Delta Controls
Document Edition 4.2
Page 21 of 43
CONTROL DIAGRAM
The following diagram displays occupied mode and helps illustrate the relationship between the
internal software loop controller and various objects, including outputs.
CONTROL APPLICATIONS
1.
NONE (or MUX) – [
Application
(AV12) = 0]
Function: No local control strategy, allowing the outputs (via AV1 to AV3) to be directly controlled
from a remote device.
Triac outputs may be configured as Binary (which are not delayed; their values are transferred
immediately upon being received), PWM, and Tri-state (on Outputs 1 & 2).
Analog outputs may be configured for 0-10v actuators (DNT-T221 only).
Outputs configured as Pulse Width Modulation require that their “Low” and “High” variables be
appropriately configured for the particular type of device the outputs are connected to. Default
values of 59 and 293 are suitable for Belimo PWM actuators (representing 0.59 and 2.93 seconds
respectively).
Controller &
Sequencing
Input (AI1)
Setpoint (AV6)
Binary (Dir or Rev)
PWM (Dir or Rev)
Analog (Dir or Rev)
Analog VAV Flow Damper
Tri-State Actuator
Tri-State VAV Flow Damper
Heating Stage 1 (H1)
Heating Stage 2 (H2)
Heating Stage 3 (H3)
Cooling Stage 1 (C1)
Cooling Stage 2 (C2)
Cooling Stage 3 (C3)
Constant Fan Operation (C)
Intermittent Fan Operation (I)
Manual Fan Operation (M)
Output 1
Output 2
Binary (Dir or Rev)
PWM (Dir or Rev)
Time Proportioned (D or R)
Analog (Dir or Rev)
Tri-State Actuator
Tri-State VAV Flow Damper
Output 3
Binary (Dir or Rev)
PWM (Dir or Rev)
Time Proportioned (D or R)
Cooling
Heating
Fan
Algorithm Mode
(AV13)
BACstat Buttons
(or remote
command via
GCL or OWS)
Notes:
1.
indicates the output ty pe is only applicable f or the DNT-T103.
2.
indicates the output ty pe is only applicable f or the DNT-T221.
3. An analog output ty pe f or outputs 1 & 2 on a DNT-T221 when HPU has been
selected prov ides a 0
or 10v signal - it is not a 0 to 10v signal nor a dry contact.
4. The output f unctions and ty pes that are av ailable are dependent on the control
application selected and what was selected f or the prev ious output.
5. This is not a comprehensiv e diagram and does not include all output f unctions.
Ref er to
Output Functions and Types
later in this document.
Binary Fan (On/Off)
