Siemens 6SL3210-1SB11-0UA0 [274/318] Recommendations

Siemens 6SL3210-1SE14-1UA0 [274/318] Recommendations
Cooling circuit and coolant properties
10.1 Cooling circuit requirements
Manual
274 Manual, 01/2011, 6SL3097-4AC10-0BP2
Requirements
A particle filter (particle size < 100 µm) must be installed in the cooling circuit's supply line
to prevent foreign particles from being washed in.
Mixed installations should be avoided wherever possible.
The permissible pressures in the cooling system must be observed.
Cavitation must be prevented in the cooling system.
Equipotential bonding must be provided between the components in the cooling system.
The customer must take measures to protect the devices against condensation
An anti-corrosion agent and, if necessary, a biocide should be mixed into the coolant.
If there is a risk of frost, preventive measures must be taken during operation, storage,
and transportation (e.g. emptying and blowing out with air, additional heating).
The requirements of the coolant in terms of its properties (temperature, chemical
characteristics, etc.) must be observed.
Recommendations
To ensure mechanical decoupling, the devices should be connected by means of hoses.
To prevent blockages and corrosion, you are advised to install a flushback filter in the
circuit (so that residues can be rinsed out when the system is running).
The power units should be connected to the cooling circuit by means of shut-off fittings so
that they can be disconnected from the cooling circuit for servicing or repair without
having to empty the entire cooling system. A cooling water hose (EPDM) can be used to
connect the shut-off fitting to the power unit. The coolant connections must never be
closed if cooling liquid is still present in the device. Reason: If the cooling fluid expands
due to heat, the pressure can build up beyond permissible levels and cause the heat sink
to burst.

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