Instruction manual 1.0.0 rev1 en
GROW
BASE
31
Pin connection for EC fans
We offer suitable cables for the control of all common EC fans. We recommend to use a ready-
made cable. Fans according to the "RJEC" standard can be connected with a standard RJ45
cable.
If you still want to make your own wiring, you can find the pin configuration in the table at the
end of this section.
The current fan speed can only be displayed if the rpm signal is transmitted from the EC fan to
the controller. When connecting an EC fan with a jack (3.5/6.3mm) cable, this signal is not
transmitted. The display of the actual fan speed is for information only and has no influence on
the control or function.
Function / colour EC standard
Pin RJ45
+10V / red
3
0-10V / yellow
4
GND (0V) / blue
5
Pulse rpm / white
6
Table 1
What to do if there are problems?
Problem
Reason
Advise/ Workaround
No display
The mains plug is not
connected to a power
socket.
Connect the mains plug to a
power socket.
One or more power
outlets on the
controller are not
activated, even if the
display is illuminated.
The power output was
overloaded by a faulty or
unsuitable device.
The controller must be repaired.
Please contact customer service
or an authorized customer
service point.
The display is
frequently or
permanently showing
“Sensor error RHT”
No temperature and
humidity sensor is
connected or the sensor is
broken
Attach the temperature and
humidity sensor or the sensor
should be replaced
Pin 1
