Water Cooling (Ic3W7); Cooling System; Coolants - Bosch Rexroth IndraDyn S MS2N Operating Instructions Manual

MS2N Synchronous Motors
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.
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Water cooling (IC3W7)

MS2N motors of size 07 and 10 are available as water-cooled designs. The cool-
ing circuit of the motor is designed with stainless steel. The designation is done
via the feature cooling mode „L" within the motor type code. Nominal data is
reached at ambient temperatures of up to 40 °C.

Cooling system

The motor power loss P
ternal cooling units are necessary to operate water-cooled motors.
The cooling unit must be able to dissipated heat of the motors at any time. In
the case of several motors operating on one cooling circuit, this is valid for the
sum of each power loss. The necessary coolant pressure must be provided for
maximum volume current.
The occurring electro-chemical processes within the cooling system must be
minimized via selection of the materials. Do not combine different materials, like
copper, brass, iron, zinc and halogenated plastics (e.g. tubes and sealing made
of PVC).
Fix coolant ducts and check for their tightness in regular intervals.
Potential equalization
Connect all components within the cooling system (e.g. motor, heat exchanger,
pipe system, pump, pressure compensation container, etc.) with a potential
equalization. Do the potential equalization with a copper bus bar or copper wire
with an appropriate conductor cross-section.
Coolant ducts must not contact live parts. Please observe sufficient insulation
according to the regulations valid for the place of installation.

Coolants

The coolant must comply with certain criteria and treated accordingly
4-4 "Coolant characteristics" on page
chemical stabilization, an additive must be admixed to the cooling water. The se-
lected coolant additives (biocides, inhibitors) must comply with the materials in
the cooling system (e.g. copper, brass, stainless steel, etc.) and minimize the
micro-biological growth. Pay attention to environmentally friendly materials.
DOK-MOTOR*-MS2N*******-IT03-EN-P
transformed to heat is dissipated using the coolant. Ex-
V
16). To ensure corrosion protection and
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