18
3. Power supply
Error codes
When the module is functioning properly, the STATUS LED will light up in TEST mode only. If one or several errors occur,
the LED will blink to indicate the error code of the error with the highest priority. The table below provides an overview of
all error codes.
Technical data
• available power: 10 W
• input voltage: 230 Vac ± 10%
• output: 26 Vdc, 400 mA (SELV; safety extra-low voltage) - 10 W
• dimensions: DIN 4U
• sliding contact
• 4 connection terminals
• CE marking
• ambient temperature: 0 - 45°C
• short circuit, over-voltage, faulty connection and overheating protection
Press the TEST button on the controller to activate TEST mode.
LED
ACTION
ERROR
POSSIBLE CAUSES
STATUS LED
Blinks – one pulse per two
seconds.
Software error
Wrong software version.*
*Download the latest software version
from the Niko website to upgrade the
module.
Blinks – two pulses per two
seconds.
Overload or short
circuit
The bus is connected incorrectly.
The bus voltage is too low.
Bus overload. Check all points.
One of the bus members is defect.
Blinks – three pulses per two
seconds.
Overheating
The temperature inside the electrical
cabinet is too high.
MASTER LED
No error codes applicable.
Not applicable
BUS LED
No error codes applicable.
POWER LED
No error codes applicable.
