Regin Corrigo C Series, Руководство пользователя, Страница: 17 / 56

18
Manual C
ORRIGO
C-
SERIES
2000.09
DO Digital outputs
C
ORRIGO
has 7 digital outputs DO1...DO7.
DO7, alarm output is a voltage free closing relay contact. 1 A, 24 V AC/DC.
The outputs DO1...DO6 are triac controlled, 0.5 A, 24 V AC. Short term 1 A.
The triac outputs are paired to common supply terminals for 24 V AC.
See figure in the margin.
For handling higher voltages or currents, use relay modules RM6-24/D or
RM6H-24/D that have been developed for this purpose.
Some of the outputs have alternative functions depending on model and con-
figuration. For example, this means that, in C10 and C30, DX cooling cannot be
combined with control of two-speed fans.
DO1 Start supply-air fan (High speed for 2-speed fan in C10 and C30).
DO2 Start exhaust-air fan (High speed for 2-speed fan in C10 and C30).
DO3 Control of circulation pump or electric heating interlock.
Must be wired when water heater is used. Stopped pump will force the
C
ORRIGO
to shut-down mode.
DO3 is normally used for control of the circulation pump. When using electric
heating, this is not used. Instead it can often be useful with an output for
electric heating interlock, for example when a step-controller is used to
control the heater.
Step-controllers often have step-up/step-down time delay functions.
This can lead to heating output during the cool-down period or even after the
supply air fan has been shut down which will trip the heater high-limit
thermostat.
By wiring the heating relays via DO3 the heating output will be shut down as
soon as C
ORRIGO
switches from running mode to shutdown mode.
When C
ORRIGO
is configured for electric heating DO3 will be active during
normal running mode and switched off in shut-down mode i.e. even during
the cool-down period.
DO4 Control of chiller 1 (DX1) or
Start supply-air fan, low speed for 2-speed control in C10 and C30.
DO5 Control of chiller 2 (DX2) or
Start exhaust-air fan, low speed for 2-speed control in C10 and C30.
DO6 External frost protection interlock or fire damper exercising.
Function see page 30, Function DI6/DO6.
DO7 Alarm output relay
5
6
7
24 V AC in
DO5 out
DO6 out