Technical data
Instruction handbook bmaXX 5000
Document No.: 5.09021.19
47
of 346
3
1)
In case of power supply failure ((0.9 - 0) x U
AC
for t > 0.1 s), the error „Power unit not ready-to-operate“ is generated.
2)
The rated voltage is 400 V. At an power supply voltage of less than 400 V the output power of the device is reduced, refer to correction
values at changed operation conditions ZCorrection values input voltage– on page 54.
3)
The control voltage must correspond to PELV (EN 61800-5-1, chapter 3.21) or SELV (EN 61800, chapter 3.35). With a control voltage
< 24 V the fan output is reduced. Thus, it could be necessary to reduce the output current. If UL 508C is being considered, the current
is limited to 4 A (with fuses, in accordance with UL 248) and to a voltage of max. 30 V
DC
.
4)
Only necessary to comply with UL 508C, refer to ZUL notes– as from page 94.
5)
Change speed of the mains frequency max. 1 Hz/s (EN 61000-2-4, Class 3)
6)
The connection and/or operation of a device with the identifier BM5XXX-XTXX on IT mains or grounded delta mains is not allowed.
7)
3.3.2 Requirements for control voltage / 24 V power supply
Figure 19: Control voltage / 24 V power supply
The power supply unit for the 24 V voltage supplied must provide at least the rated output
that corresponds to the total 24 V power consumption of all devices of the rack system.
NOTE!
The distortion factor of the input current of following devices
BM50XX-XR /XS /XW ,, is at least twice as much the factor at operation with power choke.
The user has to check with the local power supplier whether an operation without power choke is allowed.
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