Chapter 5 - Features and Components
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MNL000626.doc
Revision 0
06/25/2019
Chemical Equipment
© Versum Materials US, LLC. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
Page 5
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Versum Materials Confidential
Figure 5-2: ChemGuard Electronic Enclosure
ITEM KEY
ITEM# ITEM
FUNCTION
1
Power Supply
Single or dual, redundant power supply with On-Off switch
and power indicator
2
Carrier board, AP1565
Main controller board with on-board microprocessor and
redundant ARS (automated restart) microprocessor
3
Tool IO board, AP1614
Cabinet IO Interface with Life Safety and Process Tools
4
Master Solenoid
Controls main pneumatic air supply to ChemGuard
®
cabinet. Closes to isolate pneumatic supply (hardware
interlock) in a life safety alarm condition
5
Solenoid Manifold
Main manifold for all pneumatic control valves in the
ChemGuard
®
cabinet
5.2.1 Emergency Manual Off (E-Stop)
The Emergency Manual Off (E-Stop) circuit provides for emergency shutdown of
ChemGuard® cabinet. The E-Stop switch is located on the upper door, immediately on the
lower right of the upper door. When pressed, it will cutoff the pneumatic air pressure to the
master solenoid and all valves will return to their normally de-activated condition.
