Description
The JSNY8 Safety Interlock Switch, in conjunction with the machine control system, enables gates, movable guards, etc. to be locked in their protective positions, thus preventing access to machinery until dangerous operations have ceased.
Applications include:
- Processes which cannot be interrupted, such as welding.
- Machinery with a long stopping procedure, such as paper machinery that requires a long braking operation.
- Prevention of unauthorized access to a particular area.
The JSNY8 has 2 + 2 NC positive force disconnection contacts. The first pair closes when the actuator key is pushed into the head. The other pair closes when the locking mechanism is in the locked position.
The head can be set in four positions, thus providing the safety device with four different operating positions. These are selected by twisting the head according to the instructions in the diagram above. The leading edges of the actuator key are reinforced and bevelled in order to guide it properly into the hole. The JSNY8 is encased in a robust metal housing (IP67) providing a high level of protection to the internal operating components.
Tamper Proof
The JSNY8 Safety Interlock Switch is tamper-proof. The safety device cannot be manipulated by screwdrivers, magnets or other tools.
Safety Level
The JSNY8 has double forced disconnection contacts to the actuator key and the locking mechanism. The actuator key has a triple coding design. To achieve maximum safety level in the connection to the machine's control system, it is recommended that the JSNY8 is monitored by an appropriate JOKAB SAFETY safety relay.
Connection Examples
Several examples of circuit diagrams that illustrate applications of safety devices are featured on our connection examples page.
|
Applications:
Features:
- Certified for highest level of safety regulations Category 4 when used with a safety relay
- Robust design
- Universal installation
- 2 NC + 2 NC outputs
- 1000 N locking force
Optional Features:
- Actuator to operate at smaller radius
- Customer specific applications
Two Versions
The JSNY8 is available in two basic versions, either with a spring lock or a magnetic lock. In the spring lock (JSNY8S) version, the locking mechanism moves into the locked position directly when the door is closed and the actuator key is pushed into the lock. The actuator key can only be released and the gate opened by supplying operational voltage to the solenoid (E1-E2).
The JSNY8S also has a emergency 'unlocking' facility to enable the actuator key to be released without the energization of the solenoid (E1-E2).
In the magnetic lock (JSNY8M) version, the locking mechanism is only in the locked position when the solenoid (E1-E2) is supplied with operating voltage. Release of the actuator key is only possible when the operating voltage is removed from the solenoid (E1-E2).
JSNY8S
JSNY8M
Regulations and Standards
The JSNY8 is designed and approved in accordance with appropriate standards. Examples of such are: EN60204, IEC 204, EN 60947-1-5, IEC 947-5-1, VDE 0113, VDE 0660 T200, GS-ET 19 and EN 1088.
Approvals
   
|
