Bosch CL300 Manual page 28

Configuration
2.1.8 Fan Unit
The following description refers to the fan units of the BGT300/301. The same features apply to the fan unit of the
Installation
2−16
The use of a fan may be necessary to prevent heat accumulation, depending on the
modules installed in the card cage.
The fan unit consists of one fan for models BGT300−K/301−K or two fans for mod
els BGT300/301 and a filter mat. The fan unit has a failure contact which can be
evaluated according to the requirements of the specific installation.
The failure contact responds only to the failure of one fan or both fans, but not in case
of poor air supply due to strong contamination of the filter mat.
Fan operating: Contact closed
Fan failed: Contact open
The fan unit operates with an external voltage of 24 V DC, which can be fed to the fan
unit from the left or from the right side of the card cage.
. Note ,
BGT300−K/BGT301−K.
See fig. 2−9.
Place rear edge of fan unit (10) on the rear mounting surface of the card
L
cage.
Connect the power supply.
L
Lift front side of fan unit to allow the fan unit latches (7) to latch.
L
Flexible Automation