Siemens QAX32.1 User Manual

CA2N1641
en_03
2015
-12-23
Building Technologies
1
641
Desigo
™ RX
Room unit with PPS2
interface
QAX32.1
for use with:
– devices of the ranges Desigo RXC, RXB, RXL, and RXA (PPS2)
– Desigo PX Automation stations
1)
– devices with a PPS2 interface
• Room temperature measurement
• Room temperature setpoint adjuster
• Control mode selector switch (
/ Auto)
• PPS2 interface to controller
• Socket for commissioning and service tool or service terminal
Use
The room unit is used in rooms controlled by an individual room control system, to
measure the room temperature and for operation of a room controller.
It can also be used in conjunction with a Desigo PXC… automation station
1)
.
The room unit incorporates a socket for a commissioning and service tool or service
terminal. This tool socket provides access via the PPS2 interface or via a bus system
(e.g. L
ONWORKS® bus) to the connected individual room controller.
1) If room units QAX32.1, QAX33.1, QAX34.1 or QAX84.1 are used in conjunction with a PXC
automation station, the room unit will show the request of the user and not the effective state.

Siemens QAX32.1 Specifications

General

Power Supply	24 V AC/DC
Display	LCD
Operating Voltage	24 V AC/DC
Protection Class	IP20
Control algorithm	PID
Output Type	Relay, 0...10 V
Analog Outputs	DC 0...10 V
Ambient Temperature	0…50 °C

Summary

Desigo RX Room Unit with PPS2 Interface

Use

Describes the application of the room unit in controlled rooms and with automation stations.

Mechanical Design

Operator Controls and Indication

Explains the dial for setpoint adjustment and LEDs for control mode indication.

Rocker Switch for Mode Selection

Describes how to select control mode (Auto/Comfort) using the rocker switch.

Mounting

Commissioning Notes

Response on Start-up

Details the communication re-establishment and device readiness routine after power connection or reset.

Technical Data

Supply Voltage

Function Data

Details temperature sensor, measuring range, response time, and accuracy.

Interfaces

Cable Connections

Connection Terminals

Terminal Layout

Tool Socket

Connection Diagram (Example: RXC)