Watlow SDAC - Manual

WATLOW SDAC User’s Guide 1
Introduction
The Serial Digital-to-Analog Converter (Serial DAC) is
an optional module for Watlow Anafaze Controllers. It
allows the controller to output precision analog volt-
ages or currents. The Serial DAC is typically used for
precision open-loop control, motor or belt speed con-
trol, or phase-angle fired control.
This manual contains installation instructions, config-
uration information, and specifications.
Features
• Electrically isolated
• 0.003% resolution and linearity; factory calibrated
to 0.05% accuracy for voltage outputs and 0.5%
accuracy for current outputs. The Serial DAC can
also be recalibrated to 0.1% accuracy on current
output.
• User-selectable voltage or current output.
• Controller setup menus allow zero- and full-scale
value adjustments within the Serial DAC’s 0 to
10V
Î (dc) and 0 to 20 mA Î (dc) output ranges.
Installing the Serial DAC
You will need the following tools:
• Power drill with 4-mm (0.15-in) bits
• Screwdriver
• Four screws up to size #6 (up to 3.8 mm). Choose
screws appropriate for your panel material.
• Wire strippers
Measur
ement
& Contr
ement
&
Contr
ol
SERIAL D
AC
+5V IN
CO
M IN
CLK
IN
DA
TA
IN
FLASHING
=RUNNING
+ OUT
- OUT
P IN :
1
2
3 4
5 6
O U TP
U T SE
LE
C T
C U R REN
T
V O
LT A G E
{
{
Po
we
r Input:
5Vdc
, 300mA max.
Vo
ltage Output:
10Vdc
, 10mA max.
Cu
rre
nt O
utp
ut: 1
0V
dc,
20
mA
m
ax.
US
E C
OP
PE
R C
ON
DU
CT
OR
S O
NLY
Watlow Controls
1241 Bundy Blvd., Winona, MN 55987
Customer Service
Phone: 1-800-414-4299
Fax: 1-800-445-8992
Technical Support
Phone: (507) 494-5656
Fax: (507) 452-4507
E-mail: [email protected]
Part No. 0600-2185-2000 Rev. 4.0
December 2004
SDAC User’s Guide
To install the SDAC module:
1. Choose a wall or panel to install the Serial DAC.
For best results choose a location near the con-
troller and in an area free from dust, excessive
heat and moisture and unauthorized personnel.
2. Drill four holes for screw mounting. See Figure 1
on page 2 for mounting hole dimensions and place-
ment.
3. Place the Serial DAC in its mounting location so
that the screw holes in the Serial DAC line up
with the holes you have drilled. Insert the screws
in the holes and tighten.
4. Shut the system power off and wire the Serial
DAC to the controller and final control element.
Warranty
The Serial DAC is warranted to be free of defects in
material and workmanship for 36 months after deliv-
ery to the first purchaser for use, providing that the
units have not been misapplied. Since Watlow has no
control over their use, and sometimes misuse, we can-
not guarantee against failure. Watlow’s obligations
hereunder, at Watlow’s option, are limited to replace-
ment, repair, or refund of purchase price, and parts
which upon examination prove to be defective within
the warranty period specified. This warranty does not
apply to damage resulting from transportation, alter-
ation, misuse, abuse, or improper fusing.