GB
D
F
I
E
PL
HR
MNE
RO
SRB
5
the motor. The DRP then attempts to re-start the motor after a period of 30 seconds, automatically, wi-
thout manual intervention. This automatic reset is programmed with successive attempts of 300s, 600s,
1200s (approx 20 minutes), 2400 seconds and 4800 seconds. If the water comes back and the motor
works continuously for a minimum of 30s, the programmed time delay will reset itself automatically. after
the last attempt, the DRP will put the pump to ”sleep” and it can only be reset by disconnecting the power
supply, i.e. pulling the motor cable from its socket. If this occurs frequently, it simply means that the delivery
of the borehole is lower than the delivery of the pump installed and the pump should be replaced with one
of lower delivery. alternatively, you can “throttle back” the delivery by using a valve.
too frequent Starts/Stops – Pressure vessel Breakdown (All versions)
The DRP will also protect the motor if it is starting and stopping too frequently. This would
most likely happen for example if the tank membrane were burst or if the pressure-tank was
low in air. This should normally alert the user by virtue of the fact that (s)he would notice
that their water supply was intermittent.
If the time between the start and stop is lower than 2 seconds, the system will stop for 2
seconds, then it will try to start again. If the time between the next start and stop is again
lower than 2 seconds, the motor will stop for 6 seconds, then it will start again.
If the time between the next start and stop is again lower than 2 seconds the motor will stop for 20
seconds, then it will start again.
If the time between the next start and stop is again lower than 2 seconds, the motor will stop for 40
seconds, then it will start again.
If the time between the next start and stop is again lower than 2 seconds, the motor will stop for 80
seconds, then it will start again.
If the time between the next start and stop is again lower than 2 seconds, the motor will stop for 160
seconds, then it will start again.
after the last attempt, the DRP will put the pump to ”sleep”. It can only be reset by disconnecting the
power-supply, i.e. pulling the motor cable from its socket for a minimum of 10 seconds.
If the time between the start and stop is more than 5 seconds, the DRP will be reset automatically.
Overload Protection (version 2.0 – Blue)
There is no overload protection built into this DRP
Overload Protection (version 3.0 – Blue & Red)
If the current remains below 110% of the max current of the motor, the motor will work
continuously. If the current remains 110-125% of the max allowed current for the motor,
the DRP will only allow the motor to work for 3000seconds (50 min). after this period of
time, the DRP will stop the motor for 15min to protect it from being damaged. If the anomaly
continues it will repeat this procedure 20 times before the DRP eventually will put the pump
to ”sleep”. It can only be reset by disconnecting the power-supply, i.e. pulling the motor cable
from its socket for a minimum of 10 seconds.
If the current exceeds 125% of the max allowed current for the motor, the DRP will only allow the motor
to work for 1 second. The DRP will stop the motor for 60min to protect it from being damaged. If the
anomaly continues it will repeat this procedure 10 times before the DRP eventually will put the pump to
”sleep”. It can only be reset by disconnecting the power-supply, i.e. pulling the motor cable from its socket
for a minimum of 10 seconds.
If the number of attempts does not reach the “sleep” mode the DRP will automatically be reset after the
motor has worked continuously for 5 seconds with a current less than ≤ 110% of max. current of the motor.
Protection against peaks of Low & High voltage (version 2.0 & 3.0 – Blue/Red)
The DRP protects the motor against very short peaks (microseconds) of high voltage up to
1000V. If the voltage remains and exceeds 300V (500V for DRP 3.0 – Red 380-415V) for a
period of time, it will burn the DRP and must be changed. This may happen if you are trying to
run the pump on an undersized generator. We recommend that you use a generator, which
has an output of 3 times the minimum requirement for the motor. In other words, a 3kW
motor, should at a minimum run on a 9kW generator.
too Frequent
Starts/Stops
Overload
High voltage
Содержание DRP Version 2.0-BLUE
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