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Hardware: PSR-TRISAFE-S safety module
103503_en_03 PHOENIX CONTACT
3-1
3 Hardware: PSR-TRISAFE-S safety module
3.1 Device description
The PSR-TRISAFE-S safety module is a configurable safety controller with 20 digital safe
inputs, which enable the connection of a maximum of 20 single-channel or 10 two-channel
safe sensors or control devices.
The four digital safe outputs, O0 to O3, are controlled after evaluating the incoming signals
according to the configuration, which was created with the SAFECONF configuration
software and downloaded to the PSR-TRISAFE-S safety module via USB interface.
The PSR-TRISAFE-S safety module also has two ground switching outputs, O0- and O1-,
which can be used for example to switch off a contactor connected to the safety module
either via the output or via ground. Use of the ground switching outputs increases the
shutdown protection and cross-circuit protection of the safety circuit.
In addition, the safety module has four non-safety-related digital alarm outputs (M0 to M3),
which can be used for example to control a standard PLC or signaling units.
The two asynchronous test pulses at T0 and T1 provide safe cross-circuit detection at the
inputs of the safety module, as described in "Error detection in I/O devices" on page 2-8.
All connection terminal blocks are plug-in. The individual terminal block bases are
mechanically keyed to prevent incorrect connection. The PSR-TRISAFE-S safety module is
available either with screw connections (on the left in Figure 3-1) or with spring-cage
connections (on the right in Figure 3-1).
Figure 3-1 PSR-TRISAFE-S safety module with screw connection (left) or with spring-
cage terminal blocks (right), on 35 mm EN DIN rail
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