Lenze 9400 Manual - Manual (Page 564)

Accessories (overview)
General accessories
Brake resistors
9

562 EDS94SPP101 EN 7.1
Operating conditions
Climatic
conditions
Class 3K3 to EN 50178 Without condensation, average relative humidity
85 %
Ambient
temperature
-10 °C ... +55 °C
Above 45 °C the permanent power P
d
is to be reduced by 2.5 %/°C
Installation
height
0 ... 4000 m amsl
Above 1000 m the permanent power P
d
is to be reduced by 5 %/1000 m
Mounting
location
z
The mounting location must comply with the device features mentioned in the chapter
”General data”.
z Flammable materials or substances must not be placed in the vicinity of the brake
resistor.
z
The heat generated by the brake resistor must be dissipated freely.
Mounting
position
Standard Vertically suspended with connecting cables at the bottom.
Variant Horizontally standing with fixing bracket at the bottom.
The permanent power P
d
is to be reduced by 30 %!
Free spaces
Standard at the top > 200 mm, to the sides > 25 mm, at the bottom > 100 mm
Variant at the top > 200 mm, to the sides > 45 mm, at the bottom > 45 mm
Design and
project planning
z Mean value of regenerative power < permanent power P
d
of brake resistor.
z Regenerative power during braking time < heat quantity Q
B
of brake resistor.
z
Braking time < 10 % of cycle time (braking time + dead time).
z Always connect the thermal contact and integrate it in a way into the system monitoring
that the mains supply will be switched off when the basic device is overheated.