Watlow series l User Manual
0600-0042-0000 Rev. B
March 2004
Installation Manual
ISO 9001
CUS
ER
TISF
CTI
Series N7
Time and Temperature
Controller
Made in the U.S.A.
$15.00
1241 Bundy Boulevard., Winona, Minnesota USA 55987
Phone: +1 (507) 454-5300, Fax: +1 (507) 452-4507 http://www.watlow.com
TOTAL
CUS
TOMER
SATISF
ACTI
3 Year Warranty
ISO 9001
Registered Company
Winona, Minnesota USA
ON
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.
Warranty
The Series N7 is manufactured by ISO 9001-registered processes and is
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 determine the cause
for your action.
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% 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. Repair costs will not exceed 50 percent of the original cost.
7. Watlow reserves the right to charge for no trouble found (NTF) returns,
not to exceed 20% of the original net price.
The Series N7 User’s Manual is copyrighted by Watlow Winona, Inc., © March
2004 with all rights reserved.
ç
CAUTION or
WARNING
Ó
Electrical
Shock Hazard
CAUTION or WARNING
Watlow Series N7 ■ 3 ■ Table of Contents
TC
Table of Contents
Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Chapter 2: Install and Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Install or Replace the Relay/High-Voltage Output Module . . . .24
Install or Replace the Ethernet Module . . . . . . . . . . . . . . . . . .25
Chapter 1: Overview ■ 4 ■ Watlow Series N7
Overview
1
Series N7 Controller
Watlow’s Series N7 temperature controller provides ample flexibility for use in a broad range of
applications. The Series N7 delivers up to four zones
of on-off or PID control, that can be sensed with thermocouples (types J, K and E), 2-wire RTDs and 3wire RTDs. Voltage or process inputs are also available.
The Series N7 offers a wide variety of outputs.
The base model has six switched dc outputs, with a
nominal output voltage of 5V and a maximum current of 30 mA. Two additional switched dc outputs
can be added, for a total of eight possible outputs. An
optional high-voltage board provides up to six highvoltage outputs, in place of the switched dc outputs.
The base output module has two solid-state
relays; an option of four additional solid-state relays
is available. The solid-state relays have a maximum
operating current of 0.4 amps. Other available
options offer either two or four electromechanical
relays, or four no-arc relays. The electromechanical
relays and no-arc relays each have a maximum operating current of 8 amps. The maximum operating
voltage for all high-voltage options is 250VÅ (ac).
Because the Series N7 can operate different types
of equipment, it can replace other controllers, which
simplifies inventory and manufacturing, and reduces
your supplier base. The Series N7 can operate under
many rigorous environmental conditions with an
80°C (176°F) ambient rating and a superior immunity to electrical interference.
The controller is tested to UL and CE standards.
Features and Benefits
Custom Firmware
• Allows you to customize multiple applications in
one controller.
Custom Overlay
• Customize your interface with up to 32 keys and
32 indicator lights.
Multiple Inputs and Outputs
• Enough inputs and outputs to run most applications.
• Up to four loops of control, control temperatures
and times.
• Machine functions.
Communications
• Capable of flash downloading firmware, and of
Modbus and PC communications.
Ethernet Communications Add-on Board
• NAFEM Protocol and development of additional
memory
Mounting Options
• The Series N7 mounts either vertically or horizontally to fit your equipment.
Watlow Series N7 ■ 5 ■ Chapter 2: Install and Wire
Install and Wire
2
Series N7 Controller Dimensions
Vertical
Dimensions
with Add-on
Modules
6.15 mm
(0.24 in)
197.74 mm (7.79 in)
72.14 mm (2.84 in)
61.10 mm (2.41 in)
Chapter 2: Install and Wire ■ 6 ■ Watlow Series N7
Vertical View with Add-on Modules
(exploded view)
(4) Nylon Spacers
(3/16 X 5/16 X 1/16)
Press spacer onto standoff
clips prior to mounting
Ethernet Add-on Module
(see Appendix for details)
Relay/High-Voltage Output Add-on
Module (see Appendix for details)
Watlow Series N7 ■ 7 ■ Chapter 2: Install and Wire
Horizontal Right
Horizontal Left
6.15 mm
(0.24 in)
61.10 mm (2.41 in)
72.14 mm (2.84 in)
6.15 mm
(0.24 in)
197.74 mm (7.79 in)
61.10 mm (2.41 in)
72.14 mm (2.84 in)
197.74 mm (7.79 in)
Chapter 2: Install and Wire ■ 8 ■ Watlow Series N7
Cutout Standoff -Vertical
For Horizontal Left, rotate 90° counter-clockwise.
For Horizontal Right, rotate 90° clockwise.
4X 60.96 mm
(2.400 in
)
54.91 mm
(2.162 in
)
31.75 mm
(1.25 in
)
2X 60.96 mm
(2.400 in
)
2X 123.63 mm
(4.867 in
)
2X 186.57 mm
(7.345 in
)
2X 12.71 mm
(.500 in
)
2X 24.03 mm
(.946 in
)
71.12 mm
(2.800 in
)
4X 45
˚
Back side of pane
l
4X Blind #4-40 X .75 in
threaded standoff,
Pem BSOS-440-24
or equivalent.
(4X #4-40 X .25 in long
machine screw required
)
4X Blind #4-40 X .31 in
threaded standoff,
Pem BSOS-6440-10
or equivalent.
(4X #4-40 X .75 in long
machined screw required
)
C
L
C
L
Minimum panel thickness:
1.02 mm (0.040 in
)
Watlow Series N7 ■ 9 ■ Chapter 2: Install and Wire
Location of Pins and Ports for Inputs and Outputs
Figure 9a — Power Wiring
• Nominal voltage: 24VÅ (ac)
• Class 2 power source required.
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.
Ó
Warning: If high voltage is applied to the 24VÅ (ac) input,
irreversible damage will occur.
Note:
To prevent ground loops, maintain isolation from input to
output when using switched dc or analog process outputs.
Use ungrounded thermocouples.
5-pin Master
9-pin Slave
Communications Port
Communications Port
Input 3
Input 4
16 pins
Power
Control Outputs 1 & 2
Event Inputs 1 to 4
Event Outputs 1 to 4
1
2
3
4
5
6
High Voltage Module
High-voltage Control Outputs 4
High-voltage Event Outputs 5 & 6
6
5
Input 2
4
3
2
Input 1
1
14 pins
Control Outputs 3 & 4
Process Outputs 1 & 2
Event Inputs 5 to 8
High Voltage Module
High-voltage
Control Outputs 1 to 3
16
14
15
13
12
345678
2
9
91011
1
1
L2
L1
Loading...