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Rockwell Automation Publication 442G-DM001A-EN-P - September 2015
Multifunctional Access Box and Guard Locking with Time Delay Safety Relay
Using the Escape Release
The access box is optimized for use in full body access applications where
entrance into the safeguarded area could be required. In full body access
applications, it is important to consider what would happen if someone were
locked inside the safeguarded area. The optional escape release allows a person
who is locked inside the safeguarded area to exit quickly and easily.
9.
Turn the red escape release handle to demonstrate that the escape release
mechanically overrides the solenoid locking mechanism.
The DIA status indicator on the access box turns solid red to indicate
a latching fault. The PWR/Fault status indicator on the GLT relay
flashes green and red (5x) to indicate that the gate is open when it is
expected to be closed and locked.
Note:
When release monitoring is active (default factory setting), the system enters into a
latching fault when the escape release is actuated. If the escape release is actuated too slowly,
the system will not enter into a latching fault.
10.
To reset the access box, turn the power off for at least three seconds or
apply 24V to the Reset (RST) input for a minimum of three seconds.
In this demo, use the green power reset button next to the circuit
breaker to the power supply.
11.
To clear the fault on the GLT relay and to turn on the outputs, press the
blue push button.
Diagnostics
The access box has four diagnostic signals that the control system can use to
monitor device status.
For this demo, OL and OT are being used to illuminate the push buttons.
IMPORTANT
The escape release must be installed in such a way that it can only be
activated from inside the safeguarded area.
IMPORTANT
The guard door must be in the open position to clear a latching fault.
Signal
Function
OD
ON when the guard door is in the closed position
OT
ON when the guard door is closed and the bolt actuator is inserted in the lock module
OL
ON when the guard door is closed and locked
OI
ON when the switch is in a fault state
