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Preparations for use
4.13 Transport and storage
Water drain holes (option L12)
Depending on the specific order, water drainage holes are provided in the bearing shields at
the DE and NDE in the foot area and opposite the regreasing system. Make sure that the
condensation can always drain away freely.
● Shaft heights 180 and 225: The plug that has been inserted into the water drainage holes
● Shaft height 280: There are no plugs in the water drain holes. The water must be able to
The water drain holes only function when the motor is mounted horizontally for types of
construction IM B3, IM B35 and IM B5.
NOTICE
Damage due to condensation
If the stator winding is damp, its insulation resistance is reduced. This can result in voltage
flashovers, which can destroy the winding. Condensation can cause rusting inside the
machine.
● Make sure that the condensation can always drain away freely.
4.13.8
Protect the cooling water system of water-cooled motors
When the units are delivered, the high-grade steel cooling-water pipe system is not filled with
cooling water.
● When you put the motor into storage after use, drain the cooling water ducts and purge
● For operation, add a maximum of 20 % to 30 % of an anti-freeze agent to the cooling water;
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allows the condensation to drain away. Do not remove the plug, otherwise the machine's
degree of protection will be affected.
drain away freely.
with air to ensure that they are completely empty.
use Antrifrogen N or Tyfocor, for example, as the anti-freeze.
NOTICE
Frost damage to the cooling circuit
Damage may be caused to the cooling circuit if the cooling water freezes.
If the ambient temperature falls below 0 °C during operation add anti-freeze to the cooling
water.
SIMOTICS M-1PH8 1PH818., 1PH822., 1PH828.
Operating Instructions 10/2017
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