Siemens bacnet 125-5037 用户手册

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页码 48
 
 
Siemens BACnet VAV Actuator Owner’s Manual 
Siemens Building Technologies, Inc. 
 
21 
Descriptor Address
Application Description 
RM STPT MAX 
12 
All except 2597 
The maximum temperature setpoint in degrees that 
the controller can use from the setpoint dial. This 
overrides any temperature setpoint from the 
setpoint dial that falls above this maximum. 
RM STPT DIAL 
{13}
All 
The temperature setpoint in degrees from the room 
temperature sensor (not available on all 
temperature sensor models). This setpoint will be 
used for control in day mode (heating or cooling) 
when enabled by STPT DIAL. 
STPT DIAL 
14 
All except 2597  
YES indicates that there is a room setpoint dial on 
the room temperature sensor and it should be used 
as the temperature setpoint for control in 
day/occupied mode. NO indicates that the 
appropriate preset setpoint will be used as the 
temperature setpoint for control in day/occupied 
heating or cooling mode. Valid input: YES or NO. 
AUX TEMP 
{15} 
All except 2561  
Actual reading from a 10K 
Ω thermistor connected 
to the controller's Al 3 input. When a thermistor is 
connected at Al 3, DI 3 is not available. See DI 3. 
SUPPLY TEMP 
{15} 
2561 
Actual reading from a 10K 
Ω thermistor connected 
to the controller's Al 3 input. The controller uses this 
value to determine whether it is in heating or 
cooling mode. 
FLOW START 
16 
All except  
2560, 2561,  2597 
Determines how the damper modulation will be 
sequenced while in heating mode. When HTG 
LOOPOUT is above this value, then FLOW STPT 
starts to increase. 
FLOW END 
17 
All except  
2560, 2561,  2597 
Determines how the damper modulation will be 
sequenced while in heating mode. When HTG 
LOOPOUT is below this value, then FLOW STPT 
starts to decrease. 
WALL SWITCH 
18 
All 
YES indicates that the controller is to monitor the 
status of a wall switch that is connected to DI 2. NO 
indicates that the controller will not monitor the 
status of a wall switch, even if one is connected. 
Valid input: YES or NO. 
DI OVRD SW 
{19}
All 
Actual indication of the status of the override switch 
(not physically available on all temperature sensor 
models) at the room temperature sensor. ON 
indicates that the switch is being pressed. OFF 
indicates that the switch is released.  
Valid input: ON or OFF. 
OVRD TIME 
20 
All except 
2597  
The amount of time in hours that the controller will 
operate in day/occupied mode when the override 
switch is pressed while the controller is in 
night/unoccupied mode.