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Siemens BACNET 125-5037 Owner's Manual page 36

Building technologies bacnet vav actuator
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Point Database
Descriptor
Address
HTG l GAIN
HTG D GAIN
CHK STATUS
FLOW P GAIN
FLOW l GAIN
FLOW D GAIN
FLOW BIAS
FLOW
CTL FLOW MIN
CTL FLOW MAX
CTL TEMP
CLG LOOPOUT
HTG LOOPOUT
AVG HEAT OUT
STAGE MAX
STAGE FAN
26
1
Application
68
All except 2560,
2597
69
All except 2560,
2597
70
All
71
All except 2597
72
All except 2597
73
All except 2597
74
All except 2597
2
{75}
All except 2597
2
{76}
All except 2597
{77}
All except 2597
{78}
All except 2597
{79}
All except 2597
{80}
All except 2560,
2597
2
{81}
2562, 2564, 2566
82
2562, 2564, 2566
83
2565, 2567
Description
The integral gain value for the heating temperature
control loop.
The derivative gain value for the heating
temperature control loop.
Displays the results of CHK OUT.
The proportional gain value for the flow control
loop.
The integral gain value for the flow control loop.
The derivative gain value for the flow control loop.
The biasing of the flow control loop.
Indicates the actual amount of air currently passing
the air velocity sensor. The value is calculated as a
percentage based on where the value of AIR
VOLUME is in the range between 0 and CTL FLOW
MAX.
The active minimum flow used as a limit for the flow
control loop. This value is the same as CLG FLOW
MIN if the controller is in cooling mode, or is the
same as HTG FLOW MIN if the controller is in
heating mode, unless it is overridden.
The active maximum flow used as a limit for the flow
control loop. This value is the same as CLG FLOW
MAX if the controller is in cooling mode, or is the
same as HTG FLOW MAX if the controller is in
heating mode unless, it is overridden.
The temperature used as input for the temperature
control loops. This value is the same as the value in
ROOM TEMP and RM TEMP OFFSET unless it is
overridden.
The cooling temperature control loop output value in
percent.
The heating temperature control loop output value
in percent.
This point is used to determine what stages of
electric heat are used for a given loop output value.
The ranges for the value are determined by the
number of stages used: 0 to 100 for 1 stage of
electric heat, 0 to 200 for 2 stages of electric heat,
and 0 to 300 for 3 stages of electric heat.
With electric heat, this value is equal to: HTG
LOOPOUT × STAGE COUNT.
The value, in percent, which the heating loop must
exceed for the electric heat to be ON for the full duty
cycle (STAGE TIME).
The valve must be opened greater than this value
before the fan will turn ON.
Siemens Building Technologies, Inc.

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