Trane Tracer AH540, Руководство по диагностике для владельца установки

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CNT-SVX05A-EN
11
Binary inputs
The default configuration for each binary input (including normally open/closed)
of the Tracer™ AH.540 is set at the factory. For field-installed AH.541 controllers,
the configuration of the binary inputs must be set with Trane Rover
™
service
software.
Configure any binary input not in use (an input to which no device is physically
connected) as Not Used.
The Tracer AH.540 controller has six available binary inputs. The binary inputs
are connected to the Tracer AH.540 terminal board on inputs IN 7 through IN 12.
Normally these inputs are factory-configured for the following functions.
Binary inputs
• IN 7: Low temperature detection (freezestat)
• IN 8: Run/stop
• IN 9: Occupancy or generic
• IN 10: Supply fan status
• IN 11: Filter status
• IN 12: Exhaust fan status
Configure IN 9 either as Occupancy or as a Generic binary input. When
configured as a generic binary input, IN 9 does not affect controller operation.
Table 8 — Table Binary input controller operation
Note 1: During low temp detect, run/stop, and supply fan status diagnostics, the controller disables all normal unit
operation of the fans, valves, and dampers.
Note 2: The table below shows the controller’s response to low temp detect, run/stop, supply fan status, and exhaust
fan status latching diagnostics.
Table 9 — Control response to binary input latching diagnostics
Note 1: When steam is the source of heat, the heat output is cycled open and closed when the controller is shut down
on a Low Temp Detect latching diagnostic. See Steam valve cycling in the Sequence of operation section for further
details.
Binary
input Description Configuration Contact closed Contact open
IN 7 Low temp detect
(Note 1) Normally closed Normal Latching diagnostic
(Note 2)
IN 8 Run/stop
(Note 1) Normally open Latching diagnostic
(Note 2) Normal
IN 9 Occupancy Normally open Unoccupied Occupied
IN 10 Supply fan status
(Note 1) Normally open Normal Latching diagnostic
(Note 2)
IN 11 Filter status Normally open Dirty Clean
IN 12 Exhaust fan status Normally closed Exhaust fan
diagnostic (Note 2)
Normal
Binary
input Latching
diagnostic Supply
fan Cool
output Face and
bypass
damper Heat
output Outdoor air
damper Exhaust
fan
IN 7 Low temp detect Off Open Face Open
(Note 1) Closed Off
IN 8 Run/stop Off Closed Bypass Closed Closed Off
IN 10 Supply fan status Off Closed Bypass Closed Closed Off
IN 12 Exhaust fan status Normal
Operation
Normal
Operation Normal
Operation Normal
Operation Normal
Operation Off