Table of Contents
Advertisement
#
6
K NX
R
Fault
information
K NX
7
R
X1, X2
(Digital)
K NX
8
R
X1, X2
(Temp.)
Siemens
Building Technologies
Function of
Description
input
Fault
Digital input to signal an external fault (example: dirty air
filter).
If the input is active, "ALx" is displayed and a fault is
sent on the bus. See also section 3.10.11.
(Alarm x, with x = 1 for X1, x = 2 for X2).
Note: Fault displays have no impact on the thermostat's
operation. They merely represent a visual signal.
Monitor input
Digital input to monitor the state of an external switch via
(Digital)
bus.
Monitor input
Sensor input to monitor the state of an external sensor
(Temperature)
(e.g. QAH11.1) via bus.
·
Operational action can be changed between normally open (NO) and normally
closed (NC) via parameter P39, P41.
·
Each input X1, X2 must be configured with a different function (1...5).
Exception: 1 or 2 inputs can be configured as fault (6) or monitor input (7,8)
·
X1 is factory-set to "Operating mode switchover" (3), X2 to "External sensor"
(1)
For more detailed information, refer to section 3.4.
RDU341 Basic Documentation
Type
X1/X2
DI
DI
AI
35 / 68
CE1P3172en
2015-06-08
Advertisement
Table of Contents
