Monitoring Function - Explanations Bm50Xx - Baumuller b maXX 5000 Series Instruction Handbook Manual

10.2.1 Monitoring function - explanations BM50XX

Power supply 
This monitoring function checks whether the power supply voltage has a value within the
voltage set voltage range (see
44). 
If the value is out of this range or 25 % above or 25 % under the default power supply
mains voltage, the mains rectifier unit switches off and the LED H1 lights up.
Phase monitoring This monitoring function checks the voltage of the three power supply phases. If one
phase is missing, „Phase failure" is generated after a period of > 100 ms.
If all three phases are missing, then the error „Power supply failure" is reported after a
period of > 100 ms.
Phase failure During the missing of a power supply phase the rated power output is possible up to 10 s,
after that time only 30 % of the rated power can be supplied for unlimited time.
if this values are exceeded the mains rectifier is shut down and has to be restarted by „re-
set" (X1:4).
At bad power supply conditions shutdown can be initiated earlier.
Overcurrent This monitoring function checks whether the peak value off the DC link current is higher
than 160 A (BM5031, BM5032) or 520 A (BM5043, BM5044). If the DC link current ex-
ceeds this value the mains rectifier unit is switched off and the LED H4 lights up. This
monitoring function provides a „disaster prevention" in case of a short circuit of the output
side.
DC link This monitoring function checks the voltage of the DC link. If the voltage is lower than an
internally set value (approx. 50 V under the specified value), the controller generates „DC
link undervoltage" and a warning is signaled. 
If the voltage rises above an internally set value (approximately. 825 V), the mains recti-
fier unit is switched off and the LED H4 lights up.
Overload 
This monitoring function controls the present load whether the power unit can supply the
monitoring peak current at the moment. In case the peak current is not possible, the message „Power
unit monitoring active and max. torque current is limited" (warning 206) is generated.
Heat sink tem- This monitoring function checks the temperature of the heat sink. If the temperature is too
perature high or below -5 °C, then the mains rectifier unit is switched off and LED H3 lights up.
Troubleshooting and Fault correction
ZRequirements for power supply / mains supply system–
Instruction handbook b maXX 5000
Document No.: 5.09021.16
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on page
231
of 328