1. Introducció
This manual provides essential information for the safe and efficient operation of the PILZ PNOZsigma contact expansion safety relay, model 750107. This device is designed as a contact block for expanding safety-related control components, featuring 4 normally open (N/O) and 1 normally closed (N/C) outputs.
Please read this manual thoroughly before installation, operation, or maintenance to ensure proper functionality and safety.
2. Informació de seguretat
ADVERTIMENT: Improper installation or operation of this device can result in serious injury or death. Always adhere to local and national electrical codes and safety regulations.
- Assegureu-vos que l'alimentació estigui desconnectada abans de realitzar qualsevol instal·lació, cablejat o manteniment.
- Només personal qualificat ha d'instal·lar, operar i mantenir aquest equip.
- Do not bypass or modify safety functions.
- Inspeccioneu regularment el dispositiu per detectar danys o desgast.
- Utilitzeu només el volum especificattage i qualificacions actuals.
3. Descripció i característiques del producte
The PNOZsigma contact expansion relay (model 750107) is a compact and reliable safety component. It is specifically designed to expand the number of available safety contacts from a primary safety-related control system.
Característiques principals:
- Outputs: 4 Normally Open (N/O), 1 Normally Closed (N/C)
- Subministrament Voltage: 24 V CC
- Compact Width: 17.5 mm
- Connection Type: Plug-in screw terminals
- Mounting: DIN Rail Mount
- Contact Material: Silver

Figura 3.1: Frontal view of the Pilz PNOZ s7 safety relay, showing its yellow casing, screw terminals, and labeling for inputs, outputs, and fault indicators. The model number PNOZ s7 is visible on the front.
4. Configuració i instal·lació
4.1 Muntatge
The PNOZsigma 750107 is designed for DIN rail mounting. Ensure the DIN rail is securely fastened and provides adequate space for ventilation around the unit.
- Align the top clip of the relay with the top edge of the DIN rail.
- Press the bottom of the relay firmly until it clicks into place on the DIN rail.
- Verify that the relay is securely mounted and does not wobble.
4.2 Cablejat
All wiring should be performed with power disconnected. Refer to the terminal markings on the device for correct connections. The unit features plug-in screw terminals for easy and secure wiring.
- Connect the 24 V DC supply voltage to the designated terminals (e.g., A1/A2).
- Connect the input signals from the primary safety device to the input terminals (e.g., X1, X3).
- Connect the safety outputs (N/O and N/C contacts) to the controlled devices or subsequent safety circuits. Ensure correct load ratings are observed.
- Tighten all screw terminals to the recommended torque to prevent loose connections.
5. Instruccions de funcionament
Once properly installed and wired, the PNOZsigma 750107 operates as an expansion module for safety circuits. Its operation is dependent on the signals received from the connected safety-related control component.
- Upon power-up, the device will perform an internal self-test.
- The output contacts will switch according to the state of the input signals and the internal logic of the primary safety device.
- Indicators (if present on the device, e.g., In1, In2, Out, Fault) will provide visual feedback on the operational status and any detected faults.
For detailed operational logic, refer to the documentation of the primary safety-related control component with which this expansion relay is used.
6. Manteniment
The PNOZsigma 750107 is designed for minimal maintenance. However, regular inspections are recommended to ensure continued safe operation.
- Inspecció visual periòdica: Check for any signs of physical damage, discoloration, or loose connections.
- Estanquitat del terminal: Periodically re-check the tightness of all screw terminals, especially after initial installation and during routine maintenance checks.
- Condicions ambientals: Assegureu-vos que l'entorn operatiu es mantingui dins dels rangs de temperatura i humitat especificats per evitar fallades prematures.
- Neteja: If necessary, clean the exterior of the unit with a soft, dry cloth. Do not use abrasive cleaners or solvents.
No user-serviceable parts are inside the unit. Do not attempt to open or repair the device.
7. Solució De Problemes
This section provides basic troubleshooting steps for common issues. For complex problems, contact PILZ technical support.
| Problema | Causa possible | Solució |
|---|---|---|
| Unit not powering on / No indicators | Sense subministrament voltage; Incorrect wiring; Blown fuse in supply circuit. | Verify 24 V DC supply voltage; Check wiring connections; Inspect and replace fuse if necessary. |
| Outputs not switching | No input signal from primary safety device; Fault in primary safety device; Incorrect output wiring. | Check input signals; Troubleshoot primary safety device; Verify output wiring to load. |
| Fault indicator active | Internal fault; External wiring fault; Overload on outputs. | Cycle power to reset (if safe); Check all wiring for shorts or open circuits; Verify load current does not exceed 6 Amps. If fault persists, contact support. |
8. Especificacions tècniques
| Paràmetre | Valor |
|---|---|
| Número de model | 750107 |
| Marca | PILZ |
| Sortides | 4 N/O (Normally Open), 1 N/C (Normally Closed) |
| Subministrament Voltage (UB) | 24 V CC |
| Valoració actual | 6 Amps |
| Amplada | 17.5 mm |
| Dimensions del producte (L x A x A) | 3.94 x 6.3 x 13.78 polzades |
| Pes | 0.32 unces |
| Tipus de connector | Screw Terminals (Plug-in) |
| Material de contacte | Plata |
| Tipus de muntatge | Muntatge sobre carril DIN |
9. Garantia i Suport
For information regarding product warranty, please refer to the official PILZ website or contact your authorized distributor. PILZ products are manufactured to high quality standards, and specific warranty terms may vary by region and product type.
Atenció al client:
If you require technical assistance, have questions about installation, or need to report a product issue, please contact PILZ customer support. You can find contact information on the official PILZ weblloc web o a través del proveïdor del producte.
Per a consultes generals, també podeu consultar la Botiga PILZ a Amazon.





