Function Description; Integrated Protection Mechanisms; Functions; System Reaction Time - Pilz PNOZmulti Mini Operating Manual

Function description

4 Function description
4.1

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.
4.2

Functions

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.
4.3

System reaction time

Calculation of the maximum reaction time between an input switching off and a linked out-
put in the system switching off is described in the document "PNOZmulti System Expan-
sion".
4.4

Diagnostics

The status and error messages displayed by the LEDs are saved in an error stack. This er-
ror stack can be read out from PNOZmulti Configurator via the USB interface.
4.5

Block diagram

T0M20
IM0 IM1
Operating Manual PNOZ mm0p-T
1002704-EN-02
T1M21 T2M22 T3M23
Configurable
output
Configurable
input/output
IM2 IM3 IM16 IM17 IM18 IM19
O0 O1
O2 O3 24 V 0 V
24 V 0 V
Input
I4 I5 I6 I7 I8 I9 I10 I11
A1 A2
=
=
Power
I12 I13 I14 I15
12