10
Addressing of the device at the bus
Pyranometer KNX PY
• Status: 22.07.2019 • Technical changes reserved. Errors reserved.
To remove it, the sensor can be simply pulled upwards out of the mount, against the
resistance of the fastening.
2.4. Notes on mounting and commissioning
Do not open the device if water (rain) might ingress: even some drops might damage
the electronic system.
After the bus voltage has been applied, the device will enter an initialisation phase last-
ing a few seconds. During this phase no information can be received or sent via the
bus.
3.
Addressing of the device at the bus
The device is supplied with the bus address 15.15.250. You can program another ad-
dress into the ETS by overwriting the 15.15.250 address or by teaching via the pro-
gramming key on the circuit board inside the housing.
4.
Maintenance
WARNING!
Risk of injury caused by components moved automatically!
The automatic control can start system components and place people in
danger.
•
Always isolate the device from the mains for servicing and cleaning.
The device must regularly be checked for dirt twice a year and cleaned if necessary. In
case of severe dirt, the sensor may not work properly anymore.
ATTENTION
The device can be damaged if water penetrates the housing.
•
Do not clean with high pressure cleaners or steam jets.
Fig. 14
Push the housing from above into the fas-
tened mount. The bumps on the mount must
snap into the rails in the housing.
