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Siemens RDU340… Basic Documentation CE1P3078en

Building Technologies Functions 11 July 2008

4.9 Error handling

When the room temperature is outside the measuring range, i.e. above 49 °C or

below 0 °C, the limiting temperatures flash, e.g. “0 °C” or “49 °C”.

If the temperature is below 0 °C and the controller is in heating mode and the

current setpoint is not set to “OFF”, then the control output Y10 or Y21 respectively

will issue actuator control commands to heating equipment.

For all other cases, the control output is de-energized. The controller resumes

Comfort mode after the temperature returns to within the measuring range.

4.10 DIP switches

Use the DIP switches on the inner side of the front panel to commission the basic

controller applications prior to snapping it to the base.

DIP switch number

1 2

Application

Single duct (factory setting) OFF n.a.

Single duct & electrical heater ON n.a.

DC 0…10 V output signal normal (factory setting) n.a. OFF

DC 0…10 V output signal inverted (see section 4.5) n.a. ON

Note: During startup, the controller reloads the control parameter factory settings

after each DIP switch settings change.

Temperature out of

range

1 2

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 29 30

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Siemens RDU340 Betriebsanleitung Seite 18