Installation conditions
8LS...-3 user's manual V2.50 267
4 Installation conditions
Before every commissioning procedure, the motor must be checked by qualified personnel. The check must include
the proper condition in terms of mounting and installation, the installation conditions and safe operation.
Operating conditions 8LSA 8LSC 8LSO 8LSP
Rating class, operating mode per EN 60034-1 S1 - Continuous operation
Ambient temperature during operation -15°C to +40°C
Reduction of nominal and stall current as well as
nominal and stall torque at temperatures above
40°C
10% per 10°C
Max. ambient temperature during operation +55°C
1)
Reduction of nominal and stall current as well as
nominal and stall torque at installation elevations
starting at 1,000 m above sea level
5% per 1000 m
Maximum installation elevation 2000 m
2)
Max. flange temperature 65°C
EN 60034-5 protection (IP code):
Degree of protection with optional oil seal (DIN
3760):
IP64
IP65
IP64, fan IP20
IP65, fan IP20
IP64
IP65
IP64, fan IP20
IP65, fan IP20
Type of construction and mounting arrangement
per EN 60034-7 (IM code)
Horizontal (IM3001)
Vertical, motor hangs on the machine (IM3011)
Vertical, motor stands on the machine (IM3031)
1)
Continuous operation of the servo motors at an ambient temperature of 40°C to max. 55°C is possible, but this results in premature aging.
2)
Requirements that go beyond this must be arranged with B&R.
4.1 Mounting type and cooling
Ensure unobstructed air circulation and cooling so that no heat accumulation can build up on the motor.
Preferably attach the motor with the motor flange (1), which also serves as a cooling surface, directly on the
machine.
If the motor (8LSO / 8LSP) is only mounted with the mounting base (2) and not with the mounting flange, the
continuous power is reduced in S1 operation.
Externally cooled motors (8LSC / 8LSP) pull in cool air at the B-side flange and that air flows between the motor
housing and the fan side panel and leaves the motor at the A-side flange.
For externally cooled motors, keep a minimum distance (3) of ≥0.5xD to other components on all sides (D corre-
sponds to a height of the side panel). A sufficient ventilation cross section (DxD) for cool air must be ensured;
an intake of already heated air or recirculation is not permitted.
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