Before Startup; Motors With Reinforced Bearing - SEW-Eurodrive DR2..71/BE Series Operating Instructions Manual

INFORMATION
For using DR..250 – 280, DRN250 – 280 motors with BE brake and encoder, observe
the following information:
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6.1

Before startup

Prior to startup make sure that:
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6.2

Motors with reinforced bearing

NOTICE
Damage to bearings due to impermissible heating of bearing and motor.
Bearing damage.
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Only operate the brake as holding brake.
The brake may only be applied when the speed is ≤ 20 min
please contact SEW‑EURODRIVE.
Emergency stops from higher motor speeds are permitted.
The drive is undamaged and not blocked.
Any transport locks have been removed.
The measures stipulated in chapter "Preliminary work after longer periods of stor-
age" (→ 2 32) are performed after storage periods longer than 9 months.
All connections have been made correctly.
The direction of rotation of the motor/gearmotor is correct.
– Motor rotating clockwise: U, V, W (T1, T2, T3) to L1, L2, L3
All protective covers are installed correctly.
All motor protection equipment is active and set for the rated motor current.
There are no other sources of danger.
Loose elements like keys are appropriately secured.
The brake is not manually released.
– The set screw of /HF option is loosened correctly.
– The hand lever of the /HR option has been removed and correctly attached to
the stator using the designated clamps.
Do not operate cylindrical roller bearings without overhung load.
Startup
Before startup
-1
. For higher speeds,
Operating Instructions – AC Motors
6
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