MNL000423.doc
Revision 01
09/18/2018
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
Page
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Figure 5-7b Model 300 Power Supply Module Back Panel
5.3.1
DDC Inputs/Outputs
–
Temperature/Level and
“
Any
”
Alarm
These three alarms can be configured for relay or voltage output from the keypad. For
positive logic, output is high (+5 VDC) when no alarm condition exists, and low (<1
VDC) if an alarm condition exists. Inverted, voltage logic will result when J5- Pin 2 (25
pin DB connector) is shorted to ground.
5.3.2
Remote Temperature Set Point
This input allows a 0 to +5 VDC to be input for remote control of temperature set point
with linear correspondence of 0 to 110 °C. Minimum/maximum bubbler temperature
will depend on VaporGuard® model type but corresponding analog input for all
models will remain the same scale.
In other words, +1 VDC input will adjust the set point to 20°C. The limits of the
system will clip the set point, an analog input less than 0.5 VDC will result in a set
point of 10°C. Likewise, an analog input greater than 1.1 VDC for the TransLC™
version will only result in a 22°C set point.
