Operating instructions

Technical Data
Feed/Feed-Back Units BUC 624, 625 11
Baumüller Nürnberg GmbH 5.96024.06a
2.2 Electrical data
1)
Installation height > 1000 m see characteristic curve 1
2)
Power reduction (24V ventilator) in case of power supply voltage < 22.7 V
DC
on requirement toler-
ance limits according to DIN 19240
3)
Mains supply voltage ≠ 400 V
AC
, see characteristic curve 2 - 3
4)
Connection voltage in front of the line commutator
5)
IMPORTANT: This data is valid for any drive power. The units will be distroyed, if you do not observe
the given limits.
Feed / Feed Back Unit BUC 624 BUC 625
Connection Voltage
4)
3 x 400 V
AC
±10 % 50 / 60 Hz
Nominal Input Current
3)
26.5 A 53 A
Semi-conductor fuse (external) 40 A 80 A
Nominal power
3)
18 kW 36 kW
Nominal DC link voltage
640 V
DC
maximum capacity in DC link (including feed unit) 10 mF 10 mF
Capacitor in the DC link 1500 µF 2250 µF
maximum number of power units, which can be con-
nected to the DC link of the feed/feed-back unit
(when length of motor cable = 80 m)
5)
3 5
Switch on: Ready for use after overload switching the
overload circuit after 10 s
depends on capacitor in the DC link:
2 to 10 s
Low voltage power supply PELV
2)
+ 24 V
DC
± 20 %
Power consumption 45 W 45 W
Power loss in nominal use without ballast
400 W 770 W
Operation environmental temperature range T
B
0 ... 45 °C (with power reduction 55 °C)
Coolant temperature range T
K
0 ... 45 °C (with power reduction 55 °C)
Power reduction 3 % / °C
Installation height
1)
1000 m above sea level
Relative air humidity 15 % ... 85 % no dew
Storage temperature range -30 °C ... +70 °C
Noise level >70 dB
Type of protection according to EN60529 IP20
Climatic category 3K3
Protection class I
short-circuit-proof
The units are partly short-circuit-proof according to prEN 50178 /
VDE0160 / 11.94 section 6.3.4
Dimensions (BxHxD) 165 x 360 x 280 mm 198 x 360 x 280 mm
Weight 12 kg 16 kg