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5
PM-23 PUMP MONITOR MANUAL
The display shows the time left to restart the motor. If
it’s required to restart without waiting, press the
“Reset” button to start the motor immediately.
MANUAL RESET
If the PM-23 is set to manual reset it will not restart the
motor until the RESET button is pressed and the fault
condition is no longer present.
FAILURE MEMORY
Failures are stored in the internal memory. When a
failure is detected a letter “F” will appear in the first line
on the right upper side of the display indicating a
failure has occured.
MANUAL RESET
PRESS RESET
LAST FAILURE
RAPID CYCLING
234 V 34 Amp.
F
Power 6,745 W
To check what failure occured, press the LAST FAILURE
button. The last failure will be shown for 3 s and then it
will be erased automatically.
UNDERLOAD PROTECTION
The PM-23 protects the motor when a loss of suction is
detected. When this happens, the motor uses less
power and the PM-23 shuts down the motor after a 5 s
trip delay.
The underload setup is set at 65 % of the power
consumption during automatic calibration, but it can
also be adjusted manually.
In the unusual event that the system has a wide power
variation and it’s consumption goes below 65% there
will be a false triggering of the underload protection.
In this case underload should be adjusted manually to
a lower value in the setup menu .
The overload trip point is set to 125% of the power
consumption during automatic calibration, but it can
also be adjusted manually.
UNDER VOLTAGE PROTECTION
The PM-23 protects the motor if the voltage drops
from normal conditions. It shuts down the motor after
a 5 s trip delay.
The under voltage protection is user-adjustable. The
default value for this setup in the PM-23 model is 200V.
To reset from this fault, the voltage has to increase 2%
above the under voltage value.
OVER VOLTAGE PROTECTION
The PM-22 protects the motor if the voltage is over
from normal conditions. It shuts down the motor after
a 5 s trip delay. The over voltage protection is user-
adjustable.
To reset from this fault, the voltage has to decrease 2%
above the over voltage value.
RAPID CYCLING PROTECTION
Pumps heat up if they are started very frequently. Such
heating could damage the pump even if an overload is
not present.
When the PM-23 detects that the pump starts more
than 4 times per minute, it will shutdown the pump to
prevent any damage.
100
125
150
175
200
225
250
275
5
10
15
20
25
OVERLOAD %
TRIP
DELA
Y
Sec.
OVER LOAD TRIP DELAY
OVERLOAD PROTECTION
The PM-23 protects the motor when an overload is
detected, when this happens the motor uses more
power and the PM-23 shuts down the motor after a trip
delay as shown in the graphic below.
