Application

Sequence of Operation
Open Loop (Mode 3)
26
Siemens Industry, Inc.
BACnet LCM-OAVS, Application 6754
140-1325
2015-07-07
The direction of actuation, Normally Open or Normally Closed is determined by
VENTRUI ACT.
Point
Flow
Volt
1
0
0.0
2
0
0.0
15
0
0.0
16
1200
10.0
Example 1 - Table with CFM End Limit – direct acting
It may not be necessary to enter 0 values since 0 values are initially in the table by
default when direct acting is selected.
Point
Flow
Volt
1
0
10.0
2
0
10.0
15
0
10.0
16
1200
0.0
Example 2 - Table with CFM End Limits – reverse acting
It may not be necessary to enter 10.0 values since 10.0 values are initially in the table
by default when reverse acting is selected.
If specific information about the voltage at low flow is known, that would be entered into
Point 1 which is reserved for information about low flow. See Examples 3 and 4 below.
Point
Flow
Volt
1
300
3.0
2
0
0.0
15
0
0.0
16
1200
10.0
Example 3 - Table with Voltage End Limits and Low Flow Value – direct acting
Point
Flow
Volt
1
300
7.0
2
0
10.0
3
0
10.0
15
0
10.0