Application
Table Of Contents
- Overview
- Sequence of Operation
- Average Face Velocity Control
- AVS Calibration
- AO2 Flow Signal
- Control Loop - Damper Application
- Venturi Application
- Minimum Exhaust Mode
- Maximum Exhaust Mode
- Warning Limits
- Alarm Limits
- Alarm Output
- Horn Disable
- Sash Area Alarms
- Table Access Feature
- Emergency Mode
- Start-up/Decommission Mode
- Fail Mode
- Wiring Diagrams
- Point Database Application 6741
- Point Database Application 6742
Sequence of Operation
Wiring Diagrams
27
Siemens Industry, Inc. Application Note 140-1344
Restricted 2015-11-09
Wiring for AI4: Sash Sensor 2.
WARNING
The application cannot detect a broken wire to the analog input for the second sash.
An external sash aggregating device should be used to calculate the face area for all
fume hoods with more than one sash.
WARNING
Must use external 10 Vdc power supply.
Do not power AI from an onboard AO that is forced to 10 volts.
Wiring for AI with a 4 to 20 mA Sensor.