Datasheet

Relays for functional safety
Safety relays PNOZsigma
PNOZ s50
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
903
Output test
Outputs that are switched on are checked via regular off tests.
} Test pulses for outputs that are switched on: see technical details
} Outputs that are switched on are switched off for the duration of the test pulse.
} The load must not switch off because of the test.
} The switch-off tests cannot be turned off.
Dual-pole outputs that are switched off are checked via regular on tests.
} The test pulses switch the positive pole of the output. The load must not switch on be-
cause of the test.
Testing for shorts
} A test is regularly carried out to check for shorts between the outputs.
Status display, configuration and messages
Overview
The configuration is set using the device's rotary knob with pushbutton and is then dis-
played. Access to the configuration menu is password-protected.
The following device properties can be configured:
} Supply voltage to the power circuits
} Signals to the outputs of the power circuits:
– Overexcitation time
– Reduced voltage
} Feedback loop:
– Max. ventilation and application time
– High or low logic (N/O or N/C)
– Evaluation of test pulses
} Offset (start value) for the number of operations
Additional information on the display:
} Status display
} Number of operations
} States of inputs and outputs
} Information on the device
} Software versions
} Error messages