HLR Braking Resistors and DC Bus Resistor Units HLB
High temperatures in the proximity of braking
resistors!
NOTICE
Mount the braking resistors to temperature-resistant mounting surfaces in
such a way that the air can freely enter and escape and heat does not accu‐
mulate.
Take the minimum distances d
top
, d
bot
and d
hor
into account.
Take into account that the temperatures in the range of the indicated mini‐
mum distances can be above 250 °C.
Leave sufficient distance to combustible objects and take into account that
braking resistors dissipate a lot of heat.
Make sure there is free cooling air supply at the bottom d
bot
and cooling air
discharge at the top d
top
.
The space must be able to discharge the energy converted by the braking re‐
sistor.
Selection Aid for Additional Components HLR, HLB
Criterion
DC bus resistor unit HLB
Braking resistor HLR
Regenerative operation with great energy con‐
tents, e.g.
●
Deceleration of great centrifugal masses
at centrifuges
●
Long braking processes for crane lifting
gears
□
Take energy absorption capacity
and continuous power into account
■
Type of construction N
Check use of HMVxx.xR
Kinetic energy is generated in control cabinet
and can be dissipated
■
□
Type of construction A
Kinetic energy cannot be dissipated in control
cabinet
-
■
Type of construction N
Observe degree of protection
Quick discharge of DC bus required
■
DC bus short circuit device
Observe the note "Risk of fire
caused by the "sacrificing behavior"
of the ZKS stage!"
-
Deceleration of synchronous motors in the case
of error "mains failure"
■
-
Supply unit HMV01.1R-W0120
■
-
Converter HCS02 selected
■
■
Converter HCS03 selected
■
■
Option -xxBx required
■
Recommended
□
Suited to a limited extent
-
Not allowed
Tab.8-15:
Selection Aid
Bosch Rexroth AG
DOK-INDRV*-SYSTEM*****-PR06-EN-P
Rexroth IndraDrive Drive Systems with HMV01/02 HMS01/02, HMD01, HCS02/03
122/309
Configuring the Drive System
