KEB Combivert R6-S Instruction Manual page 34

Connection Power Unit R6-S
6) In case of parallel connection of R6-S the total power can be smaller up to 10 % caused by production
tolerances of the commutation reactor. The impedance voltages uk of the commutation reactors must
be the same in case of parallel connection of R6-S with different sizes.
When connecting the devices absolutely pay attention to correct phasing !
Table 17:
pling diodes
Parallel operation
When connecting in parallel operation, the parameter default set must be
changed. See application instructions R6-S under "Special functions for parallel
connection".
Wiring of the control release of the connected inverters
A load draw from the DC circuit may be done only when the message "ready for operation" is set.
This can be guaranteed by a series connection of the relay R1 of the R6-S units with the control
release of the connected inverters.
G1, G2 Regenerative unit COMBIVERT R6-S
X2A
G3, G4 Drive controller KEB COMBIVERT
X2A
S3, S4 Control release for one KEB COMBIVERT
Table 18:
GB - 34
Regenerative operation at parallel operation of up to three R6-S with decou-
G1
24
X2A 25
26
G2
24
X2A 25
26
Control terminal strip
24
Relay 1 / NO contact
25
Relay 1 / NC contact
26
Relay 1 / switching contact
Control terminal strip
16 Control release
20 24 V output
Wiring of the control release of the connected inverters
S3
16
20
S4
16
20
Ready for operation relay
This terminal assignment refers only to
one KEB COMBIVERT