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NOVATEK-ELECTRO
RNPP-311M
Green LED
indicators LINE
Indication status
LINE
Red LED ALARM
Indication status
ALARM
Functional state
of RNPP-311M
All LEDs are
permanently
ON
Luminescence
is absent
Voltage parameters
on each phase are
normal.
Blinking (reverse
reading of the
autoreclosing time
delay
Blinking of any (all)
LEDs
Continuous
luminescence
Voltage rise on the
corresponding phase
is detected
Any (all) LEDs are
OFF
Continuous
luminescence
1) Voltage level on any
(all) of phases is lower
than the user adjusted
value;
2) Voltage level on
any (all) of phases is
lower than 100V or the
phase loss is detected;
Blinking of two
LEDs alternately. At
first Middle and
Right LEDs turn
ON
and then Middle and
Left turn
ON
Continuous
luminescence
Phase imbalance
alarm situation.
Left, Middle and
then Right LEDs turn
ON
one by one
Continuous
luminescence
Wrong phase
sequence and phase
coincidence alarm
situation
NOTE -
If several alarm situations happen concurrently then they are indicated according the following
priority:
1
– Phase loss or voltage level on any of phases decrease lower than 100V (the highest precedence);
2
– Wrong phase Sequence;
3
–
U
min
and
U
max
;
4
– Phase imbalance alarm.
If the voltage is present only on one of phases and the external power supply of 24 V is absent then
RNPP-311M saves
3.3. Adjustments and settings
ATTENTION
! Not to break or turn the knobs, please, don't make excessive efforts when performing
adjusting operations.
On the front panel of the RNPP-311M there are 3 adjustment knobs to set the desired values and 5
switches to select necessary modes of operation (see Figure 1):
U
nom±%
- combined adjustment for the minimal/maximal voltage tripping thresholds in % of nominal
(rated) voltage;
T
off
– tripping time delay setting (in seconds) for all alarm situations except the phase loss or if the
voltage on any of the phases gets lower then 100V. It is recommended to set the
T
off
time not less than
1 sec to escape from undesired frequent trippings caused by fluctuations in power circuits;
T
on
– time delay (in seconds) for automatic turn
ON
of the power load when the voltage parameters
returned back to normal values after the detected voltage interruption (autoreclosing time delay); turn
ON
time delay for after correct voltage is applied to the input terminals;
3.4 Toggle switches 4
– 8
(see Figure 1):
Using the switches user may select necessary functions for RNPP-311M to perform:
400/415V
– to select the desired standard of the power circuit;
SEQ
– wrong phase sequence or phase coincidence;
IMB
– phase imbalance;
U
min
– voltage is lower than the user adjusted value of
U
min
;
