Flowserve KW941 - Manual (Page 15)

KW941 Pump Power Monitor USER INSTRUCTIONS ENGLISH 71569285 02-12
Page 15 of 24 flowserve.com
To reset, press the Low Power Trip Point function
button (or use the remote reset feature). This will
cause the Low Power Trip Point LED to go out and its
alarm relay to be reset. The pump may be restarted
after resetting the alarm, however, it is strongly
recommended that you investigate the cause of the
alarm.
5.3.2.2 Setting the Low Power Trip Point
1)
Pressing this function button will cause its LED
to illuminate. The current setting for the Low
Power Trip Point is displayed.
2) Press the ↕ SET arrow buttons to adjust the
setting.
3) After the trip point is set, press the HP or KW
button to return to normal operation (or any
other function button to activate that function's
adjustment feature).
Flowserve recommends the Low Power
Trip Point be set at the pump's power level for its
minimum continuous flow. This power level is
provided by Flowserve via the PC based pump
selection program (PROS+). If the information is not
readily available, contact your Flowserve sales
representative or local distributor. You may also
obtain a copy of the PROS+ program for in-plant use.
5.3.2.3 Setting the Low Power Trip Delay
1)
Press the Low Power Trip Delay button. The
Trip Delay LED will illuminate indicating the
function is active. The current delay value in
seconds (0 to 999) will be displayed.
2) Press the ↕ SET buttons to display the desired
value.
3) Press the HP or KW button to turn off the
function's LED and return to normal operation
(or any other function button to activate that
function's adjustment feature).
The delay time value should be set to
accommodate normal process fluctuations (usually 5
seconds or less). Excessive delays allow the pump
to operate at low power (low flow) conditions which
may result in damage to the pump.
5.3.3 High Power Alarm
The High Power Trip Point is the power level that, if
exceeded, will cause the High Power Alarm relay to
trip after the High Power Trip Delay has expired. The
normal state of the high power trip point LED is off.
5.3.3.1 Operation
If a high power trip has occurred, the High Power Trip
Point LED will blink and the High Power Alarm Relay
will trip if the High Power Trip Delay timer has
expired.
The High Power Trip Delay is the amount of time in
seconds (0-999) that must expire before the high
power alarm relay will trip. The timer is activated
when the power level increases above the High
Power Trip Point setting. The normal state of the
High Power Trip Delay LED is off.
When the power level increases above the High
Power Trip Point setting, the High Power Trip Delay
LED will blink. If the power level decreases below
the trip point setting before the delay timer value
times out, the blinking LED will then go out and the
unit returns to normal operation. If the power level
remains above the trip point longer than the delay
timer setting, the high power relay trips. The blinking
Trip Delay LED will go out and the Trip Point LED will
blink.
To reset, press the High Power Trip Point function
button (or use the remote reset feature). This will
cause the High Power Trip Point LED to go out and
its alarm relay to be reset. The pump may be
restarted after resetting the alarm, however, it is
strongly recommended that you investigate the cause
of the alarm.
5.3.3.2 Setting the High Power Trip Point
1)
Pressing this function button will cause its LED
to illuminate. The current setting for the High
Power Trip Point is displayed.
2) Press the ↕ SET arrow buttons to adjust the
setting.
3) After the trip point is set, press the HP or KW
button to return to normal operation (or any
other function button to activate that function's
adjustment feature).
Flowserve recommends the High Power
Trip Point be set at one of the following levels:
a)
The end of curve power shown on the pump
performance curve.
b) The maximum rated power of the motor.
c) The power rating of the magnetic coupling of a
mag drive or canned motor pump motor.