Pilz PNOZ mm0p-T - Manual (Page 12)

Function description
Operating Manual PNOZ mm0p-T
1002704-EN-01
12
Function description
Device properties
Integrated protection mechanisms
The relay conforms to the following safety criteria:
} The circuit is redundant with built-in self-monitoring.
} The safety function remains effective in the case of a component failure.
} The safety outputs are tested periodically using a disconnection test.
Operation
The function of the safety system's inputs and outputs depends on the safety circuit created
using the PNOZmulti Configurator. A chip card is used to download the safety circuit to the
base unit. The base unit has 2 microcontrollers that monitor each other. They evaluate the
input circuits and switch the outputs accordingly.
The LEDs indicate the status of the safety system plus the inputs and outputs.
The online help on the PNOZmulti Configurator contains descriptions of the operating
modes and all the functions of the PNOZmulti safety system, plus connection examples.
Block diagram
=
Power
A1 A2
=
Input
US
B
IM1 I8 I5 I11 I4 I9 I12 I13 I14 I15 I7 I6 I10 IM2 IM0 IM3 IM16 IM18 IM17 IM19
Configurable
input/output
Configurable
output
24 V 0 V T1M21 O2 O0 O1 O3 T2M22 T3M23 T0M20
24 V 0 V
Diagnostics
The status and error messages displayed by the LEDs are saved in an error stack. This
error stack can be read out from PNOZmulti Configurator via the USB interface.
4
4.1
4.1.1
4.1.2
4.1.3
4.1.4