Pump Accessories Wiring - Lorentz PS Série Manuel D'installation Et De Fonctionnement

28 Controller Installation

7.7.1.3 Pump Accessories Wiring

Terminals 1 and 2
To protect the pump from being damaged by dry running
connect a well probe to terminal 1 and 2. If dry run protec-
tion 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, 4 and 5
Connect any kind of external switch (NO or NC type)
for remote control of the controller. If no switch is used
the terminals No. 4 and 5 have to be connected with a
jumper cable (factory setting). If a normally open switch is
used (connected to the terminals No. 3 and 4) the jumper
cable (connecting the terminals No. 4 and 5) must remain
installed.
Terminals 6 and 7 (not for PS4000)
Connect a jumper cable between these two terminals to
switch the controller to battery mode. Refer to "7.7.1.5
Input Wiring for Battery-based Systems" on page 30.
CAUTION – Only PS150, PS200, PS600,
PS1200 and PS1800 pump systems can be
operated from batteries.
Controllers with DataModule
Terminals 8 to 11 can only be used, if a DataModule
is installed. If you are not sure whether a DataModule is
preinstalled check the label on the controller housing.
Terminals 8 and 9
Install a flow meter in the pipeline and connect it to termi-
nal 8 and 9. An impulse input of the flow meter between 1l/
Impulse to 10l/impulse is recommended. The DataModule
can handle up to 1000 impulse per second. The flow can be
viewed with the LORENTZ PumpScanner software.
Terminals 10 and 11
Connect the pressure sensor to the terminals 10 and 11. The
output voltage is 15VDC, the current (signal) range 4mA to
20mA and the load impedance 100Ω. Choose a pressure
sensor which works with these characteristic values. Control
and monitor the pump system with the LORENTZ Pump-
Scanner application.
CAUTION – Only connect a suitable
pressure sensor to terminals 10 and 11.
Never create a short circuit. A short circuit
will damage the DataModule immediately
and will void the warranty. Observe the
polarity of the pressure sensor.