Commissioning
Ref. no. 2103 REG ES
Page 10
of 44
3.2.2. Operational
instructions
During operation with open secondary sides, high voltages can occur on
current transformers. For this reason, the current transformers must always be
connected to the inputs E1, E2, E3, before reconnecting the primary circuit.
The connection of the current transformers to the inputs E1, E2 and E3 of the
energy detector 2103 REG ES prevents such surge voltages.
The connection of the secondary sides of the current transformers with the
input voltage means that the current transformers and their connections have
a 230 V voltage potential.
The secondary sides of the current transformers are therefore live parts and
must be covered, so that cannot be touched after installation.
4. Commissioning
DANGER!
Electric shock when live parts are touched. An electric shock can be
fatal.
Before working on the device, disconnect the connection cables and
cover live parts in the area.
Do not remove the housing cover! Dangerous voltages may still be
present even after removing the connections!
In transformer mode, the external current transformers are also to be
regarded as live on the secondary side.
After setting the physical address, loading the application by means of ETS and
connecting to the mains voltage, the energy counter is ready for operation.
The Power LED lights up continuously if the energy counter is in operation and the
energy saving mode is not active. Channel LEDs E1, E2 and E3 indicate the
measurement of an energy amount of 1/6400 kWh at the respective channel by
lighting up briefly.
If the Power saving mode is activated, the Power LED goes out and no energy is
counted.
