Watlow V4 User Manual
98
TOTAL
CUSTOMER
SATISFACTION
Series V4
Users Manual
General Purpose
1/4 DIN Temperature Controller
Watlow Controls
1241 Bundy Blvd., P.O. Box 5580, Winona, Minnesota USA 55987-5580
Phone: (507) 454-5300, Fax: (507) 452-4507, http://www.watlow.com
December 1998
(1464)
Overview
The V4 1/4 DIN panel mount controller is a general purpose industrial PID temperature
controller. The V4 provides a reliable cost-effective solution for most temperature control
applications. Thermocouple, RTD, and Current and Voltage sensors are supported. Dual
outputs can be configured to support heating and cooling. The secondary output can also be
configured as an alarm.
V4 features include: a NEMA 4X front panel seal, a 3-year warranty, meets European CE
requirements and has a 4 inch deep case with removable connectors for wiring convenience.
Figure 2a — Series V4 inputs and outputs.
Figure 2b - Controller dimensions.
Mounting Brackets
Front
Bezel
Terminal
Block
Mounting Slots
Terminal
Block
M3 Mounting Screw
Mounting Collar
External
Gasket
Customer's Front Panel
3.58"
(91.03mm)
4.21"
(106.83mm)
3.83"
(97.18mm)
4.25"
(107.9mm)
V4
1
2
%
Single Input Type J, K, T, N or
S Thermocouple,
RTD or Process
Output 1 Heat or Cool
Dual Control Output PID or ON/OFF, User Selectable
Output 2 Heat, Cool,
Alarm or None
Keys and Displays
V4
1
2
%
Lower Display: Indicates
set point, output value,
parameters for data in the
upper display, or error and
alarm codes.
• To set to blank, set
[`dsP] to [`Pro] in the
Setup Menu.
Infinity/Home Key:
• Press once to clear
any latched alarms.
Also disables
deviation alarm
output if silencing is
enabled.
• Press again within
five seconds to
change from Auto to
Manual or vice versa.
While in Manual
mode, percent power
is in the lower display
sensor error.
Up-arrow and Down-arrow Keys:
Increases or decreases the value of
the displayed parameter.
• Press lightly to increase or
decrease the value by one.
• Press and hold down to increase
or decrease the displayed value at a
rapid rate. New data will self-enter
in five seconds, or can be entered by
pressing the Advance Key.
• Press both simultaneously for
three seconds to enter the Setup
Menu. The [`LOC] parameter
appears.
• Continue pressing both keys to
enter the Calibration Menu.
Output 1 Indicator Light: Lit
when Output 1 is energized.
Upper Display: Indicates
the process value, actual
temperature, operating
parameter values or an open
sensor. When powering up,
the Process display will be
blank for five seconds.
• To set to blank, set [`dsP]
to [`SEt] in the Setup
Menu.
Advance Key: Press to
advance through the
Operations, Setup, and
Calibration Menus. In the
Auto mode, new data is
self-entering in five
seconds.
Output 2 Indicator Light: Lit
when Output 2 is active. This
output can be configured as a
control or alarm output.
% Percent Power Indicator Light:
• Lit: the controller is in Manual
operation. Press the ˆInfinity key
twice to enter Automatic operation.
• Blinking: press the ˆInfinity key to
toggle between Auto and Manual.
Returns to its previous state and stops
blinking if the ˆInfinity key is not
pressed within five seconds.
Installation and Removal
Figure 4 - Series V4 multiple panel cutout dimensions.
NOTE: Measurements between panel cutouts are the minimum recommended.
Installing the Series V4 Controller
Installing and mounting requires access to the back panel.
1. Make the panel cutout using the panel cutout dimensions as shown in Figure 4.
2. Make sure the rounded side of the external case gasket is facing the panel surface.
3. Check to see that the gasket is not twisted, and is seated within the case bezel flush with the
panel.
4. Slightly compress the top and bottom side of the V4 Case while pulling the controller into the
panel cutout (Figure 5a). Slide the mounting collar over the back of the controller. The tabs on
the collar must line up with the mounting ridges on the case for secure installation. The tab
holes are facing the back of the controller.
5. Adjust the mounting bracket screws enough to allow for the mounting collar and panel thickness. Snap the upper and lower mounting brackets on the case of the controller (Figure 5 b).
Make sure all the grips are well engaged on the mounting slots of the controller. (The four
screw heads are facing the back of the controller.)
6. Make sure the case is seated properly. Tighten the installation screws firmly against the
mounting collar to secure the unit (Figure 5c). To ensure NEMA4X seal, there should be no
space between the bezel and panel. Over tightening the screws will distort the case and
make it difficult to remove or replace the controller.
V4
1
2
%
Panel Cutout
Panel
Thickness
0.375"
9.5 mm)
3.62"
(92mm)
3.62"
(92mm)
0.85"
(20mm)
minimum
0.85"
(20mm)
minimum
3.93"
(99.82mm)
3.93"
(99.82mm)
Installation and Removal (continued)
Figure 5a - Slightly compress the case while Figure 5b - Snap the top and bottom mounting
pulling the controller into the panel cutout. bracket into the slots.
Figure 5c - Tighten screw to secure the controller. Figure 5d - Remove the controller using a flat
screwdriver.
NOTE: Be careful not to over-tighten the screws. This may cause the mounting cover to fail. Over-tightening occurs when the front bezel is touching the customer’s front panel.
Removing the Series V4 Controller
1. Loosen the upper and lower mounting bracket screws.
2. Use a flat screw driver to unsnap the four grips on the opposite side of upper and lower
mounting brackets. Push the brackets back and forth gently until they can be pulled off easily.
3. Remove controller from the panel.
Wiring the Series V4
Power Wiring
High Voltage
100 to 240VÅ (ac), nominal (85 to 264 actual) V4TH - _ _ _ _ - _ _ _ _
Low Voltage
14 to 24V‡ (ac/dc) V4TL - _ _ _ _ - _ _ _ _
Figure 6 - Power wiring.
Sensor Installation Guidelines
We suggest you mount the sensor at a location in your process or system where
it reads an average temperature. Put the sensor as near as possible to the
material or space you want to control. Air flow past this sensor should be moderate. The sensor should be thermally insulated from the sensor mounting.
ç
WARNING:
To avoid damage to
property and equipment and/or injury or
loss of life, use
National Electric
Code (NEC) standard
wiring practices to
install and operate
this unit. Failure to
do so could result in
injury and/or death,
or such damage.
NOTE:
Taking the unit out of
the case is not a normal operating condition and should only
be done by a qualified maintenance
installation technician. Power to the
case should be disconnected before
removing or
installing the controller into its case.
∫
WARNING:
The case terminals
may still carry live
voltage when the
unit is removed.
∫
WARNING:
Irreversible damage
will occur if high
voltage is applied to
the low voltage unit.
L1 L2
18
17
16
15
14
13
OFF
1 2
4
5
6
8
7
fuse
8
7
1 2
1 2
ç
WARNING:
To avoid damage to
property and equipment and/or injury or
loss of life, use
National Electric
Code (NEC) standard
wiring practices to
install and operate
this unit. Failure to do
so could result in
injury and/or death,
or such damage.
Wiring Example
L1
120V~ (ac)
L2
Earth Ground
V4TH-CAAA-AARR
Temperature
TC
DIP Switch
OFF
Orientation
4
5 (+)
5
6
6 (-)
Controller
fuse
18
17
16
15
14
13
8
7
fuse
18
16
8
7
DIN-a-mite
DA1C-1624-C000
process sensor limit sensor
high limit
mechanical
contactor
coil
L2L1
7 (-)
6 (+)
T1 T2
Heater
V4LH-DAAA-AARR
Limit
Controller
TC
DIP Switch
OFF
Orientation
4
5 (+)
5
6
6 (-)
fuses
18
18
17
16
16
15
14
13
8
8
7
7
120V~ (ac)
L1
L1 L2
1
(+)
TC+
(-)
TC-
1 CR-1
1
Series V4
V4TH - CAAA - AARR
Temperature Controller
DC+1
DC-1
(-)(+)
L1 L2
T1
T2
DIN-a-mite
DA1C-1624-C000
Heater
L1
1
Series V4
V4LH-DAAA-AARR
L2
Limit Controller
TC+
TC-
NO1
COM1
1
NC1
1CR
L2
2
2
2
2
Figure 7- System wiring example.
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