12.07.2015 Views

Emotron FDU 2.0 AC drive

Emotron FDU 2.0 AC drive

Emotron FDU 2.0 AC drive

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

7.6.7 Wiring Alternating MasterFig. 48 and Fig. 49 show the relay functions MasterPump1-6 and SlavePump1-6. The Master and Additional contactorsalso interlock with each other to prevent dual powering ofthe pump and damage to the inverter. (K1M/K1S, K2M/K2S, K3M/K3S). Before running, the <strong>FDU</strong> will select apump to be Master, depending on the pump run times.!CAUTION!The wiring for the Alternating Master controlneeds special attention and should be wiredexactly as described here, to avoiddestructive short circuit at the output of theinverter.PEL1L2L3PE L1 L2 L3<strong>FDU</strong>U V WK1SK2SK3SK1MK2MK3M(NG_50-PC-10_1)P13~P23~P33~Fig. 55 Power connections for Alternating MASTER circuitwith 3 pumps~B1:R1MasterPump1B2:R1SlavePump1B1:R2MasterPump2B2:R2SlavePump2B1:R3MasterPump3B2:R3SlavePump3K1S K1M K2SK2MK3SK3MK1MK1SK2MK2SK3MK3SN(NG_50-PC-11_3)Fig. 56 Control connections for Alternating MASTER circuitwith 3 pumps46 Main Features <strong>Emotron</strong> AB 01-4428-01r3

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!