Delta Controls
Jumpers
10K
5V
10V
INPUT SIGNAL TYPE
The input type is selected by placing the jumper in the correct location on
the Input Type Selector Block. The diagram to the left shows the factory
default selection of 10 KΩ.
10K For 10 KΩ Thermistor temperature sensors, as well as Binary
or Dry Contact inputs.
5V For sensors and other field devices that use a 5 VDC signal.
10V For sensors and other field devices that use a 10 VDC signal.
INTERNAL
EXTERNAL
BINARY OUTPUT POWER SOURCE
The binary triac outputs can be selected to use either an internal or
external power source by placing the two jumpers in the correct locations.
The diagram to the left shows the factory default selection of Internal
Power Source.
Internal 24 VAC Power is provided internally from within the board
right to the output terminals. No external transformer is
required. The associated triac outputs are “hot” contacts. Note
that the power supply should be sized appropriately to handle
the additional loading.
External Power needs to be provided externally to the board from a
nearby transformer appropriately connected to the output wiring.
The associated triac outputs are not “hot” contacts, except by
means of the external transformer.
NOTE: Triacs are solid-state components that are only appropriate for
switching 24 VAC. They cannot be used to switch DC voltage. They also
have a small leakage current and may not be appropriate for certain “dry
contact” applications.
INTERNAL
EXTERNAL
INPUT CONNECTION SELECTOR – DNT-T103X MODELS ONLY
This jumper is used to select whether the internal Thermistor sensor or a
remotely located Thermistor is connected to IP1. The diagram to the left
shows the factory default selection of the Internal 10 KΩ Thermistor.
External For connecting a remotely located 10 KΩ Thermistor
temperature sensor to IP1, which is wired to the connection
terminals provided.
Internal For connecting the internal 10 KΩ Thermistor temperature
sensor to IP1.
Document Edition 1.9
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