Hoyer Y2E2 - Operation and Cooling; Operational Considerations & Checklist

32
Motor
Manual
Figure 4 Minimum distance to wall/objects
IEC frame size Minimum distance from fan cover to wall (X)
in mm
63 35
71 35
80 40
90 45
100 50
112 55
132 65
160 80
180 90
200 100
225 120
250 125
280 140
315 155
355 175
400 215
450 225
500 260
560 290
630 325
Table 15 Minimum distance from wall or objects
For special motors with water cooling, the ambient tem-
perature must be at least +5°C to avoid motor damage due
to water freezing in the cooling tubes. This also applies to
these motors in storage. Alternatively, the cooling tubes can
9 Operation
9.1 Considerations
Safety equipment must be used during installation and op-
eration at the site. The motor is only intended for fixed in-
stallation and use by qualified personnel. Motors must only
be used according to the rated nominal values on the motor
nameplate.
9.2 Checklist
Check the following before powering on the motor:
• All mechanical and electrical connections are ready for
start-up.
• The insulation resistance values correspond to the data
in Section 4.3.
• The earthing connection is fitted correctly.
• Couplings and transmissions are sufficiently aligned to
allow the machinery to run smoothly.
• The motor is operating within the permissible ambient
temperature range.
• The operation data correspondents to the nameplate.
• The monitoring equipment is connected correctly and
fully functional.
• Make sure the motor is not running faster than the per-
missible speed for the application.
• The output power corresponds to the duty type.
• Screws and bolts are fitted and tightened properly.
• The rotor can turn in response to an external force
without applied power.
• Protective parts are removed from the motor shaft.
• The external fans rotate in the specified direction.
• All brakes/switches are fully functional.
9.3 Cooling
Check the following with regard to cooling:
• The motor has sufficient airflow.
• No nearby objects radiate additional heat.
• Direct sunlight does not add additional heat.
For flange mounted motors (e.g. B5, B35, V1), make sure
that the construction of the machinery allows sufficient air
flow along the outer surface of the motor housing. Table 13
shows the minimum distance from the motor fan cover to
the wall or other objects (see Figure 4 for reference).