ABB High dynamic performance HDP Serie Manuel D'installation, D'utilisation Et De Maintenance page 20

ENGLISH
In addition, all the requirements of this manual and any other related instructions and standards must be followed.
WARNING:
WARNING:
1.5.2 Cooling
HDP series motors may be cooled in different ways depending on their type and frame size: there are both liquid
cooled (M3LT) and air cooled motors (M3ET, M3FT).
1.5.2.1 Liquid cooling (M3LT)
WARNING:
Should the motor be used or stored in environments with the risk of sub-zero temperatures, freezing of the water
inside the motor must be prevented. This can be done either by emptying the water jacket or by using anti-freeze
additives.
Before emptying the water jacket, protect it with a corrosion-protective emulsion, e.g., Esso Cutwell 40, Shell Dromus
Oil BS, or equivalent, in accordance with the instructions given by the emulsion manufacturer. If the motor has been
standing for a long period of time with no water, ensure that water can circulate freely before using the motor again.
Remove possible rust blockages by dissolving them with oxalic acid:
1. Empty the frame of water.
2.
Fill the frame with water mixed with oxalic acid (100 g/liter).
3. Lett he acid take effect for approximately 10 minutes.
4.
Empty the frame and wash it with pressurized water.
5. Repeat the treatment if necessary.
Cleaning the motor cooling system helps to restore system efficiency. ABB recommends using regular flushing and
cyclonic or magnetic filters, which should be regularly maintained. Flushing can be done as described above.
Check that the water in the system is neutral or near neutral pH after flushing.
In motors type M3LT, waste heat is drawn off by water circulating inside the motor housing. The water circulates in
the axial direction in the frame corners and flows out through an outlet.
Motor frame sizes 80–180 have by default one water inlet and one outlet with different thread diameters depending
on the FS, positioned at the ND-end top corners (see figure below).
Table 4 Motor frame sizes and consecutive thread diameters
FS
80
100
132
160
180
NOTE:
MOTORS EQUIPPED WITH A BRAKE SHOULD NOT BE RUN BEFORE THE BRAKE IS
RELEASED BY THE CORRECT VOLTAGE SUPPLY. NOT FOLLOWING THIS PROCEDURE
WILL CRITICALLY DAMAGE THE BRAKE.
IGNORING ANY OF THESE INSTRUCTIONS OR NEGLECTING THE MAINTENANCE
OF THE APPARATUS MAY JEOPARDIZE THE SAFETY OF THE MACHINE AND THUS
PREVENT IT FROM BEING USED.
DO NOT USE ANY COOLANT OTHER THAN WATER OR A MIX OF WATER AND
GLYCOL!
Read the cooling water instruction plate as well as the markings for inlet and outlet
pipes on the motor!
Thread
G 1/8"
G ¼"
G 3/8"
G 3/8"
G 3/8"
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