8 Rockwell Automation Publication 442G-UM002B-EN-P - August 2021
Chapter 1 Product Overview
Power to Release For Power to Release versions, spring force keeps the locking arm in the locked
position and unlocks by solenoid force when power is applied to the solenoid.
Guard locking is activated when the guard is in the closed position and power
is removed from the solenoid.
Guard locking is deactivated when voltage is applied to the solenoid.
Power to Lock For Power to Lock versions, solenoid force keeps the locking arm in the locked
position when power is applied to the solenoid and unlocked by spring force
when power is removed from the solenoid.
Guard locking is activated when the guard is in the closed position and power
is applied to the solenoid.
Guard locking is deactivated when voltage is removed from the solenoid.
IMPORTANT
Safety output signal Unlock is turned off.
IMPORTANT
Safety output signal Unlock is turned on.
ATTENTION: If the safety guard is open when power is removed from the
solenoid and the guard is then closed, guard locking is activated. This
activation can lead to persons being locked in unintentionally.
IMPORTANT
Safety output signal Unlock is turned off.
IMPORTANT
Safety output signal Unlock is turned on.
ATTENTION: An unintended loss of power causes guard locking to be
deactivated. Power to Lock versions should only be used for personal
protection if minimum safe distance is provided in accordance with
EN ISO 13855.
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