~ 6 ~
PEF-320
NOVATEK-ELECTRO
QF
– circuit breaker 16 А.
Fig. 2
–
Connection Diagram of
PEF-320
4.1.2.2.
Set the device trip thresholds with the help of knobs: Umax, Umin,
Тr and Тon.
ATTENTION! Do not use excessive force when performing setting operations
.
Umax
– is the maximum voltage threshold.
Umin
– is the minimum voltage threshold.
Тon
– is the time for the automatic reset of the load after the restoration of the voltage parameters at one of
the phases, as well as the time of the load initial switching on after energizing the PEF-320 device.
For refrigerators, air conditioners and other compressor equipment,
Ton
is recommended to be set within
180
– 600 s, for other devices - according to their operating instructions.
Тr
– is the time of return to the priority phase.
After the setting the threshold values, the device is ready for operation with the load.
It is allowed to change the thresholds
values Umax, Umin, Tr and Ton during the device operation
with observing the safety regulations.
4.2.
Intended use
After connection to power supply and setting the parameters, the PEF-320 is ready for operation.
The glow of one of the LED indicators
L1, L2, L3
on the front panel shows the phase to which the load is
connected. If the load is disconnected from all three phases, the
ALARM
indicator will light up.
If the voltage for all three phases does not correspond to the set thresholds, the load will be switched off
and the
ALARM
indicator will light up
.
In the case when several PEF-320 devices are used in the line, to avoid the phase overloading, it is
recommended to select different phases as the priority one for different groups of consumers.
