Forced Ventilation (Ic416) - Bosch Rexroth MS2N Operating Instructions Manual

MS2N Synchronous Servomotors

Forced ventilation (IC416)

MS2N motors of size 07, 10 und 13 are available as forced ventilated designs.
The designation is done via the feature cooling mode within the type code:
„A" 230 V (50 / 60 Hz)
●
„B" 115 V ( 60 Hz)
●
„C" 3 ✕ 400 / 480 V (50 / 60 Hz)
●
In case of force-ventilated motors, the energy dissipation is additionally realized
via a fan that is not connected to the motor.
WARNING
Before you get closer to operating fan units, take protective measures. Do not
wear jewelry, wear tight-fitting clothes and use personal protective equipment
(like a hairnet). Tie your hair back. Otherwise the danger exists that hair will get
ripped out.
The specified nominal data is reached at ambient temperatures of up to 40 °C.
Unhindered drawing in of cooling air and heat dissipation has to be ensured by
minimum distances to the machine environment.
a Minimum distance 80 mm
Fig. 4-3: Minimum distance
Blowing fans, air flow direction NDE → DE.
Operate fans only in dustfree and dry ambient air. Heated air may not be sucked
in again.
Dirt and contaminants can reduce the flow rate of the fans and result in a ther-
mal overload of the motors. The availability of the system can be increased by
regular checks and cleaning of the fans and motors. Please ensure access to the
motors for maintenance purposes.
Fans are not suited to transfer ambient air
Damage to persons and machines due to draw-
ing in of hairs, clothes or loose objects.
R911347581_Edition 04 Bosch Rexroth AG
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