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● Reliability:
For the application case, the stipulated C-standard applies to the design and
sizing of the brakes.
Table 13: Maximum allowed output current for holding brake according to
device and connection
Connection
XG03
XZ03
1)
refer to the configuration of the device.
8.4
Safety functions in special mode "Safe motion SMMx"
8.4.1
Safely-limited speed (SLS)
Safety function description
In the case of the safety function "Safely-limited speed", dual-channel mon-
itoring prevents the drive from exceeding the preset velocity thresholds
[P-0-3290.x.2 (x=1..16)].
Features
The safety function "Safely-limited speed" has the following features:
● Required optional safety technology module: The safety function can be
● Maximum safety level:
● Notes on parameterization:
R911404905, Edition 02
Safety functions in special mode "Safe motion SMMx"
– In addition to the static holding torque of the brake, the required dynamic
braking torque of the brake has to be considered. The dynamic braking
torque of the brake has a direct influence on the behavior of the axis in
the case of error and needs to be taken into account in the risk analysis.
– When selecting the brakes, it has to be taken into account that the con-
trol outputs are tested during operation. For this purpose, the outputs
are switched off for a short time (≤1 ms) and the brake is controlled. If
a very fast acting brake is used, it cannot be excluded that the brake is
temporarily released or applied.
The brake has to be approved for the maximum and minimum ambient tem-
peratures.
High electrical voltage! Danger to life, risk of injury by
WARNING
electric shock or serious personal injury!
During the time a safety function is active, power is not
removed from the motor; de-energize the drive before
working on the motor.
1)
Connection depends on the device type and the current rating. For details
Lethal injury and/or property damage caused by unin-
DANGER
tended axis motion or by deviation from the standstill
position!
Please comply with the safety instructions in the chapter
"Project planning instructions".
used in drive systems equipped with the optional safety technology module
"Mx".
The safety function is intended for safety-relevant applications up to
Category 3, PL d according to EN ISO 13849-1 or up to SIL 2 according
to EN 62061.
ctrlX SAFETY "SafeMotion"
maximum allowed output current
2 A
1 A
81 / 302
Bosch Rexroth AG
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