Regin Corrigo E series - Chapter 3 Installation and Wiring

Corrigo E Heating manual, revision G Chapter 3 Installation and wiring 8
Chapter 3 Installation and wiring
3.1 Installation
Corrigo E can be mounted in a DIN-standard casing (minimum 9 modules), on a DIN-rail in a
cabinet or, using a suitable front-mounting kit, in a cabinet door or other control panel.
Ambient temperature: 0…50°C.
Ambient humidity. Max. 95 %RH, non-condensing.
3.2 Wiring
At the end of this chapter there are wiring diagrams showing the factory set configuration. We have
also included blank 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.
3.2.1 Supply voltage
24 V AC ±15%, 50/60 Hz. 6 VA
If the Corrigo E 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.
3.2.2 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 A-gnd terminal placed in the same terminal block as the input
being wired.
Analogue inputs can, depending on the configuration, be used for either PT1000 temperature
sensors or for 0…10 V DC analogue input signals, for example from a pressure transmitter.
Digital inputs
Digital inputs must refer to C+ on terminal 4. Digital inputs may only be wired to voltage-free
contacts. Any external voltage applied to a digital input may harm the unit.
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 analogue input must refer to an A-gnd terminal placed in the same
terminal block as the input being wired.
A universal inputs configured as an analogue input can, depending on the configuration, be used for
either PT1000 temperature sensors or for 0…10 V DC analogue input signals, for example from a
pressure transmitter.
A universal input configured as a digital input must refer to C+ on terminal 4. It may only be wired
to voltage-free contacts.