Safeguard Switch
WARNING
The interlock of the safeguard must be functioning when the robot system is operated. Do not operate the system under the condition that the switch cannot be turned ON/OFF (e.g. The tape is put around the switch.).
In order to maintain a safe working zone, a safeguard must be set up around the Manipulator and have an interlock switch at the entrance of the working zone. The “safeguard” that is described in this manual is one of the safeguards and an interlock of the safeguard is called the safeguard switch.
Make sure to connect the safeguard switch to the safeguard input terminal on the EMERGENCY connector. The safeguard switch has safety features such as temporary hold-up of the program or the operation-prohibited status that are activated whenever the Safeguard is opened.
Observe the following in designing the safeguard switch and the safeguard.
- For the Safeguard switch, select a switch that opens as the safeguard opens, and not by the spring of the switch itself.
- Two safeguard inputs are available. If the signals at the two inputs differ by two seconds or more, the system recognizes it to be an error caused by some kind of abnormality in the input circuit. Therefore, safeguard switches with two contacts should be used, and each contact should be connected to the two safeguard inputs.
- Make sure to design the safeguard to prevent the door from closing accidentally.