SEW-Eurodrive DR63 Series - Page 19

Operating Instructions – Explosion-Proof AC Motors DR63/eDR63, DVE250/280
19
4
Motor installation notes
Mechanical Installation
• Make sure that there is sufficient clearance around the motor/brakemotor to provide
for adequate cooling, and that the motor does not draw in warm air from other units.
Observe the following minimum clearance:
• Balance components for subsequent mounting on the shaft with a half key (motor
shafts are balanced with a half key).
• If you have used the hand lever of the self-reengaging manual brake release during
startup, you must remove the lever again for regular operation. A bracket is provided
for storing the lever on the outside of the motor housing.
4.3.1 Installation in damp locations or outdoors
• Use suitable cable glands for the incoming cable (use reducing adapters if neces-
sary) according to the installation instructions.
• If possible, arrange the terminal box in such a way that the cable entries are pointing
downwards.
• Seal the cable entry properly.
• Thoroughly clean the sealing surfaces of the terminal box and the terminal box cover
prior to reassembly. Replace any brittle seals!
• If required, touch up the corrosion protection (especially at the eyebolts).
• Check the degree of protection.
• Protect the shaft against corrosion using a suitable anti-corrosion agent.
Motor type h in mm
eDR63, DR63 15
DVE250
40
DVE280
h
INFORMATION
• If using belt pulleys:
– Only use belts that do not build up an electrostatic charge.
– Do not exceed the maximum permitted overhung load; for motors without gear
units, see chapter "Overhung loads (page 51)".
• Motors in vertical mounting position (e.g. M4/V1) are equipped with a canopy /C as
standard.
On request, the motor can be delivered without canopy. In this case, you have to
install a cover when you install the drive in the plant/machine in order to prevent
objects from falling into the ventilation openings. Observe the requirements accord-
ing to EN / IEC 60079-0 and EN / IEC 60079-7. This cover must not obstruct the
cooling air supply.
• In mounting positions with the motor output shaft pointing upwards (e.g. M2/V3), a
suitable cover must prevent small objects from falling through the fan guard, see
also EN / IEC 60079-0. This cover must not obstruct the cooling air supply.