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RNPP-311M
NOVATEK-ELECTRO
U
max
– voltage is higher than the user adjusted value of
U
max
The switches
SEQ, IMB, Umin, Umin
are intended for permission / prohibition of relay operation in
If the switch is set to the Left position
– then the corresponding function is turned
ON
;
If the switch is set to the Right position
– this function is disabled.
SEQ, IMB, U
min
, U
this switch is set to the Left
position (ON).
4. START UP PROCEDURE AND OPERATION
4.1 RNPP-311M
is supplied ready to use and doesn’t require any special start up procedures. Due to
the use of microprocessor based scheme all the settings and adjustments are set precisely accurately and
there is no need to check the accuracy of settings with a help of testing voltmeter.
After long time storage period it is recommended to check the functionality of RNPP-311M. There is no
need to perform any routine maintenance if the RNPP-311M is already in use for a long time and being used
in accordance to the operation conditions stated in the present documentation.
ATTENTION!
All the terminals connections and operation should be strictly performed according to
safety regulations. It is recommended to adjust all the knobs and select necessary functions when the
RNPP-311M
is in the “cold” state (not energized). When testing the device it is allowed to make adjustments
and change the settings on the energized RNPP-311M.
4.2 Start up procedure:
1. Using adjustment knobs set the required values of voltage tripping thresholds
U
nom
±%
; tripping time
delay
T
off
and autoreclosing time delay
T
on
;
2. Using 5-8 switches on the front panel (Figure 1) at the left or right position.
Left position of the switch - function is enabled;
Right position
–function disabled.
3. With the use of the DIP switch 4 ( Figure 1) set the type of the power supply input.
4. Connect RNPP-311M in parallel to the power load - using input terminals
9
,
10
,
11
(see Figure 1)
and Neutral to terminal
12
.
If necessary connect external 24V (AC/DC) power supply source to terminals
7
(
+
) and
8
(
–
);
5. Connect output terminals (
1-2
(
4-5
) and
5-6
(
2-3
)) to the control circuit (operational contacts of the
contactor);
6. Give the power supply to input terminals (energize the RNPP-311M)
If on the first start up RNPP-311M
doesn’t allow to turn
ON
the power load and indicates wrong phase
sequence alarm but the user is absolutely sure that the phase sequence is correct
– then it is necessary to
exchange the wires connected to terminals
10
and
11
.
If RNPP-311M is being used as a
maximal voltage protection relay
then the
break in the magnetic
starter coil power circuit
should be connected to terminals
1-2
(
4-5
) (
the reverse logic of switching-on)
.
The switch
U
max
should be set to ON position (enabled)
and the
switches
SEQ
,
IMB
and
U
min
should
be set to the OFF position (disabled).
4.3 RNPP-311M usage examples
a)
Minimal voltage relay
- Switch
Umin
is set to the left position (function is enabled)
- Switches
Umax
,
IMB
are set to the right position (
function disabled)
If the voltage level is lower than the user adjusted minimal voltage threshold (
U
nom±%
)
– then
RNPP-311M will turn
OFF
the power load with the user preset time delay
T
off
and red
ALARM
LED indicator
will turn ON. Corresponding
LINE
green LED indicator(s) will turn
OFF
indicating on which line the problem
occurred. If the voltage on any of the lines is lower than 100V
– then RNPP-311M will turn
OFF
the power load
within 0,2 sec.
b)
Voltage level monitoring and phase presence control relay
- Switches
U
min
and
U
max
are set to the left position
If voltage level is higher than the user adjusted maximal voltage threshold (
U
nom±%
)
– then
RNPP-311M will turn
OFF
the power load with the user preset time delay
T
off
; in case the minimal voltage
problem detected then the power load will be turned
OFF
with the fixed time delay of 12 sec (in order to
escape from fault tripping due to startup voltage drops). Red
ALARM
LED indicator will turn
ON
.
In case the phase loss detected
– then RNPP-311M will turn
OFF
the power load within 0.2 sec.
