1.10
Holding Brake Commissioning and Maintenance
Danger of life or material damage, danger of
explosion due to inappropriate use!
WARNING
●
Any commissioning and maintenance works must only be carried out in
non-explosive environments. The environment must be free from explo‐
sive gas or dust.
●
Before commissioning and maintance works are carried out, the rooms
are to be ventilated, if applicable, in order to remove any existing explo‐
sive gas.
In order to ensure proper functioning of the holding brake, it must be checked
before the motors are commissioned. The test as well as the resurfacing may
be carried out "mechanically by hand" or "automatically by means of the soft‐
ware function".
Checking and Resurfacing of
Holding Brakes by Hand
Measure the holding torque (M4) of the holding brake. If necessary, resurface
the holding brake.
Measuring the Holding Torque (M4) of the Holding Brake
1.
De-energize the motor and secure it against re-energization.
2.
Measure the transferable holding torque of the holding brake with a tor‐
que wrench. For holding torque (M4) refer to the technical data.
If the holding torque (M4) is achieved, the motor is ready for assembly.
If the holding torque (M4) is not achieved, the subsequent resurfacing-
process can be used to reconstitute the holding torque.
Resurfacing the Holding Brake
1.
At closed holding brake, turn the output shaft by hand, e.g. with the help
of a torque wrench, by about 5 revolutions.
2.
Measure the holding torque (M4).
If the holding torque (M4) is achieved, the motor is ready for assembly.
If the specified holding torque (M4) is not achieved after several resur‐
facing processes, the holding brake is not operable. Please, contact the
Rexroth Service.
Checking and Resurfacing of
Holding Brakes by means of the
Software Function
Checking the Holding Torque (M4) via P-0-0541, C2100 Command
Holding system check
1.
The efficiency of the holding brake and the opened state are checked by
the control device by starting the routine "P-0-0541, C2100 Command
Holding system check".
If the holding brake is operational, the drive is in an operational state af‐
ter the routine was run through. If the braking torque is too low, the con‐
trol device outputs a corresponding message.
The brake test can also be carried out cyclically in the framework
of a preventive maintenance.
Restoring the Holding Torque (M4) by means of the Software Function
The following possibilities are available:
DOK-MOTOR*-MSK*EXGIIK3-IT04-EN-P
Bosch Rexroth AG
21/37
MSK Motors Operation in Potentially Explosive Areas ATEX Directive 2014/34/EU
Instructions
