6.7 Connection of a braking resistor
CAUTION
Braking resistors dissipate the produced energy of the motor into
heat during generatoric operation.
Burns and re risk due to high surface temperatures.
► Payattentiontoappropriateprotectionagainstcontactandre.
► The mains voltage must always be switched off in case of a defec-
tivebrakingtransistor(rerisk).
► Ifdirectcontactcannotbeavoidedduetostructuralreasons,afx
the warning "Hot surfaces".
DANGER
Regenerative operation
Risk of death due to electric shock!
The drive converter remains in operation in spite of switched off power
supply in regenerative operation.
► An error must be released by external wiring which switches the
modulation off in the drive converter. This can occur e.g. at termi-
nals T1 / T2 or via digital input.
► The drive converter must be programmed accordingly in each case.
The use of a KEB regenerative unit is reasonable for applications which produce
a lot of regenerative energy. Regeneration of excess energy into the mains.
75
ELECTRICAL INSTALLATION
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