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11
Maintenance
11.1
Repairing safety-relevant components
Safety technology is a fixed component of the device. A separate repair is not
possible. In case the device is defective, please send in the entire device. Spare
parts are not available.
11.2
Replacing drive components
11.2.1
Replacing the motor
When replacing motors, comply with the safety instructions in the chapter
"Safety instructions for electric drives and controls"!
The motor has to be replaced by a motor of an identical type. Only if the motor
is replaced by a motor of an identical type, is it ensured that all parameter
settings may remain unchanged. Moreover, it is not required to repeat the
acceptance test within the scope of the integrated safety technology.
1.
2.
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5.
6.
7.
8.
9.
11.2.2
Replacing the optional brake
When replacing optional brakes, comply with the safety instructions in the
chapter "Safety instructions for electric drives and controls"!
R911404905, Edition 02
Electric shock due to live parts with more than 50 V!
WARNING
Replacement may only be performed by personnel
trained and qualified to work on or with electrical equip-
ment.
If necessary, note down the last absolute value
Open the main switch
Make sure the main switch cannot be switched back on
Disconnect the plug-in connectors
When replacing the motor, cover the open mating sites of power lines
with protective caps if sprinkling with cooling liquid/lubricant or pollution
may occur (admissible pollution degree according to EN50178: 2).
Exchange the motor
To mechanically replace the AC servo motor, observe the instructions of
the machine manufacturer.
Reconnect the plug-in connectors
WARNING! Risk of accident caused by unintended axis motion! Servo axes
with indirect distance measuring system via the motor encoder lose their
position data reference when the motor is replaced!
Therefore, the position data reference to the machine coordinate system
has to be reestablished after the motor was replaced.
WARNING! Risk of accident caused by unintended axis motion! When
replacing the motor make sure that the encoder assignment of the axis
is not interchanged.
If replacing of the axis encoder assignment cannot be prevented due to
organizational measures, the axis has to be validated again after replacing
the motor.
Log the replacement in the safety-related documentation of the machine
(serial number, type, ...).
ctrlX SAFETY "SafeMotion"
Replacing drive components
Bosch Rexroth AG
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