EPA PECON+, Instruction Manual

Page: 47 / 52

Startup / operation
PE CON+ ® www.epa.de 45
of
48
8
Startup / operation
8.1 Switching on
After connecting the supply voltage, the presence of the protective earth (PE) is determined
by measurement. If the required minimum resistance of the protective earth connection is
present, this is indicated by the green LED "OK" and the release is actuated.
Depending on the product version (see section "Function"), a possible swap of the phase
and neutral conductor is also checked. If the phase and neutral are reversed or if the
protective earth is missing, this is signalled via the "Alarm" LED (depending on the product
version) and no release is issued via the relay and/or a signalling contact is actuated.
If the voltage difference of the three phases L1, L2, L3 is >10% in case of the
PE CON+
®
IT ,
no release is issued via the internal relay and a fault is signalled via the red "Alarm" LED.
8.2 Shutdown
To de-energise the device, the voltage supply on the L and N terminals (for PE CON+ ® ) and
L1, L2 and L3 (for PE CON+ ® IT ) must be disconnected on all poles.
8.3 LED display elements
The PE CON+
®
has three coloured LEDs as display elements:
PE CON+ ® and PE CON+ ® S2 / S4 / NVT-1 / NVT-2
Display Status
Red LED Protective earth connection interrupted
Yellow LED Phase and neutral reversed
Green LED Fault-free operation
PE
CON+
® S1
/
S3
/
NVF-1
/
NVF-2
Display Status
Red LED Protective earth connection interrupted / phase and neutral conductor
swapped
Yellow LED Phase and neutral reversed
Green LED Fault-free operation
PE
CON+ ® IT
Display Status
Red LED Protective earth connection interrupted / mains phases fault
Yellow LED Network phases fault
Green LED Fault-free operation