Danger, Warning – Elmo Rietschle G-BH9 User Manual
Page 17

Installation
© Gardner Denver Deutschland GmbH
17 / 32
610.44434.40.000
For motor overload protection:
Use motor circuit breakers.
This must be adjusted to the specified
nominal current (see rating plate).
DANGER
Electrical danger!
There is danger of an electrical shock when a
defective pump-motor unit is touched!
Mount motor circuit breaker.
Have electrical equipment checked regularly by
an electrician.
Interference immunity of drive motor:
For drive motors with integrated sensors, the
operator must provide for a sufficient interference
immunity itself. Select a suitable sensor signal
cable (e.g. with screening, connection as for a
motor power-supply cable) and analyzing unit.
Operation with frequency converter:
WARNING
Pump-motor units with a UL approbation may
not be operated on frequency converters in the
US without testing by a suitable test agency!
With a power supply by a frequency converter,
the following must be observed:
High-frequency current and voltage harmonics
in the motor supply cables can lead to emitted
electromagnetic interference. This is
dependent on the converter design (type,
manufacturer, interference suppression
measures).
Be sure to observe the EMC notes of the
converter manufacturer!
Use screened power supply cables if
necessary. For optimal screening, the screen
must be conductively connected over a large
area to the metal terminal box of the drive
motor with a screwed metal gland.
In the case of drive motors with integrated
sensors (e.g. PTC thermistors) interference
voltage can occur on the sensor cable
depending on the converter type.
Limit
speed:
see specifications on the rating plate.