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Neptune solenoid pump NSP-M
9 Electrical installation
Mortal danger from electric shock!
If there is an electrical accident, you must disconnect the dosing
pump from the mains as quickly as possible.
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Install an emergency stop switch or integrate the dosing pump
into the plant safety concept.
Danger of automatic start up!
The dosing pump does not have an ON/OFF switch and may start to
pump as soon as it is connected to the mains supply. This means
that dosing medium can escape. Depending on the type and
hazardousness of the dosing medium, this can result in damage to
property or to injury.
ð
Install an emergency stop switch or integrate the dosing pump
into the plant safety concept.
Damage due to incorrect mains voltage
The dosing pump can be damaged if you connect it to the wrong
mains voltage.
ð
Observe the information on the mains supply that is given on
the rating plate.
Insufficient electromagnetic compatibility
When you connect the dosing pump to a socket without an
attached protective earth, it is not possible to guarantee the
interference radiation and interference immunity according to EMC
regulations.
ð
Only connect the dosing pump to sockets with an attached
protective earth.
9.1 Principles
The dosing pump has a 110 – 240 V AC 50/60 Hz wide-range power
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supply unit.
The electrical connection comply with local regulations.
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The dosing pump must be plugged into a grounded power outlet.
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To avoid dosing errors at the end of the process, the dosing pump
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must be locked electrically.
The dosing pump must not be operated by switching the mains
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voltage on or off.
DANGER
CAUTION
NOTE
NOTE
Signal cables must not be laid parallel to high-voltage current lines or
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mains cables. You must route supply and signal lines in separate
channels. An angle of 90° is required at line crossings.
9.2 Conductive rubber band
Conductive rubber band
The NSP-M is delivered with a conductive rubber band connected
in the connection port. The band conducts electricity and ensures
that the contact in the connection port remains closed when no
cable is connected. If the conductive rubber band in connection
port is missing or not correctly installed and is not connected with a
cable, it is not possible to start the dosing pump.
ð
Insert the conductive rubber band in connection socket if you do
not wire up the connection port.
ð
Ensure that the conductive rubber band is installed on the
correct contacts (see instructions in following chapters).
ð
Retain the conductive rubber band so that you can change the
assignment of the connection port later.
Fig. 15: Inserting the conductive rubber band
Removing the conductive rubber band
Remove the conductive rubber band before inserting the cable in the
connection socket.
After the cable has been removed, the conductive rubber band must be
reinserted in the connection socket. Insert it between pins 1+2 and 3+4
as shown in Fig. 15.
Operating instructions
NOTE
Electrical installation
21
Conductive rubber band
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