Pilz PMCprimo DriveP.06/AA0/4/0/0/208-480VAC - Manual (Page 17)

Function description
Operating Manual PMCprotego S2­2(­C)
1002529­EN­02 17
The table below shows which outputs signal the status of which safety function.
Output
In­
ternal
error No safety
function
activated
SS1 SS2 SOS SLS SSR SDI SLI
STO Acknow­
ledge x x x x x x x x x
SSA Safe Stand­
still Acknowledge ­ ­ ­ x x ­ ­ ­ x
SDA Safe Direc­
tion Acknowledge ­ ­ ­ ­ ­ ­ ­ x ­
SRA Safe Range
Acknowledge ­ ­ ­ ­ ­ x x ­ x
Ready ­ x x x x x x x x
Signals at the output
} “0” signal (0 V) at the output:
– Output is high impedance
– No current to the load
– Safety function not activated
} “1” signal (+24 V) at the output:
– Output is low impedance
– Current is supplied to the load
– Safety function activated
Supply voltage
} 24 VDC connection to supply the safety card's digital outputs
4.2.2.2 Output test
The outputs are tested regularly:
} 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.
} Outputs that are switched off are checked via regular on tests.
– Test pulses for outputs that are switched off: see technical details
– Outputs that are switched off are switched on for the duration of the test pulse.
– The load must not switch on because of the test.
Testing for shorts
} A test is regularly carried out to check for shorts between the outputs.