? Does this voltage have positive polarity?

SOLA 4000 - Installation and Initial Start-Up

2 Initial Start-Up

B:Inverter Voltage Adjustment • On the SS/FY pcb, measure the voltage at the screws Inverter R, Inverter S, Inverter T with respect to the neutral terminal 5- N.

?Does this voltage correspond to the desired voltage?

no • Adjust the voltage to the desired value individually for each phase using P3, P4 and P5 on the ICT-2 pcb.

NOTE: If the inverter output voltage is changed, the value at TP1 (adjusted with P1) on the ICP pcb should be checked. (6V corresponds to nominal voltage). Note also that for parallel systems, if the voltage is changed here, the current sharing will also be affected. Therefore, change voltage settings ONLY IF ABSOLUTELY NECESSARY. Small variations of the voltage will not affect system performance. The UPS is already pre-calibrated in the factory with nominal load.

yes • Continue with C

C:Inverter free-run frequency check • Insert a pin d=2mm in the red test point S1 on the ICP pcb. The red LED LD3 on the ICP pcb must be permanently lit. The inverter frequency is now free-running without the internal oscillator.

•On the SS/FY pcb, measure the inverter frequency on the screws Inverter R, S or T with respect to neutral.

•Check that the frequency is set at the required value (50/60 Hz +/- 0,1 Hz). It can be adjusted with P1 on the ICT-2 pcb. Re- move the pin from S1. The inverter now synchronises with the internal oscillator.

•Make sure that the batteries have been installed according to the instructions for installation.

With an external battery cabinet B3/38:

•Measure the battery voltage in the battery cabinet at the battery switch between cables:

--290 (-) and -1 (+)

-+1 (-) and +4 (+)

With an external battery cabinet B3/65:

•Measure the battery voltage in the battery cabinet at the battery switch between cables:

--290 (-) and -1 (+)

-+1 (-) and +2 (+)