Siemens RDG160KN Manuel de service télécharger pdf (Page 59)

Function of

input

Description

Type

X1/X2

Type

KNX

Fault

information

6 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 3.11.8.

(Alarm x, with x = 1 for X1, x = 2 for X2, x = 3 for D1).

Note: Fault displays have no impact on the

thermostat's operation. They merely represent a

visual signal.

DI DI

KNX

D1, X1, X2

(Digital)

7 Monitor input

(Digital)

Digital input to monitor the state of an external switch

via bus.

DI DI

KNX

X1, X2

(Temp.)

8 Monitor input

(Temperature)

Sensor input to monitor the state of an external

sensor (e.g. QAH11.1) via bus.

AI --

KNX

X1, X2

(Temp.)

9 Supply air

temperature

limitation

(RDG160KN

only)

Sensor input to acquire the supply air temperature.

The thermostat controls the room temperature via the

built-in sensor. The control output (DC 0...10 V) is

reduced if the supply air temperature exceeds the min

/ max limits (P63, P64).

AI --

• Operational action can be changed between normally open (NO) and normally

closed (NC) via parameter P39, P41 (or P43 if it is a digital input).

• Each input X1, X2 or D1 must be configured with a different function (1…5).

Exception: 1, 2 or 3 inputs can be configured as fault (6) or monitor input (7,8).

• X1 is factory-set to "External sensor" (1), X2 to "Not used" (0), and D1 to

"Operating mode switchover" (3).

For more detailed information, refer to section 3.4 "Applications".

• For inputs X1, X2, or D1, one physical switch can be used for up to 20

thermostats (parallel connection).

Caution! DO NOT mix X1 / X2 (mains potential on RDG100KN) and D1.

• For sensors on inputs X1, X2, or D1, the cable length is max. 80 m.

Installation note:

59 / 102

Siemens RDG100KN, RDG160KN Basic documentation CE1P3191en

Building Technologies Functions 2014-05-23

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Siemens RDG160KN Manuel de service Page 59

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