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This document describes the Pizzato Elettrica CS MP302-0, a multifunction safety module designed for industrial machinery.
The CS MP302-0 is defined as a logic block for safety functions according to Machinery Directive 2006/42/CE. It's used to implement safety functions such as emergency stop monitoring, door or guard control, safety barrier monitoring, safety mats, or magnetic sensors in industrial machinery. This device is particularly suitable for controlling machinery that requires various combined safety functions (e.g., emergency stop control and simultaneous protection control), or machinery with parts that need to be isolated during normal operation (e.g., for maintenance).
The module features multiple inputs evaluated by an application program to activate safety or signaling outputs. To achieve the highest safety levels, it has a redundant and self-controlled structure with two processors that continuously and coordinately verify the system. The module also has numerous green LEDs to indicate the status of inputs and outputs, and two red/blue LEDs (P1, P2) to indicate the status of the processors or any faults. The safe state corresponds to the deactivation of the safe outputs (safe power off).
The safety function implemented by the module is built and configured using the logic blocks available in the Gemnis Studio configuration software, distributed by Pizzato Elettrica with a free license. A general safety function can be defined as follows: the safe outputs are deactivated within the declared reaction time if the result of the programmable logic solver (application program) is negative or if errors are present. Depending on the characteristics of external devices and the circuit structure, this module can achieve safety circuits up to: SIL 3 according to EN 62061; PL e according to EN ISO 13849-1; safety category 4 according to EN ISO 13849-1.
When power is supplied, the module enters the POWER ON state and performs an internal self-diagnosis. During this phase, the two processor LEDs (P1, P2) remain lit red for approximately 1 second. If the internal tests complete without anomalies, the two LEDs turn off, and the module enters the RUN state and executes the application program. If the startup tests are not successfully completed, the module enters the ERROR state, and the processor LEDs (P1, P2) indicate the anomaly by remaining lit red. The green LEDs for power supply and module inputs are not controlled by the processors and immediately indicate the status of the respective inputs/outputs. When the module is in the RUN state and no faults are detected, the two LEDs (P1, P2) remain off.
In the RUN state, the module can detect external faults, for example, due to short circuits or invalid input states. Depending on the type of fault detected, the application program can force the module into the ERROR state to highlight the anomaly. In this case, the application program can communicate an error code via a blinking sequence of the LEDs (P1, P2). During the RUN state, in parallel with the execution of the application program, the module continuously performs a series of internal tests to verify the correct functioning of the hardware. If an anomaly is detected, the module enters the ERROR state.
When in the ERROR state, the module enters a safe condition, meaning all safety outputs are open, the application program is no longer evaluated, and the system inputs are not affected. Additionally, the static signaling outputs remain unchanged (input changes do not affect them) at the value set by the application program before entering the ERROR state. To reset the module, it must be powered off for a sufficient time (see technical data) and then powered back on.
Housing:
General Data:
Power Supply (A1-A2):
Input Circuits (Ix):
Circuits with Test Signals (Tx):
Semiconductor Signaling Output Circuits (Ox):
Semiconductor Safety Output Circuits (OSx):
The device is intended for use in industrial machinery. Direct public sale is prohibited; use and installation are reserved for specialized personnel. It is not permitted to use the device for purposes other than those indicated in these instructions. Any use not expressly provided for in these instructions is considered unintended by the manufacturer. Unintended uses also include:
The number and capacity of output contacts can be increased using external contactors with forcibly guided contacts. For correct operation, any modules or PLCs connected to the electronic safety outputs (OSx) must tolerate the cyclic deactivation tests performed on them.
The device must be installed only inside a cabinet with a protection degree not less than IP54 according to EN 60529. It must always be affixed with the specific DIN rail adapter according to EN 60715. Avoid stressing the device with bending or torsion. Do not modify or open the device for any reason. The device carries out an operator protection function; any inadequate installation or tampering can cause serious injuries, property damage, and economic losses. These devices must not be bypassed, removed, or disabled in any other way. If the machine where the device is installed is used for a purpose other than that specified, the device may not provide efficient operator protection. The safety category of the system (according to EN ISO 13849-1), including the safety device, also depends on the external components connected to it and their type.
The device should not be used in environments where:
Do not disassemble or attempt to repair the device. In case of any malfunction or failure, replace the entire device. The device installer is responsible for establishing the sequence of functional tests to which the device is to be subjected before the machine is started up and during maintenance intervals. The sequence of functional tests can vary depending on the machine complexity and circuit diagram; therefore, the sequence detailed below is considered minimal and not exhaustive.
Perform the following sequence of checks before the machine is commissioned and at least once a year (or after a prolonged shutdown):
The device is designed for applications in dangerous environments and therefore has a limited service life. Although still functioning, the device must be completely replaced 20 years from the date of manufacture. The date of manufacture is placed next to the product code.
Do not install the safety module if voltage is present. Power the device only when the electrical circuits have been completely realized according to the specifications indicated in the OPERATION paragraph. The first time you start the machine, ensure that there are no people close to hazardous areas. Check that the supply voltage is correct before powering the device. Keep the charge within the values specified in the electrical operation categories. Only connect and disconnect the device when the power is off. When using plug-in-type terminal blocks, they may only be plugged in or unplugged if no supply voltage is present. Discharge static electricity before handling the product by touching a metal mass connected to earth. Any strong electrostatic discharge could damage the device. Power the safety module and the other devices connected to it from a single SELV/PELV source and in accordance with the applicable standards (applies only to versions with a supply voltage of 12 V and 24 V). Plug-in type connectors, and in particular those of the output contacts of relays (when installed) may be powered by high voltage. We recommend keeping the power supply of the safety module galvanically separated from the power section of the machine and keeping the connection cables of the module separated from the power cables. Always connect the protection fuse (or equivalent device) in series with the power supply for each device. Always connect the protection fuse (or equivalent device) in series to the safety electrical contacts. During and after the installation, do not pull the electrical cables connected to the device. If excessive tension is applied to the cables, the device may be damaged.
General| Brand | pizzato |
|---|---|
| Model | CS MP302 0 Series |
| Category | Safety Equipment |
| Language | English |
