Pilz PNOZ S4 Safety Relay Configuration

Pilz PNOZ S4 Safety Relay Configuration

Summary

PNOZ S4 is a best-selling safety relay in the PNOZsigma series from Pilz. This product is easy to install, has rich functions, and supports a variety of safety circuit configurations. It is equipped with a variety of wiring methods for quick integration and is widely used in industrial safety scenarios such as emergency stop, safety door control, and light curtains.

PNOZ S4 User Guide

PNOZ S4 is a best-selling safety relay in the PNOZsigma series from Pilz. This product is easy to install, has rich functions, and supports a variety of safety circuit configurations. It is equipped with a variety of wiring methods for quick integration and is widely used in industrial safety scenarios such as emergency stop, safety door control, and light curtains.
Type
PNOZ s1
PNOZ s2
PNOZ S3 
PNOZ s4
PNOZ s4.1
E-STOP
√
√
√
√
√
Safety gate
√
√
√
√
√
Light curtain
√
√
√
Performance level (PL)
c
e
e
e
e
Safety integrity level (SIL) CL
2
3
3
3
3
Output contacts (safe)
2
3
2
3
3
Width in mm
12.5
17.5
17.5
22.5
22.5
Special approvals
-
-
-
-
Burner control/
burner management EN 50156-1
gai dao zhe Next, we will briefly introduce the parameter settings of the PNOZ X.8P safety relay.
Pilz PNOZ X safety relays

Basic description of LED indicator function

Text description
State
Functional Description
PWR
Always on
Power status indicator
CH.1
Always on
Input circuit of channel S12 is closed
CH.2
Always on
Input circuit of channel S22 is closed

Terminal Function Description

Terminal Function Description
Terminal number
Functional Description
A1、A2
power supply
S11、S52
Safety input channel 1
S21、S22 
Safety input channel 2
S12、S34
Startup circuit (reset mode)
13、14
Safety contacts
23、24
Safety contacts
33、34
Safety contacts
41、42
Auxiliary contacts
The terminal arrangement can refer to the figure above.

Specific description: 


Single channel operation

Input circuit has no redundant design a

nd can detect ground faults in the start-up circuit and input circuit.

Dual-channel operation

1. Short circuit detection between contacts (selectable according to actual situation)
2. Redundant input circuit is adopted to detect ground fault of start circuit and input circuit, as well as short circuit of input circuit and monitored start circuit.
3. Short circuit detection between contacts with short circuit detection between contacts: Based on the above functions, a short circuit detection function between the input circuit contacts has been added.

Startup mode

1. Automatic start: When the input circuit is closed, the unit is directly activated.
2. Manual start: The unit is activated only when the input circuit and the start circuit are closed at the same time.

Note: Some of the information in this article is referenced from Pilz brand public information, which is intended to share industry technology and interpret products. The copyright belongs to the original company and will be deleted if infringed.