Watlow CLS200 - Manual (Page 60)

Chapter 2: Installation CLS200 Series User’s Guide
44 Watlow Anafaze Doc.# 0600-3050-2000
Figure 2.29 Dual DAC with Voltage Output
Wiring the Serial DAC
The Serial DAC provides a robust analog output signal.
The module converts the proprietary Serial DAC signal
from the controller’s open collector output in conjunction
with the clock signal to an analog current or voltage. See
Figure 2.30 for wiring. The Serial DAC is user-configurable
for voltage or current output through firmware configura-
tion. See Configuring Serial DAC Outputs on page 188.
The Serial DAC optically isolates the controller’s control
output from the load. When a single Serial DAC is used, it
may be powered by the 5V
Î (dc) found on the TB50, or by
an external supply referenced to the controller's power sup-
ply. When using multiple Serial DACs, the controller can-
not provide sufficient current; use the 5V
Î (dc) output from
the CLS200 power supply
TB50 or TB18
PID Loop Output
Dual DAC
V Î (dc) Load
+
-
+5V Î (dc) 1 +5V Î (dc) CTRL 1
2
3
4
5
6
DZC CTRL PID Output
+12/24V
Î (dc) Exter-
nal Power Supply
+V Î (dc) Load Conn.
-mA Î (dc) Load Conn.
-External Power
Supply/ V Î (dc) Load
Conn.
+ -
12 to 24V Î (dc) Power Supply