Siemens SIMATIC S5 1P 243, Operating Instructions & Installation Instructions

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● The rotor can spin without coming into contact with the stator.
● The bearing insulation is not bridged.
● Appropriately configured control and speed monitoring functions ensure that the the
permissible speeds specified on the rating plate cannot be exceeded.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are fully functional.
Force-ventilated motors
● All external fans fitted are ready for operation and have been connected so that they rotate
in the direction specified.
● The flow of cooling air is not impeded.
Motors with water jacket cooling
● Make sure that the cooling-water circuit functions correctly before you commission the
water-cooled machine.
● Do not switch the machine on until the cooling-water circuit is in operation. Ensure that the
cooling-water circuit remains in operation until the machine has come to a complete
standstill.
● Optionally, depending on the order, the motor has PTC thermistors that switch off the motor
when the cooling-water circuit fails.
● The openings for the inlet and outlet are at the motor enclosure.
● Vent plugs are optionally provided for the water chamber at the frame. Vent the water
chamber when filling for the first time and at regular intervals.
● Use only clean, non-aggressive cooling water with a maximum sediment content of 10 mg/
l.
● In order to avoid the increased formation of condensation, make sure that the inlet
temperature of the cooling water is at least 20° C.
● Refer to the plates on the machine for the permissible inlet and outlet temperatures, the
maximum pressure and the required amount of cooling water.
● If you operate the machine with a cooling-water temperature below 0° C, antifreeze must
be added to the water because of the reduced cooling effect. You must contact the Service
Center.
Electrical connection
● The grounding and equipotential bonding connections have been made correctly.
● The machine is connected so that it rotates in the direction specified.
Commissioning
7.1 Checks to be carried out prior to commissioning
LOHER CHEMSTAR 1PS5
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Operating Instructions 03/2014