Connection Of The Combivert R6; General Description Of Inverter Input Terminals; Connection Terminals Of The Power Circuit - KEB Combivert R6 Instruction Manual

Connection Terminals
4.3

Connection of the COMBIVERT R6

4.3.1 General description of inverter input terminals

Starting current limiting
When connecting inverters to a DC bus pay attention to the internal wiring of the DC voltage inputs !
Inverters that directly output the DC link bus to the DC terminals must be integrated into the DC bus by
way that the supply unit(s) limit the starting current. The precharging must be completed within ten se-
conds.10
Maximum DC link capacity
The maximum DC link capacity can be calculated by adding the DC link capacities of all inverters in the
DC bus. A table for this can be found in the appendix. The supply source (supply unit or inverter with AC
input) must be suitable for this value.
Picture 4.3.1 General description of input terminals at KEB inverters
Terminals Description of terminals at KEB inverters
++, – – DC voltage input with starting current limiting; usable as output only if all units supplied by the DC
bus have a starting current limiting at the DC voltage input.
+(PA), - DC voltage output with starting current limiting; usable as input only if the starting current is limited
by the supply source.
PA, PB Connection for braking resistor; optionally only if a braking transistor is installed
L1, L2, L3 Mains input 3-phase
Type A1: AC/DC inverter
L1
L2
L3
Type A2: AC/DC inverter
L1
L2
L3
This type can be supplied by mains
and by DC circuit. The starting current
limitation is designed after the input
terminals. When used as output par-
allel connected inverters must have
an own starting current limiting at the
DC voltage input.
GB - 20
Type B1: AC inverter
++
L1
L2
+
L3
--
Type B2: AC inverter
++
L1
+
L2
L3
--
This type can be supplied by mains.
In consideration of the DC link capaci-
ty the DC voltage terminals can be
used as output. When used as input
ensure that the starting current is
externally limited.
Type C1: DC inverter
+PA
+
-
Type C2: DC inverter
+PA
+
-
This type is only a DC inverter with
starting current limiting. The DC in-
verter can be combined with all other
types in consideration of the maxi-
mum DC link capacity.
++
+
--
++
+
--