Operating instructions

Installation
34 Feed/Feed-Back Units BUC 624, 625
5.96024.06a Baumüller Nürnberg GmbH
Connection information
F0 Module fuse (Refer to Accessories, Fuses)
BUC 624: 40-A semi-conductor fuse
BUC 625: 80-A semi-conductor fuse (Refer to Accessories, Fuses)
F1 Line protection fuse with reduced cross-sections only
(Refer to Accessories, Fuses)
F2 Fuse depends on the mains unit being used
F3 6-A microfuse fast for 400 Veff connection voltage
Current-operated e.l.c.b. The principles on which the power converter and the motor work lead to
leakage currents to earth, i.e. the drive may be incompatible with current-
operated e.l.c.b. systems.
For configuration, take into account provisional standard EN 50178:1994
Para. 5.2.11.
K1 Mains contactor
(auxiliary contact for controller enable optional, not absolutely necessary)
D1 Auxiliary relay for charging circuit
L1 Line commutator (see Accessories)
1U1, 1V1, 1W1, Cross-section of mains connection according to provisional standard EN
60204-1:1992.
For cable-laying, refer to EMC information.
If UL508C has to be observed: Use 60°C / 75° C copper conductors only
(UL508C, Nov 27, 1996, Tab. 39.2).
Nominal tightening torque of the terminal screws: 4 Nm resp. 35,4 pound-
inches.
ZK+, ZK- DC link connection to Feed Unit and to further power units.
If UL508C has to be observed: Nominal tightening torque of the terminal
screws: 4 Nm resp. 35,4 pound-inches.
DANGER
The DC link carries a voltage! Always use the supplied cover.
24-V power supply 24 V
DC
power supply for protective extra-low voltage with safe isolation
(SELV) according to provisional standard DIN 19240 for supplying the elec
-
tronic section.
Current consumption of the Feed/Feed back Unit: 1.8 A