ProMinent Sigma 3 Basic Operating Instructions Manual page 40

Installation, electrical
40
WARNING!
Danger of electric shock
This pump is equipped with a protective earth conductor,
to reduce the risk arising from an electric shock.
– Connect the PE conductor to "earth" with a clean
and permanent electrical connection.
WARNING!
Danger of electric shock
A mains voltage may exist inside the motor or electrical
ancillaries.
– If the housing of the motor or electrical ancillaries
has been damaged, you must disconnect it from the
mains immediately. The pump must only be returned
to service after an authorised repair.
WARNING!
Danger of electric shock
There can still be dangerous voltage present for 3
minutes in the interior of motor designs with integral fre‐
quency converter.
– Only open the drain screw 3 minutes after the mains
voltage has been switched off.
WARNING!
Never change the "Motor voltage" and "Cycle frequency"
parameters with motor designs with integral frequency
converter.
The parameters on delivery from ProMinent do not cor‐
respond to the motor manufacturer's factory settings.
If other parameters are to be changed, then we recom‐
mend speaking to ProMinent head office in Heidelberg.
What requires electrical installation?:
Motor
n
External fan (optional)
n
Stroke control drive (optional)
n
Stroke adjusting drive (optional)
n
Diaphragm rupture sensor (optional)
n
Stroke sensor (optional)
n
Pacing relay (option)
n
Frequency converter (optional)
n
Earthing wires (to be provided on site)
n
Potential equalisation line (to be provided on site, prescribed in the
n
area at risk from explosion)