Pump Wiring; Pump Accessories Wiring - Lorentz PSk2-7 Manual De Instalación Y Operación

8.5.5 Pump Wiring

The motor cables of the pump have a marking to allow
correct wiring. Connect the wires using this sequence:
ƒ 1: Motor cable L1
ƒ 2: Motor cable L2
ƒ 3: Motor cable L3
ƒ : Ground connection
If necessary, interchange any two phases to reverse direc-
tion. Refer to chapter "9 Pump Installation" on page 37
for detailed pump installation instructions.
Controller Installation

8.5.6 Pump Accessories Wiring

Terminals 1 and 2
To protect the pump from being damaged by dry running
connect a suitable source low protection switch to terminal
1 and 2. If dry run protection is not needed, add a jumper
wire between these two terminals.
CAUTION - Never let the pump run dry.
Dry running will damage the pump and
void the warranty. LORENTZ requires a dry
run protection for every pump system.
Terminals 3 and 4
Connect any kind of external switch for remote control of
the controller. To run the pump the switch must be closed
(NC). If no switch is used the terminals No. 3 and 4 have to
be connected with a jumper cable (factory setting).
Terminals 5 and 6
Connect a water detection sensor to detect the presence of
water, this is usually installed on the suction side of surface
pumps for dry run protection.
Terminals 7 and 8
Connect a LORENTZ 1.5Wp Sun Sensor module module.
This PV module is used to measure the solar irradiation and
allows you to set irradiation dependent START / STOP values
for the pump. These settings can only be done via LORENTZ
PumpScanner.
Terminals 9 and 10 / 11 and 12
Any suitable sensor for 24 V DC supply voltage, current
(signal) range of 4 –20 mA and load impedance of 100 Ω
can be connected, e.g. LORENTZ pressure sensor, LORENTZ
liquid level sensor. The sensor must then be configured in
PumpScanner.
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