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MS2N
Features and functions
Bosch Rexroth AG
R911347581, Edition 05
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
Damage to persons and machines due to
drawing in of hairs, clothes or loose objects.
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.
Fig. 3: Minimum distance
a
Minimum distance 80 mm
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 thermal 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,
•
containing abrasive particles.
•
having a corroding effect (e.g., salt mist).
•
containing a high dust concentration (e.g.
sawdust).
•
with inflammable gas/dust.
Water cooling (IC3W7)
MS2N motors of size 07, 10 and 13 are available
as water-cooled designs. The cooling circuit of
the motor is designed with stainless steel. The
designation is done via the feature cooling mode
„L“ within the motor type code. The nominal data
are achieved at ambient temperatures of up to
40
°C.
Cooling system
The motor power loss P
V
transformed to heat
is dissipated using the coolant. External cooling
units are necessary to operate water-cooled
motors.
The cooling unit must be able to dissipated heat
of the motors at any time. If several motors are
operated on one cooling system, this applies
to the sum of the individual power losses. The
required coolant pressure must also be able to be
achieved at maximum volume flow.
NOTICE
The necessary cooling and pump performance
is calculated of the sum of connected motors
or heat input, the specified minimum flow and
pressure loss. The dimensioning of the cooling
system is in the responsibility of the machine
manufacturer.
About this pr
oduct
