PNOZ 2
Operating Manual PNOZ 2
22151-EN-05
7
Unit features
} Positive-guided relay outputs:
– 3 safety contacts (N/O), instantaneous
– 1 auxiliary contact (N/C), instantaneous
} Connection options for:
– E-STOP pushbutton
– Safety gate limit switch
– Start button
} LED display for:
– Supply voltage
– Switch status of the safety contacts
} See order reference for unit types
Safety features
The safety relay meets the following safety requirements:
} The circuit is internally redundant with built-in self-monitoring.
} The safety device remains effective in the case of a component failure.
} The correct opening and closing of the safety device relays is tested automatically in
each on-off cycle.
Block diagram/terminal configuration
13
14
24 34
42
23 33 41
A1 A2
X1
T11 T12
X2
T33 T34
*Insulation between the non-marked area and the relay contacts: Basic insulation (over-
voltage category III), Protective separation (overvoltage category II)
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