D3-DA 3xx/x
Safety functions
Project engineering manual V1.07
73
© KEBA
Information
It is only allowed to connect brakes, contactors or relays with a minimum
holding voltage ≥ 5 V to the brake driver outputs on the system. The switch-
ing elements used must be designed as per the required PL and category
in accordance with EN ISO 13849-1 or SIL in accordance with EN 61508 /
EN 62061 or have appropriate safety-related approval. The release of the
brake can be delayed by up to 200 ms by the internal diagnostics on the
brake output.
Caution
If the brake does not release due to a failure, the safety function may be lost
due to wear or irreparable damage to the brake. The failure "Brake does not
release" must be taken into account during the design of the brake(s) and
the validation.
The failure "Brake does not engage" must be excluded by one of the follow-
ing measures:
●
Usage of a safety brake with a manufacturer's specification that ex-
cludes this failure with the necessary safety integrity.
●
Definition and validation of a second means of braking in the application.
For instance this feature can be achieved by using two brakes where
each brake is in itself capable of applying the necessary braking torque.
In addition, the function of the brakes must be validated regularly.
8.2.1
Configuration SBC safety function
Via DIP switch (S-ADR) can be configured, if the safety function SBC should
be activated additional to the safety function STO.
Settings
Description
Function
affect to
SBC deactivated
(Default setting)
STO1:
STO axis 1-3
SBC deactivated
STO2:
Without function
SBC activated
STO1:
STO axis 1-3
SBC axis 1-3
STO2:
Without function
