Watson-Marlow APEX10 - Manual (Page 23)

INSTALLATION
23
5.3.4 Motor
The motor connection must meet the local applicable
regulations. A thermal safety device should reduce the
risk of a motor overload. For connecting PTC
thermistors (if present) a special thermistor relay must
be used. In case of doubt, contact your Bredel
representative for advice. Refer to §
11.3 for
specifications.
Refer to the documentation supplied with the electric
motor for information on how to connect the motor to
your power supply.
5.3.5 Frequency controller
If the hose pump is fitted with a frequency controller,
consider the following points:
•
Take precautions so the motor does not restart
automatically after an unscheduled stop.
In the event of a power or mechanical failure,
the frequency controller stops the motor. When
the cause of the failure is removed, the motor
can restart automatically. The automatic restart
can be dangerous in certain pump installations.
F2
F1
F3
Maximum permissible loads [N] on the
pump connections
Force APEX10, 15, 20
F1 600
F2 120
F3 300
WARNING
A frequency controller that is fitted without
manual control can start the pump
automatically when power is applied.