Bosch Rexroth MS2N, Operating Instructions Manual

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Information sheet no. 005 "Gravity-loaded axes (vertical axes)" published by:
DGUV Fachbereich Holz und Metall (German Employer's Liability Insurance As-
sociation Wood and Metal)
Determine the safety requirements valid for the case of application and observe
the safety requirements during plant design. Comply with national regulations at
the installation site of the system.
Holding brake - commissioning and maintenance instructions
That is why the function and the holding brakes have to be checked in regular
intervals and malfunctions must be removed in an appropriate period.
The braking effect can be reduced by:
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Corrosion on friction surfaces, vapor and sediment
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Over voltages and too high temperatures
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Wear (increasing the air gap between armature and pole)
The holding brake functionality can be checked mechanically by hand (torque
wrench) or automatically by means of the software function.
Manually check holding torque (M4)
1. Disconnect the motor from the power supply and secure it against being
switched on again.
2. Measure the transferable holding torque (M4) of the holding brake with a
torque wrench.
Check holding torque (M4) automatically
1. Start the "P-0-0541, C2100 Command Holding system check" The efficiency
of the holding brake and the opened state are checked by starting the rou-
tine.
If the holding torque (M4) is not achieved, the resurfacing routine can be
used to reconstitute the holding torque. Contact the Rexroth service de-
partment.
4.2.9 Flange exactness
The properties concentricity, run-out and alignment are defined in the flange ac-
curacy (N, R). By default, MS2N motors are equipped with tolerance N. From
frame size 06, the optional design tolerance R is available. The labeling is done
in the motor type designation. (See also chapter 4.2.7 "Output shaft balancing
and extension elements" on page 22 ).
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About this product MS2N Synchronous Servomotors
Bosch Rexroth AG R911347581_Edition 04