Niko 550-00001, Руководство по установке

Страница: 69 / 140

68
9. Electricity measuring modules
Follow the steps below to install the electricity measuring module:
1 Press the measuring module onto the DIN rail until it clicks into place.
2 Clip the current clamp around the conductor(s) of the switching circuit(s) of which the electricity consumption or
production is to be measured.
Several switching circuits on the same phase can be measured by one single current clamp. One current clamp
can be fitted around several different conductors.
3 Connect the wires of the current clamp to the +/- screw terminals of the measuring module. Observe the polarity of
the wires: connect the red wire to the + screw terminal and the black wire to the - screw terminal.
4 Connect the switching circuit(s) to the L/N screw terminals of the measuring module.
If you wish to measure the electricity consumption or production of several switching circuits on the same phase,
you simply need to connect one of the switching circuits to the module.
5 Connect the measuring module to the module before it. Slide the sliding contact of this module to the right until it
clicks into the measuring module. This will ensure that the bus and the power supply voltage are connected.
• Ensure that the installation is disconnected from the mains.
• Always measure voltage and current on the same phase.
• The cable of the current clamp supplied with the module is calibrated. Do not shorten or extend this cable.
The L side of the current clamp must point away from the main meter. The K side of the clamp must point towards
the main meter.
Remember to take into account the direction of the current.
Swapping of:
• the L/N screw terminals of the measuring module, or
• the +/- screw terminals of the current clamp, or
• the L side and K side of the current clamp
will not damage the measuring module nor the installation. However, doing so will reverse the sign of the value
measured, which means that the graphs displayed may contain errors.
Provided that everything is installed correctly, the electricity consumption will always be displayed as a positive
number while the amount of electricity generated (e.g. by solar panels) will always be displayed as a negative
number. You can verify this via the eco-display, the touchscreen or the energy software.