Everest XCR - Product manual |
Wiring and Connections
INGENIA | 2020-10-01 00:04:38
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Wiring for a solution with panic button / emergency stop. When using this circuit ensure the difference between
STO_1 and STO_2 signals changing the state is less than 1.4 s to prevent an abnormal situation. When using various
protective switches connect them in series.
Wiring for a simplified version using the Everest-XCR +5V_out supply is shown next (no need for 24 V supply). Note
that as the 5V_OUT is connected to other circuits like feedbacks and isolation on STO inputs is lost. The example
emphasizes the recommended connection when using various safety elements. Redundant wiring will improve
reliability.
STO1 and STO2 signals should always change at the same time with a maximum of 1.4 s mismatch. This is
necessary to have 2 channel redundancy and allow diagnostics, as a mismatch will cause an abnormal
fault.
In order to ensure this, do
not
add big capacitors (> 100 µF) in parallel to the STO inputs as this may cause
faults during activation or deactivation of the STO.
