Additional power supply unit
Description
In a regular Niko Home Control installation the integrated power supply of the connected controller (light) ensures the 26 Vdc voltage on the bus, the modules and the control elements. An extra power supply is only necessary for large installations with many consumers. Several extra power supply modules can be connected in parallel in one single installation.
Overview
Sizing
Rule of thumb
The following rule of thumb can be applied to calculate the number of extra power supplies required: a maximum of 24 modules inside the electrical cabinet and a maximum of 70 controls (of which 20 with status LED) per power supply. The integrated power supply of the connected controller (light) counts as one power supply. Depending on the size and layout of your installation, you will need to install no, one or two extra power supplies.
This rule of thumb leaves a considerable margin for error.
Exact calculation
Each control and module consumes a specific amount of energy. This consumption is expressed in points (see tables on the following pages). The first 800 points are absorbed by the integrated power supply in the connected controller (light). An extra power supply is needed for every additional 800 points. Add the points of all the controls and modules of the installation and divide this sum by 800 and subtract 800 points to determine the number of power supplies required. A maximum of two power supplies can be used per installation.
Modules | |||
Ref. | Name | Points | Width |
550-00106 | Switching module (6x) | 5 | 4E |
550-00103 | Switching module (3x) | 5 | 2E |
550-00130 | Motor module | 5 | 4E |
550-00340 | Universal dimmer module (2 x 400W) | 5 | 4E |
550-00140 | Ventilation module | 5 | 2E |
550-00150 | Heating or cooling module | 5 | 4E |
550-00801 | Electricity measuring module (1 channel) | 20 | 2E |
550-00803 | Electricity measuring module (3 channels) | 20 | 4E |
550-00230 | Analogue sensor module | 10 | 2E |
550-00210 | Digital potential-free sensor module | 10 | 2E |
550-00240 | Analogue control module 0-10 V | 20 | 2E |
550-00241 | Analogue control module 1-10 V | 20 | 4U |
550-00250 | Pulse counter | 10 | 2E |
550-00505 | Nikobus interface | 40 | 2E |
550-00610 | RF interface Easywave | 20 | 2E |
Controls | ||
Ref. | Name | Points |
550-2021x + 1xx-55511 | Indoor motion detector | 10 |
550-20200 | Outdoor motion detector | 10 |
1xx-51001 | Single push button | 3 |
1xx-52001 | Single push button with LED | 4 |
1xx-51002 | Double push button | 3 |
1xx-52002 | Double push button with LED | 5 |
1xx-51004 | 4-fold push button | 3 |
1xx-52004 | 4-fold push button with LED | 5 |
1xx-51006 | 6-fold push button | 3 |
1xx-52006 | 6-fold push button with LED | 5 |
550-20000 | Push-button interface | 3 |
1xx-51033 | Single motor control | 3 |
1xx-52033 | Single motor control with LED | 5 |
1xx-51036 | Double motor control | 3 |
1xx-52036 | Double motor control with LED | 5 |
1xx-51043 | Single dimming control | 3 |
1xx-52043 | Single dimming control with LED | 5 |
1xx-51046 | Double dimming control | 3 |
1xx-52046 | Double dimming control with LED | 5 |
1xx-52054 | Ventilation control with LED | 5 |
550-1305x | Thermostat | 14 |
550-1304x | Mood control | 14 |
550-1308x | Eco-display | 14 |
Installation
Wiring diagram
Each extra power supply has a capacity of 10 W. Determine the exact number of extra power supplies required prior to commencing the installation process.
Follow the steps below to connect and mount a power supply module:
1 Click the extra power supply on a DIN rail.
2 Connect all four connection terminals (+, –, B1, B2) to the corresponding connection terminals of the connected controller, rail coupler or the power supply on the previous and next rails.
3 Each module is fitted with a sliding contact. Slide the sliding contact to the right until it clicks into the next module. This will ensure that the bus and the power supply voltage are connected.
4 Connect the L phase wire and the N neutral conductor to the L and N screw terminals respectively.
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.
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 defective. | |||
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. | ||
Technical data
- available power: 10 W
- input voltage: 230 Vac ± 10%, 50 Hz
- output voltage: 26 Vdc, 400 mA (SELV, safety extra-low voltage)
- dimensions: DIN 4U
- sliding contact to connect the module to the following module on the DIN rail
- 4 connection terminals at the top to connect the power supply with the rail coupler on the next DIN rail
- CE marked
- ambient temperature: 0 - 45 °C
- protected against short-circuit, overvoltage and overheating