Lenze EMB9352−C - Manual (Page 88)

Mechanical installation
Important notes
6
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88 EDBMB935X DE/EN/FR 13.0
6 Mechanical installation
6.1 Important notes
ƒ Only use the braking units as built−in units!
ƒ Observe mounting clearances!
– Observe clearance of 100 mm at the top and at the bottom.
ƒ Make sure that the cooling air can access and the exhaust air can escape
unimpededly.
ƒ If the cooling air is polluted (dust, lints, greases, aggressive gases), which
may affect the function of the braking units:
– Take adequate countermeasures, e. g. separate air guide, installation of
filter, regular cleaning, etc.
ƒ Do not exceed the permissible range of the ambient operating
temperature (see chapter 4.1).
ƒ If the braking units are permanently exposed to vibrations or shocks:
– Check the use of vibration dampers.
Possible mounting positions
ƒ Vertically on the rear panel of the control cabinet, power connections
facing upwards
– Fixed with enclosed fixing rails (see chapter 6.2)
– Thermally separated with an external heatsink ("Push−through
technique") (see chapter 6.3)
– Thermally separated with an external convection cooler ("Cold plate"
technology) (see chapter 6.4)
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Danger!
ƒ In case of fault, brake resistors can reach very high temperatures;
the brake resistor may even burn down, e. g. in the case of
– mains overvoltage,
– application−specific overload,
– internal error.
ƒ Therefore mount the brake resistors so that no damage can be
caused by the possible, very high temperatures.