4. Re-position the cable duct (rubber grommet) on the encoder cable that
the hole is sealed by the rubber grommet.
5. Fasten the fan cover with all fastening screws. Then, pull the encoder
cable outside through the cable duct that it is not stressed or tensioned.
Close the orginal hole of the cable duct with a filler plug.
The required fan and corresponding connection materials (air
hose, connection clamps, etc.) do not belong to the scope of de‐
livery of the motor; these must be provided by the machine manu‐
facturer.
Danger of explosion due to electrostatic
charge"
Please observe the following when selecting and mounting the air hose be‐
tween motor and fan,
● the hose has to be approved for the use in ATEX atmospheres.
● there must be no electrostatic charge.
MAD motors may be operated only if the fan provides the specified minimum
amount of air flow on the motor side. Therefore, when selecting radial fans or
central ventilation systems, take into account the length of the air duct to be
installed, as well as the air baffles. Also observe the notes regarding "radial
ventilation in intense polluted or hazardous areas" in the motor project plan‐
ning manual.
① Hazardous area
② Neutrally area
③ MAD motors in ATEXdesign
④ e.g. radial fan (not in the scope of delivery)
Fig. 9-9: Example of use about fan connection of the MAD motor in ATEX
area.
Fan shroud on
MAD...
Connection diameter for air hose
[mm]
Necessary air amount on the mo‐
tor [m³/h]
100 80 300
130 100 1000
DOK-MOTOR*-IDYN*A*EXPD-IB05-EN-P Bosch Rexroth AG 45/69
Rexroth MAD and MAF Motors in EX px d Design acc. to ATEX Directive 2014/34/EU
Connection system
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