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39. USB connection
The device is equipped with a USB “device” interface which can be used to configure parameters or update the software.
To connect the controller to a PC via the USB connection, use a cable with Type A connector on one end and Mini B connector
on the other.
The connection can be made with the device powered up or switched off.
When the USB cable is connected to the device, the display switches off and the device is ready for configuration/update.
40.
Jumper configuration
JP1
JP3
Term.
ON
Term.
OFF
AI3
NTC10K
AI3
0...10V
JP3
=Term. ON
→
120 ohm termination resistor of the Modbus line INSERTED (
AHU-xMxSx1
model).
JP3
=OFF
→
120 ohm termination resistor of the Modbus line NOT INSERTED (
AHU-xMxSx1
model).
JP1
=position “1-2”
→
a third NTC10K remote sensor can be used for all models except for
AHU-3xxSx1
JP1
=position “3-2”
→
the third remote sensor is 0...10 V type