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RN-111M
NOVATEK-ELECTRO
To improve operational properties of the product it is recommended to install the fuse (fuse element),
or the equivalent for RN-111Мcurrent of 1A.
3.1.3 Using toggle switches on the front panel set necessary mode of operation.
3.1.4 In case of using RN-111M as Minimal/Maximal protection relay, Minimal protection relay or time relay
connect wires according Figure 2, vers.a.
If RN-111M is being used as a maximal voltage protection relay power load should be connected according
Figure 2, vers.b.
If power load is less than 3.5 kW (16 A) then it could be commutated directly bythe output contacts of the
RN-111M; if the power load is more than 16 A –then it should be commutated using contactor of appropriate rated
parameters and the RN-111M should operate with the magnetic coil of the contactor.
3.1.5 By spinning the knobs on the front panel set the required Minimal and Maximal voltage tripping thresholds
(Umin and Umax) and set necessary turn ON time delay (Ton).
ATTENTION! NOT TO BREAK OR TURN THE KNOBS, PLEASE, DON'T MAKE EXCESSIVE EFFORTS
WHEN PERFORMING ADJUSTING OPERATIONS.
3.1.6 Connect RN-111M to the power circuit.
3.1.7 Give the power supply to RN-111M and by spinning the adjustment knobs set precisely the required
values for the Umin, Umax and Ton. When spinning the knobs on the LED digital display it is shown the exact
value of the adjusted parameter.
3.2 The device use
3.2.1 RN-111М can be in the following states:
–Normal operation (power load is ON, the load LED indicator lights, and three-digit indicator shows the
value of the monitored voltage);
–Alarm (power load is OFF, the load LED indicator does not light, the three-digit indicator shows the value of
the monitored voltage in the flashing mode);
–ARC time indication (power load is OFF, the load LED indicator does not light, the three-digit indicator
shows the value of time in seconds, remaining until the end of ARC time delay and the dot lights in the low-order
digit). After the end of ARC time, the device will return to the Normal operation condition if the input voltage is
normal.
3.2.2 The device can operate in four independent modes:
–Minimum voltage relay (when Umin switch is ON and Umax switch is OFF): the device switches to the
ALARM state when the input voltage drops below the minimum voltage threshold Umin;
–Maximum voltage relay (when Umax switch is ON and Umin switch is OFF): the device switches to the
ALARM state when the input voltage rises above the threshold for the maximum voltage Umax;
–Voltage relay (when Umin and Umax switches are ON): the device switches to the ALARM state when the
input voltage drops below the minimum voltage threshold or when the input voltage rises above the maximum
voltage threshold;
–Turn on time delay relay (when Umin and Umax switches are OFF).
3.2.3 Features of first start-up
If the RN-111M has been de-energized, when the normal voltage is supplied to the input, the time to prepare
for operation (0.3 - 0.4 sec) is added to the time of the re-closing set by the Ton (sec) knob, and the three-digit
indicator briefly shows “”.
3.2.4 Automatic reclosing (ARC)
The reclosing time is set by the Ton (sec) knob.
If the RN-111M is on as the maximum voltage relay and has been de-energized, when the normal voltage is
supplied to the input, the ARC time delay does not occur. In other operating modes of the device, the reclosing time
starts from the moment when the power is applied.
In all modes of operation, the device will go to the Normal operation state before the reclosing time has
finished. The countdown of the reclosing time starts from the moment of the fault occurrence.
During the countdown of the reclosing time the three-digit indicator displays the following:
–the actual value of the input voltage in flashing mode, if RN-111M is in the Alarm state;
–the time remaining until the end of the reclosing time, if the device is in the state of ARC time indication.
3.2.5 Minimum voltage relay mode
The power load is connected in series with contacts 2 (3), 4 (Fig. 2 version 1).
If the RN-111M was de-energized or in the ALARM condition, when the input voltage is applied to the input, the
device changes to Normal operation: contacts 1, 2 (3) are opened and contacts 2 (3), 4 are closed, the load is
connected.
When the input voltage drops below Umin for more than 12 seconds, the RN-111M goes to the Alarm state
and contacts 1, 2 (3) become closed and contacts 2 (3), 4 open, the load is disconnected. If the voltage drops below
60 V from the set Umin, the device will go to the Alarm condition after 0.2 seconds.
When the input voltage becomes greater than Umin by a hysteresis value of 4 –5 V, the device will return to
Normal operation again.