Lenze ERBPxxxRxxxx Brake resistor 200W-300W - Manual (Page 36)

2 Safety instructions
Residual hazards
EDKRBP082R DE/EN/FR/ES/IT 7.0
36
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H1sic_EN−UR_Warn
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Stop!
Possible overheating of the brake resistor during operation
Inadequate heat dissipation during operation can cause the brake resistor to
overheat.
Possible consequences:
ƒ The brake resistor is destroyed.
ƒ The drive is not braked but coasts to a standstill.
Protective measures:
ƒ Always connect the thermal contact of the brake resistor.
ƒ Integrate the thermal contact into the overall equipment monitoring
apparatus in such a way that the supply of power to the standard device is
switched off if the brake resistor overheats (e.g. switch−off by means of
mains contactor control).
O
Warnings!
Conditions of Acceptability:
ƒ The products covered by this report are intended for use with Power
Conversion Equipment (drives) only.
ƒ The Temperature Switch must be connected to the drive, so that the drive
switches off in case when the maximum operating temperature is
exceeded.
ƒ Temperature tests and abnormal operation tests have only been
conducted for single resistive elements and for continuous duty as
indicated under RATINGS. For any grouping of the resistor elements an
additional temperature test must be conducted, depending on the
evaluation of the mechanical construction and the expected temperature
rise.
ƒ For any duty cycle operation in the end−use application it must be
guaranteed that the maximum Wattage rating will not be exceeded. This
may be evaluated by calculation. If there will be any concern regarding to
this, additional temperature tests have to be conducted under end−use
conditions.