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NOTE!
The inputs comply with the specification type 3 according to EN 61131-2.
Interfaces
Operation Manual
Safety Module for b maXX 5000
BM5-O-SAF-002/3
Document no.: 5.11016.03
95
11
Technical Data see
C.2 Technical Data safe inputs, STO-Inputs and Daisy-Chain-
11.3.3 Daisy-Chain Cascading
The Safety Module has 2 Daisy-chain cables on two channels.
The Daisy-chain-inputs and -outputs on two channels enable the module-independent
linking of safety functions. This is, e.g. necessary, if several or all drive axes of an
application must have the status STO (Safe Torque Off) or if a safe reduced speed is
necessary for all axes.
The fast STO-reaction saves time in contrast to a field bus solution.
Daisy-chain-inputs and -outputs can be parameterized with parameter tools. For
example, the safety function, which shall be enabled on the corresponding Safety
Module, in order to activate the Daisy-chain-input, can be set.
An open chain as well as a closed ring structure existing of several drive axes, can be
made with the Daisy-chain-inputs and -outputs. The Daisy-chain consists of two control
cables, which are wired as shown in
Daisy-Chain Example - Open Chain
An open chain is shown in the following figure. The safe inputs of the module axis 1 are
configured in such a way, that they enable . the safety functions STO (Safe Torque Off)
and SS1 (Safe Stop 19). Both safety functions are transmitted to the module axis 2, if an
accordant parameterization of Daisy-chain-output of module axis 1 was made. The
Daisy-chain-input of module axis 2 is configured, so that the function SS1 is operating.
The configuration of the Daisy-chain-output of module axis 2 makes sure that the safety
function SS1 is transmitted to axis 3. The Daisy-chain input of module axis 3 activates the
function SS2 (Safe Stop 2).
Figure 47:
Daisy-chain cascading - Example of an open chain
11.3.3.1 Daisy-Chain-Inputs
The Safety Module has two safe Daisy-chain-inputs on two channels.
Each Daisy-chain-input on two channels can be assigned to a safety function or the
Daisy-chain-input of the Safety Modules can be activated/deactivated with the
Summary of Contents for BM5-O-SAF-002
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