SOLA 4000 - Installation and Initial Start-Up
3 Additional Start-Up Proced. for Multi-Unit Systems
3ADDITIONAL START-UP PROCED. FOR MULTI-UNIT SYSTEMS
3.1Start-Up Procedure for Hot -standby Sys- tems
Repeat the procedure of section 2 for the second unit in the system (with the first unit off).
Ensure that the interconnecting BUS cable is connected according to section 1.9.1 and FIG 1.9.3.
J• Switch off the inverter at the second unit with PB2 at the top of the ICP pcb. The unit will transfer to the bypass supply.
•Switch on IRP of the first unit.
•Ensure that the switch IUG of this unit is off.
•Switch on IRE of the first unit.
After approx. 10 seconds the display will flash with a "U" indica- tion and static bypass switch SSB will be closed.
•Measure across the output switch IUG from input to output of each phase.
?Is this voltage less than 2V a.c for all three phases?
no The output power interconnections are incorrect and must be reconnected correctly. Switch off both units and the mains supply and recheck the connections.Return to J
yes Continue
•Close IUG of the first unit. The two static bypasses (SSB) are now connected in parallel.
•Close the battery switch of the first unit.
•Start the unit by pressing "START" on the front operating panel.
when the inverter is synchronised, the unit will transfer the inverter to the output (SSI closes and both SSB switches switch off).
•Press "START" on the operating panel of the second unit.
The inverter will start and become ready (check that the green LED LD6 on the ICP pcb is illuminated) but the static switch SSI will not close.
•Check the commutation of the inverters by pressing PB2 at the top of the ICP pcb on the unit currently with SSI closed.
•Restart the inverters (with PB2 on ICP or with "START").
THE SYSTEM IS NOW IN NORMAL OPERATION AND THE
HAS BEEN SUCCESSFULLY COMPLETED.
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