Selection and features of Pilz safety relays:
1. Understand the necessary conditions first
The power supply voltage of the control circuit, the maximum current that can be delivered;
voltage and current in the controlled circuit;
How many sets of contacts and what form of contacts are required for the controlled circuit.
When selecting relays, the power supply voltage of the general control circuit can be used as the basis for selection. The control circuit should be able to provide sufficient working current to the relay, no
then the relay engagement is unstable.
2. After consulting the relevant information to determine the conditions of use, you can search for the relevant information and find out the model and specification number of the relay you need. If you already have a relay on hand,
You can check whether it can be used based on the information. Finally, consider whether the size is appropriate.
3. Pay attention to the volume of the appliance. If it is used for general electrical appliances, in addition to considering the chassis volume, the small relay mainly considers the circuit board installation layout. For small
Type electrical appliances, such as toys and remote control devices, should choose ultra-small relay products.
Requirements for safety circuits for PILTZ safety relays:
1. When the emergency stop is lifted, the machine cannot be suddenly restarted
2. In case of failure of the machine safety circuit, the power supply of the machine can be stopped
3. When the safety circuit fails, the machine can no longer be started
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