1-14 Product Overview
1560D-UM051D-EN-P – February 2005
3. The Pump Stop option functions only for a centrifugal pump running at
greater than approximately 2/3 of the motor rated horsepower.
4. Pump applications with input and/or output valves that are closed during
starting and/or stopping may not benefit from the Pump Control option.
Consult the factory for applications with valves.
5. For starting or stopping times longer than 15 seconds, power fuse
selection should be reviewed to ensure no element damage occurs.
The fuse minimum melting time-current characteristic curve should
be consulted to ensure that, at 1.1 times the full voltage locked rotor
current of the motor, the actual starting or stopping time does not
exceed 75% of the fuse melting time.
6. Motor overload and/or upstream breaker settings may have to be
adjusted to allow the starting or stopping current to flow for extended
periods.
Motor
Speed
100%
Time (seconds)
Pump Start
Run
Pump Stop
Motor
Speed
100%
Time (seconds)
Pump Start
Run
Pump Stop
Figure 1.13 – Pump Control Option
Pump stopping is not intended to be used as an
emergency stop. Refer to the applicable standard for
emergency stop requirements.
Pump stopping may cause motor heating depending on
the mechanical dynamics of the pumping system.
Therefore, select the lowest stopping time setting that
will satisfactorily stop the pump.
Control Options (cont.)
A T T E N T I O NA T T E N T I O N
A T T E N T I O NA T T E N T I O N
To Next Page
Loading...
Need help?
General
