Switch Operational Description
The magnetic switch is designed to operate in dirty industrial environments and is certified to the highest level of safety regulation when working together with a suitable JOKAB SAFETY safety relay.
The magnetic switch is small and resistant to both dirt and water, and has no dust collecting cavities making it usefull in environments where hygiene is paramount. The small size of the switch makes it easy to position and hide on gates and hatches. The magnetic switch has a long working life since no mechanical contact is made during operation.
Contacts
The magnetic switch has one closing and one opening contact. Both contacts have to be monitored. The contacts may be monitored by either the RT9 safety relay or other suitable relays in the new RT-series, i.e. RT6, RT9, or Safety PLC Pluto. By using the RT-series it is possible to choose between the reset (R) and test-input (T) functions. The 'R' stands for reset, supervised reset, which can be used on safety installations allowing passage, for instance gates. In addition to the input from the magnetic sensor, the reset-input has to be both closed and opened before the output contacts can close. This means that neither a short circuit nor a stuck button can give a reset.
To disable the reset function, the two connection blocks on the safety relay have to be hardwire connected. The Reset input will become a Test-input (T), the output will then operate when the input contacts change state.
Both the Test and Reset inputs can also be used to test the functionality of relays and contactors connected to the relay outputs. By connecting a normally closed contact to the Reset/Test input it is possible to test that contactors/relays have returned to their 'reset' state before a new 'start' signal is given. For further information please see data regarding Safety Relays in the RT-series.
Protection from Unauthorized or Incidental Access
To avoid unauthorized operation of the JSNY7 switch it is only possible to actuate the JSNY7R with the coded magnet, JSNY7M. Other magnets, screwdrivers and tools have no affect on the switch contacts.
Connection Examples
On our page of connection examples are numerous circuit diagrams showing solutions of safety problems.
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Applications:
- Gates/Hatches
- Position Control
Features:
- Small size
- IP 67
- Certified for highest level of safety regulations
Safety Level
The JSNY7 is approved to the highest level of safety regulations, category 4 according to EN954-1 together with safety relay in the RT-series. The magnetic switch is approved and certified by SAQ and BG.
JSNY7 is resistant to both dirt and water.
Regulations and Standards
The JSNY7 is designed and approved in accordance with appropriate standards. Examples of such are: DIN VDE 0660, T.209, prEN1088.
Approvals
  
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