Regenerative Operation At Parallel Operation Of Up To Three R6-S With Decoupling Diodes - KEB Combivert R6 Instruction Manual

Connect the Power Unit
4.4.4 Regenerative operation at parallel operation of up to three R6-S with decoupling
diodes
(Parallel operation with an error at current sharing of the R6-S units of ≤10 %)
PE N L3 L2 L1
K4
13
21
F4
A2
F1
A2
F2
K4
F3
N L2 L1
PE L3
When connecting the units absolutely pay attention to correct phasing ! The external precharging is to be
made within 10 s !
A load draw from the DC circuit may be done only if relay 1 is active (ready signal). This can be guaranteed
by a series connection of the relay of the R6 units with the control release of the connected inverters (see
next side GB-24).
A1 Synchronization unit (max. length of the phase lines 1 m)
D1...D8 Decoupling diodes (see annex)
DR1,
1) 2)
Commutation reactor / harmonic filter
DR2
GB - 28
14
22
H
H1
13 14
K1
A1
22
21
K3 S2
43 44 33 34
L3
X2D
L2
X2C
L1
X2B
HF1
L1.1
L1 L1'
L2 L2' L2.1
L3 L3'
L3.1
H2
13 14
K3
A1
22
21
K1 S3
43 33
44 34
HF2
L1.1
L1 L1'
L2 L2' L2.1
L3 L3'
L3.1
DR3
L1.1
L1.2
L2.1
L2.2
L3.1
L3.2
L1 L2
X1B
X1B
14/K2
13/K2
G1
25
X2C
24
12
X2A
17
A1
X2B
DR1
++
L1.2 L1.2
X1A
L2.2 L2.2
- -
L3.2 L3.2
L1 L2
X1B
X1B
14/K2
13/K2
G2
25
X2C
24
12
X2A
17
X2B
DR2
- -
L1.2 L1.2
X1A
L2.2 L2.2
++
L3.2 L3.2
HF3
L1 L1'
L2 L2'
L3 L3'
D1
D2
D3
D4
F6
F7
F5
D5
D6
D7
D8
L1L2 L3
further on next side