System Manual ESM-F
4
Function
The modules in the
ESM-F
system are used for the evaluation of the safety com-
ponents connected and the safe interruption of a safety circuit.
The base unit
ESM-F-B...
is part of the
ESM-F
system from EUCHNER. The
ESM-F
system comprises at least one base unit.
The base unit has several inputs for the connection of safety components. The
safety contacts are switched as a function of the input signals. Subsequent parts
of the safety circuit can be monitored using a feedback loop.
Different device states can be signaled using monitoring outputs.
The base unit can be expanded with additional inputs and outputs using expansion
modules. The individual modules are connected together using a special connector
system. Power is supplied and safety signals are sent via the connector system.
If one of the safety components (e.g. an emergency stop) is actuated, the base
unit opens its contacts immediately. If additional output modules are used, these
also receive a signal to open their contacts. The system is designed such that
failures will not result in the loss of the safety function. The occurrence of failures
is detected by cyclic self-monitoring at the latest on the next demand to close
the safety contacts (e.g. on starting). The system can be started either manually
using a start button or automatically using a jumper. Safety groups with varying
safety levels can be formed using appropriate configurations (see section
Forming
safety groups
).
