cf1d1824f0d2f5720ed5c069fd3a0a87
1
646
DESIGO™
Universal setpoint adjuster
for use with:
•
QAX 39.1
– devices of the ranges DESIGO RXC, RXB, RXL, and RXA (PPS2)
– DESIGO PX Automation stations
– devices with a PPS2 interface
For external setpoint adjustment
Application
The QAX39.1 setpoint adjuster is a continuously variable setpoint adjuster.
It can be connected to the controllers of the DESIGO RX or DESIGO PX range
equipped with a PPS2 interface.
The adjustment range can be defined in the application program.
Ordering
When ordering, please specify the quantity, product name and type code.
Example:
CA2N1646en_03
16 Oct 2009
30
type QAX39.1
setpoint adjusters
Building Technologies
Mechanical design
Multi-part plastic housing, comprising:
•
•
•
•
•
Electronic printed circuit board with potentiometer and 3 connection terminals
Mounting plate with 3 adjustable end-stops
Dial
Scale plate
Cover plate (transparent)
Address switch
It allows setting the address in cases where
several room units are connected to one
controller.
1646A01
78 9
AB
F01
4
23 56
CD E
Address switch inside the housing.
The setpoint adjuster is delivered with address 1.
Engineering notes
The device receives its power from the connected controller via the PPS2 interface
(extra low voltage). Only one room unit may be connected to a RX… room controller.
A maximum of 5 room units may be connected to a PXC… automation station (they are
identified by different settings of their address switch)
A twisted-pair cable is required for the connection to the controller (see the respective
installation guides). Screening is not required.
Disposal
The device is classified as waste electronic equipment in terms of the European
Directive 2002/96/EC (WEEE) and should not be disposed of as unsorted municipal
waste.
The relevant national legal rules are to be adhered to.
Regarding disposal, use the systems setup for collecting electronic waste.
Observe all local and applicable laws.
2/4
Siemens
Building Technologies
QAX39.1 – Universal setpoint adjuster
CA2N1646de_02
16 Oct 2009
Technical data
Caution
The unit is not protected against accidental connection to AC 230 V.
Power supply
SELV / PELV DC 12 ... 15 V
Operating voltage range
The unit receives its supply from the connected controller via a PPS2 interface
Power consumption (from controller)
Max. 0.10 VA
Operating data
Setpoint correction
Correction range (defined by controller)
Max. ± 12 K (basic setting ± 3K)
Ports
Type of port between controller and room unit
Baud rate
PPS2 (point-to-point interface, V 2
4.8 kBit/s
Cable connections
Connection terminals (screw terminals)
Stranded or solid conductors
0.8 … 2.5 mm2
See Installation guidelines:
DESIGO RXC: CA110334,
Single cable length controller – Room unit
DESIGO RXB & RXL: CM110381
Cable type
DESIGO RXA: CA2Z3884
DESIGO PX: CA110396
2-core, twisted pair, unscreened
Housing protection standard
Protection standard to EN 60529
IP 30
Protection class
Insulation protection class
III
Ambient conditions
Operation
Environmental conditions
Temperature
Humidity
Mechanical conditions
Transport
Environmental conditions
Temperature
Humidity
Mechanical conditions
IEC 60721
Class 3K5 to IEC 60721-3-3
0 ... 50 °C
< 85 %rh
Class 3M2
IEC 60721
Class 2K3 to IEC 60721-3-2
– 25 ... 65 °C
< 95 %rh
Class 2M2
Standards and directives
Product standard Automatic electronic controls
for household and similar use
EN 60730-1
Electromagnetic compatibility
Immunity (industrial & domestic)
Emissions (domestic)
compliance
Meets requirements of EMC directive
UL compliance
C-Tick conformity (EMC)
EN 60730-1
EN 60730-1
2004/108/EC
UL916
AS/NZS 61000-6-3
Environmental compatibility
The product environmental declaration
CA2E1646 contains data on materials composition, packaging, environmental benefit,
disposal
Dimensions
See “Dimensions”
Color
Scale plate
Dial
White
RAL 9003 (white)
Weight
Excluding packaging
0.06 kg
ISO 14001 (Environment)
ISO 9001 (Quality)
3/4
Siemens
Building Technologies
QAX39.1 – Universal setpoint adjuster
CA2N1646de_02
16 Oct 2009
Mounting instructions
The QAX39.1 setpoint adjuster can be unit mounted, or mounted on control panels or
control panel doors, or flush-mounting boxes (on cover plate).
00143 A
!
STOP
Not every flush mounting box is suitable for the mounting of a setpoint adjuster!
Note!
Connection terminals
00112
1
PPS 2
2
3
STOP
On all other PPS2 room units, the cable is connected to terminals 1 and 2.
Here, however, it must be connected to terminals 1 and 3!
Note!
Dimensions
All dimensions in mm
48
70197 B
Drilling diagram
ø4
14
ø7
48
14
ø4
34
70197 C
15
4/4
 2000 - 2009 Siemens Switzerland Ltd.
Siemens
Building Technologies
QAX39.1 – Universal setpoint adjuster
Subject to change
CA2N1646de_02
16 Oct 2009
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