SEW-Eurodrive DR 315 Series, Руководство по эксплуатации

Страница: 177 / 268

7
Inspection/maintenance
Inspection/maintenance work diagnostic unit /DUB
Operating Instructions – AC Motors
177
7.7.4 Inspection/maintenance of the diagnostic unit /DUB with microswitch for wear monitoring
1. Check the working air gap according to chapter "Setting the working air gap of
BE05 – BE122 brakes" (→
2
160) and adjust it if necessary.
2. Screw the hex head screw [560] against the actuator of the microswitch [555] until
it trips (brown, blue contacts closed).
While screwing, install hex nut [561] to eliminate the longitudinal play from the
thread.
3. Screw the hex head screw [560] further in from the actuated switching point, so
that the microswitch [555] remains activated (contact brown-blue closed). Depend-
ing on the brake size, screw the hex head screw [560] further in by the specified
angle to set the wear point:
Brake Standard brake
without safety encoder
With safety brake or
safety encoder
BE2 135° 135°
BE5 270° 180°
BE11, BE20, BE30,
BE32, BE60, BE62 360°
BE120 270° 135°
BE122 180° 90°
• After reaching the respective end position, tighten the hex nut [561] against the
bolts [557]/[945] while holding the hex head screw [560] to keep it in the correct
position.
• Check if the cables are routed firmly and if they require additional fastening in form
of cable ties [1109]. Make sure the cables are routed in a sufficient distance to the
fan wheel of the motor.
• Install the previously removed motor parts again.
25851535/EN – 02/2019