Sauter flexotron®800
ventilation
Installation and wiring
P100012082
15
3.2
Wiring
At the end of this section are terminal assignment plans that show the available factory
setting configurations. There are also empty wiring diagrams. Since the function of most
of the inputs and outputs depends on the programming of the unit the final wiring
diagram cannot be filled in until the installer has decided how to use the inputs/outputs.
It is important to make sure that the wiring is correctly done and in accordance with the
instructions given in this manual.
3.3
Supply voltage
24 V ~±15%, 50…60 Hz or 20…36 V =
If the controller flexotron®800 and the actuators connected to it share the same
transformer it is essential that the same transformer-pole is used as reference for all
the equipment. Failure to do so will prevent the equipment from functioning as
intended and may also lead to damages.
3.3.1
Inputs and outputs
The list of input and output functions in section 3.2.3 is a handy instrument to help you
keep track of which inputs and outputs you will need to configure.
Analogue inputs
Analogue inputs must refer to an protective earth terminal placed in the same terminal
block as the input being wired.
Analogue inputs can, depending on the configuration, be used for either Ni1000
temperature sensors or for 0…10 V DC analogue input signals, for example from a
pressure transmitter.
Digital inputs
Digital inputs must refer on te24 V. Digital inputs may only be wired to voltage-
free contacts. Any external voltage applied to a digital input may harm the unit. The
input signal can be set to either NO or NC.
Universal inputs
A universal input can be configured to act as either an analogue input or as a digital
input.
A universal input configured as an analogue input can, depending on the configuration,
be used for eithe
r Ni1000 temperature sensors or for 0…10 V DC analogue input
signals, for example from a pressure transmitter.
Universal inputs configured as an analogue input must refer to an protective earth
terminal placed in the same terminal block as the input being wired.
A universal input configured as a digital input must, just like other digital inputs refer to
te24V. It may only be wired to voltage-free contacts.
