Connecting The Pressure Unit To The Power Supply - Pentair Pool Products Nocchi CPS 10 Use And Maintenance Manual

3.4

CONNECTING THE PRESSURE UNIT TO THE POWER SUPPLY

- RS-485 Æ Communication port
Æ INIBIT input: NC external contact or NO
- INI
for the START/STOP command
Æ External Set Point (EST) command: NA
- S.P.
contact
Æ NTC sensor input to control temperature
- NTC
- TRASD. Æ Input 0÷5 Volts for pressure transducer
x +
x -
x D
34
x
Check to ensure that all connections are free from electricity.
x
Always disconnect the electrical power supply cable before working on electrical
or mechanical parts in the pressure unit.
x
After disconnecting the power supply, wait until the led LINE goes off
(approximately 2 minutes) so that the capacitors can unload, before working on
the CPS.
x
Perform the electrical connections in compliance with local standards in force.
x
The installer is responsible for checking that the electrical power supply system is
equipped with an efficient earthing system in accordance with current regulations.
Æ Positive
Æ Negative
Æ Signal
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