General Information - Lenze g500-B Manual

General information

Thermal power limit
The thermal power limit, defined by the heat balance, limits the permissible continuous
gearbox power. It is affected by
the churning losses in the lubricant. These are determined by the mounting position and
•
the circumferential speed of the gears
the load and the speed spectrum.
•
the ambient conditions: temperature, air circulation, input or dissipation of heat via shafts
•
and the foundations.
NOTICE
A thermal check with the Drive Solution Designer (DSD) or contacting your Lenze
representative is required if
▶ the input speed n
> 1500 rpm is fallen below in case of the gearbox ratios given in the
1
following.
▶ the drive speeds mentioned in the following will be exceeded as a function of the mounting
position. For a short period of time up to 5 min, 30 % higher speeds are permissible.
▶ the ambient temperature is predominantly above +30 °C.
Gearboxes
g500-B1500 ... B4300
Motor
m850-S120
m850-S140/S190
Possible ways of extending the application area
Shaft sealing ring made of FKM material/Viton (option)
•
Reducing the lubricant amount (after consultation with Lenze)
•
Cooling the geared motor by air convection on the machine/system
•
Mounting position M1
4000 rpm
3000 rpm
Information on project planning
Ratio i
≤ 50
Mounting position M3, M5, M6
3500 rpm
2600 rpm
General information
Mounting position M2, M4
3000 rpm
1500 rpm
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