Pilz PDP67 F 4 code module safety installation and fault diagnosis guide

In industrial automation sites, the safe and reliable transmission of safety signals is the core of ensuring the safety of equipment and personnel. When old security distributed modules (such as some discontinued models) fail or high protection level security input/output nodes need to be configured for new devices, the Pilz PDP67 F 4 code series modules (including standard and VA types) provide a passive allocation solution for IP67 protection level. This article is aimed at on-site engineers, combining the hardware structure, wiring rules, serial applications, and typical troubleshooting of the module to help you quickly grasp the deployment and maintenance points of the module.

Product positioning and applicable scenarios

The Pilz PDP67 F 4 code module (order number 773603) and its stainless steel nut version PDP67 F 4 code VA (order number 773613) are a decentralized passive distributor. Its design goal is to centrally connect Pilz's PSENcode, PSENslock, PSENini and other safety sensors to Pilz safety assessment equipment (such as PNOZmulti or PSS series) in harsh industrial environments (humidity, dust, large temperature changes).

Typical applications include:

Safety door monitoring of robot workstation (multiple PSENslock locking devices connected in series)

Position detection on the conveyor line (multiple PSENcode encoded safety sensors)

Outdoor or flushing environment equipment that requires IP67 protection level

Compared to traditional IP20 junction boxes, this module directly uses M12 circular connectors without the need for additional control cabinets, significantly reducing wiring costs and improving system anti-interference capabilities.

Hardware Structure and Core Features

1. Interface distribution

The front of the module provides:

X1~X4: 4 8-pin M12 female sockets for connecting safety sensors

X5: 8-pin M12 female socket, connected to the safety input of the evaluation device (dual channel signal)

X6:8-pin M12 female socket, connected to standard I/O of evaluation equipment or controller, used for diagnostic signals (Diag) and lock control commands (Lock)

LED indicator lights: Power (green), Diag (green), Lock (green)

2. Electrical characteristics

Supply voltage: 24 V DC (allowable fluctuation see technical parameters)

Maximum carrying current per module: 2 A (UB end)

Working temperature range: -40 ° C to+60 ° C

Protection level: Overall IP67 (unused interfaces must be properly sealed)

3. Mechanical characteristics

Shell material: PBT (polybutylene terephthalate) or stainless steel version

Installation method: fix 2 M4 screws on a flat surface

Size: 120mm x 60mm x 20mm, weight approximately 240g

These features allow modules to be directly installed on equipment frames or machine bodies without the need for separate protective enclosures.

Safe use and compliance requirements

1. Expected use and limitations

The module is only allowed to connect to the safety sensor series specified by Pilz (PSENcode, PSENslock, PSENini) and cooperate with Pilz evaluation equipment. Prohibit the following behaviors:

Perform any soldering or component replacement on the circuit board

Use beyond the voltage, current, and temperature range specified in the technical parameters

Drive the actuator directly without connecting the evaluation device

2. Personnel qualifications

Installation, wiring, debugging, and troubleshooting must be completed by qualified personnel with safety technical knowledge. Specific requirements include:

Familiar with basic laws and regulations for accident prevention

Understand the safety warning content in this manual

Master relevant product standards (such as EN ISO 13849, IEC 62061)

3. Disposal requirements

When scrapping products, it is necessary to comply with local electronic waste disposal regulations (such as the EU WEEE Directive). The shell material is recyclable, and the internal circuit board must not be mixed with household waste.

Mechanical Installation Guide

1. Installation steps

Process two M4 internal threads on the installation surface, with the hole spacing referring to the installation groove on the back of the module (the spacing is not fixed, subject to the actual slot).

Use M4 screws (recommended length 10-12 mm) to secure the module, with a tightening torque of approximately 0.6 N · m.

Ensure that the installation plane is flat to avoid deformation of the shell causing seal failure.

All unused M12 female sockets must be sealed with the accompanying blind plugs, otherwise IP67 cannot be guaranteed.

2. Space precautions

Considering the bending radius of M12 plugs and cables (usually 5-10 times the wire diameter), sufficient spacing should be reserved between modules and surrounding devices.

If multiple modules are connected in series, it is recommended to use the adapter PDP67 Connector cs (order number 773610 or 773612) provided by Pilz to reduce the connection failure rate.

Detailed wiring rules

1. Pin allocation of connectors (X1~X4)

Definition and Explanation of Pin Signal

Input I2 (S21) safety sensor channel B (normally closed contact)

2 24 V DC (A1) sensor power supply positive pole