Bosch Rexroth IndraDrive Mi Project Planning Manual page 104

96/152 Bosch Rexroth AG | Electric Drives
Notes on Project Planning
DANGER
Brake Control
Functional Check
Electrically Releasing Holding
CAUTION
and Controls
Dangerous movements! Danger to personnel from falling or dropping
axes!
⇒ Observe supplementary standards and guidelines. For European coun‐
tries:
- DIN EN 954 / 03.97 Safety-related parts of control systems
- Information Sheet for vertical axes
Published by the institution for statutory accident insurance and prevention,
technical committee iron and metal II:
Süddeutsche Metall-Berufsgenossenschaft
Fachausschuss Eisen und Metall II
Wilhelm-Theodor-Römheld-Str. 15
55130 Mainz
USA: See National Electrical Code (NEC), National Electrical Manufacturers'
Association (NEMA), as well as local engineering regulations.
Generally, the following applies: Observe the national regulations!
⇒ The serially delivered motor holding brake is not sufficient to guarantee
personal safety!
⇒ Personnel safety must be achieved using higher-ranking, fail-safe proce‐
dures.
⇒ Dangerous areas should be blocked off with protective fences or grids.
⇒ Additionally secure vertical axes against falling or dropping after switching
off the motor power by, for example:
- Mechanically securing the vertical axes
- Adding an external braking/arrester/clamping mechanism or
- Ensuring sufficient equilibration of the vertical axes
- Other appropriate measures
The control electronics controls the integrated brake which excludes user er‐
rors.
For the purpose of commissioning, release the holding brake via
connection point X2 by connecting the contacts X2.1 and X2.2.
Before commissioning and in operation, check the brake for its function in pe‐
riodic intervals (e.g. every 8 hours) with an appropriate brake check. By apply‐
ing a defined torque to the motor, check whether the brake has completely
released. For further information and data, see the respective Functional De‐
scription of the firmware for the drive controller.
The electrically releasing holding brake is used to hold the axes at a standstill
Brake
and when the drive enable signal is off. When the supply voltage fails and the
drive enable signal has been switched off, the electrically releasing holding
brake will automatically apply.
Danger of damage!
Do not use the holding brake as a service brake for moving axes.
Rexroth IndraDrive Mi | Project Planning Manual