GB - 86
Connection Power Unit R6-S
D1…D8 Decouplingdiodes(seeannex)
DR1,
1)2)
DR2
Commutationreactor/harmoniclter
DR3
2)
Mains choke
F1…F3 Mains fuses type gR
F4 10AfusegG/gLmustbemonitored(seetechnicaldata)
F5 DCfusestypeaRmustbemonitored(seetechnicaldata)
F6, F7 DC fuses type aR/gR ThecablecrosssectionaswellastheDCfuses(seechapter2.1)must
bedimensionedtotheDCratedcurrentoftheload(seetechnicaldataof
theinverter).
G1, G2
Regenerative unit COMBIVERT R6-S
X1A Power circuit terminals
X1B Connection for precharging and switching-on of line contactor K1, K3
X2A Controlterminalstrip(X2A.12:controlrelease;X2A.17:voltageoutput)
X2B Connection for synchronization line
X2C Activationoftheself-holdingoftheloadshuntrelay(K2internal)
G3 Frequencyinverteralltypes(see4.3.1)
G4 FrequencyinvertertypeB1/B2(see4.3.1)
H Supply of the signalling device
H1 Error message contactor K1 not dropped
H2 Error message contactor K2 not dropped
HF1,
HF2,
HF3
Radiointerferencelter
K1, K3 Regenerative contactor with auxiliary contact
K4 Line contactor with auxiliary contacts switches on the system.
M Motor
S2, S3 Realize control release with PLC or pre-charging contactor / -switch
1) In case of parallel connection of R6-S the total power can be smaller up to 10 % caused by pro-
duction tolerances of the commutation reactor. The impedance voltages uk of the commutation
chokes must be the same in case of parallel connection of R6-S with different sizes.
2) Parallel connection of the frequency inverter and R6-S causes a circulating current in regenerative
operation. It is depending on the inductance of the mains choke. The entire regenerative power is
75...90 % of the R6-S regenerative power.
Figure 36: Regenerative operation at parallel operation of up to three R6-S with decou-
pling diodes.