SET 1501 H - Page 21

21
Installation: Electrical connection
There is an option for connecting an external alarm, which makes it possible to see, when the
dehumidier is operating normally or has an error. In order to use this option you must create
your own external electrical circuit and connect it to the run/fail terminal on the main PCB
(see page 32).
This illustration is an example of how the run/fail circuit could be used.
RUN
FAIL
12
3
4
VDC
(Max. 50V, 500mA)
GND
GND
VDC (Max. 50V, 500mA)
RUN
FAIL
12
3
4
VDC (Max. 50V, 500mA)
GND
GND
VDC (Max. 50V, 500mA)
NORMAL MODE ERROR MODE
Operational Mode
RUN FAIL
Error Mode
RUN FAIL
Fig. 8
Alarm
Run/ fail
connection
(Optional)
en