Chapter 3 - Installation
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MNL000624.doc
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06/25/2019
Chemical Equipment
© Versum Materials US, LLC. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
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Versum Materials Confidential
3.9.3
System Status LEDs
System Status LEDs displaying ChemGuard® alarm conditions, CHEM ON and ARS
standby control signal are located to the right of the VGA display. The table below
describes these LEDs and their functions.
Table 3-13: Controller LEDs
3.9.4
Password Log-in
A password is required to access the main menu display. There are 4 levels of password
protection in the ChemGuard® controller.
Each password level allows a user more access to the features and operation of the
controller.
From the Main Menu, enter Config Menu ->
•
1
st
Security List > default
11234
•
2
nd
Security List > default
25678
•
3
rd
Security List > default
39999
LED
FUNCTION
SHUTDOWN
ALARM
This LED flashes red on Shutdown alarm.
Once acknowledged, the LED stops flashing
but remains red until it is reset.
FAULT ALARM
This LED flashes yellow on Fault alarm. Once
acknowledged, the LED stops flashing but
remains yellow until it is reset.
CHEM ON
This LED lights green when Chem On is
enabled and tool inputs are satisfied.
ARS
– Auto-
Restart
This blue LED lit and in steady state indicates
Auto-Restart option enabled and monitoring
system status. LED flashing blue indicates
Auto-Restart was activated.
POWER
This LED indicates that there is +5 VDC power
to the unit.
