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6          Wiring and Operation

6  Wiring

Connect the PV modules to PV IN then 

connect DC out of the PowerPack to 

the controller, paying attention to the 

polarity. Check the voltage from the PV 

generator. The voltage must not exceed 

the open circuit values listed in “Table 3” 

below. 

Table 3:

 Max. PV input voltage

PP600S

PS200

100 V DC

PS2-200

100 V DC

PS2-600

150 V DC

Select the wire that will fit to your grid 

connection socket and connect it to the 

PowerPack. Before connecting to grid, 

ensure that the grid connection is prop-

erly protected with a fuse and if required 

with an ELCB, all according the national 

electrical guidelines.

7  Operation 

Connect the AC power source and switch 

on the PowerPack AFTER it has been 

connected to the pump controller. When 

the controller and the PowerPack are 

switched on, the system ON light should 

flash on the controller and the pump 

should start. 

WARNING – Beware of high volt-

age! Hazardous electricity may 

be present and can shock, burn 

or cause death! Authorized, 

qualified personnel only! 

CAUTION – The PowerPack 

should only be connected to 

power after correct wiring or 

the controller might get dam-

aged. 

CAUTION – Do not connect any 

electrical load to the PV gener-

ator other than the LORENTZ 

pump controller and Power-

Pack. Connection of battery 

charger, active solar tracker 

controller, electric fence charg-

er or other load simultaneously 

with LORENTZ PS2 systems may 

interfere with the controller 

and prevent proper operation. 

CAUTION – Measure the voltage 

before connecting power to the 

Powerpack. Follow the guide-

lines included in this manual 

regarding maximum PV input 

voltages.

CAUTION – Do not connect the 

PV modules to the DC output as 

it may damage the PV modules. 

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