2TLC172083M0201, rev. A
12
www.jokabsafety.com
2011-09-16
5 Operation
JSNY8S
Spring to lock
JSNY8S “spring to lock”, i.e. the device is locked as soon as the actuator is inserted into the actuator head. By
design, the locking cannot be activated unless the actuator is completely inserted into the actuator head.
Power to release
JSNY8S require “power to release”, i.e. the device requires power supplied to E1-E2 in order to unlock the actuator
when inserted into the actuator head.
Contact states
The internal contacts (2 NC + 2 NC, “normal” state when machine is allowed to run) are all closed when the
actuator is inserted into the actuator head and when the device is locked, i.e. when no power is supplied to E1-E2.
Since the locking cannot be activated unless the actuator is completely inserted into the actuator head, the
contacts used to monitor the locking can also be used to monitor the position of the movable guard.
JSNY8M
Power to lock
JSNY8M require “power to lock”, i.e. the device requires power supplied to E1-E2 in order to lock the device after
the actuator has been inserted into the actuator head. By design, the locking cannot be activated unless the
actuator is completely inserted into the actuator head.
Spring to release
JSNY8M “spring to release”, i.e. the device unlocks as soon as the power to E1-E2 is cut off.
Contact states
The internal contacts (2 NC + 2 NC, “normal” state when machine is allowed to run) are all closed when the
actuator is inserted into the actuator head and when the device is locked, i.e. when power is supplied to E1-E2.
Since the locking cannot be activated unless the actuator is completely inserted into the actuator head, the
contacts used to monitor the locking can also be used to monitor the position of the movable guard.
