back of the Series C and Series TM controllers are
the same for all of the package styles. They are 6.3 mm (0.25 in) quick connect,
push on style terminals or removable screw terminal block. The terminal style
is an ordering option.
Check the part number to determine your hardware configuration. Refer to
the wiring diagrams appropriate for your controller’s configuration.
All outputs are referenced to a de-energized state.
Wiring Guidelines
1. Use the correct thermocouple type per the model number on the case stick-
er of the unit. See dimension drawings for sticker locations.
• Use correct thermocouple polarity. Red is usually negative.
• If you must extend thermocouple leads, use thermocouple extension
wire to minimize errors.
• Be sure you have good crimp connections on your thermocouple con-
nections.
• Insulate the thermocouple mounting from the mounting surface to
prevent heat migration input errors.
• Thermocouple leads should be routed separately from any high voltage
lines.
• Long lead lengths create electrical resistance and there is not any lead
resistance compensation. When using a two or three-wire RTDs, there will
be an additional 2.6° C (4.7° F) error for every 1Ω of lead length resistance.
That resistance when added to the resistance of the RTD element, can result in erroneous input to the temperature controller.
2. In electrically-noisy environments (heavy switching contactors, motors,
solenoids, etc.), use shielded thermocouple lead wire with the shield connected at the sensor end only.
3. Use a separate thermocouple to maintain the limit function of this
controller; do not parallel thermocouple input from the primary controller.
4. All wiring and fusing must conform to the National Electric Code (NEC)
NFPA70 and any other locally applicable codes.
5. Fuse the independent load voltage on the L1 (hot) side and connect it to
the common (C) side of the relay.
Note: The model number determines the connection terminal style. See below for terminal locations.
1
2
3
4
5
6
7
8
9
10
Watlow Series C • 6 • Chapter 3 Wiring
1
2
6
7
3
4
5
8
9
10
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