58 Rockwell Automation Publication 440C-WD001C-EN-P - June 2015
Chapter 11 Multifunction Access Box
Circuit Status
The gate is closed and locked. The E-stop is released. The 100S contactors are
de-energized, and the motor is OFF. On the MAB, the reset indicator is ON,
which indicates that the reset button must be pressed.
Operational Sequence
1. Press the reset button.
The contactors turn ON, and the reset indicator turns OFF.
2. P
ress the E-stop.
Th
e contactors turn OFF.
3. Release the E-stop.
T
he reset indicator turns ON.
4. Press the reset button.
T
he contactors turn back ON.
5. P
ress the unlock button.
T
he contactors turn OFF, the unlock indicator turns ON, and the gate is
unl
ocked.
6. R
otate the gate handle and open the gate, while the indicator is ON.
I
f you wait until the indicator turns OFF, the gate locks. Press the unlock
bu
tton again to unlock the gate.
7. Close the gate and rotate the handle back to the locked position.
As
soon as the handle is in position, the gate becomes locked, and the reset
ind
icator turns ON.
Example Bill of Materials
Table 16 - Bill of Materials
Safety Rating
The safety ratings of the guardlocking function is PLe, Cat 4 for interlocking and
guard lock monitoring per ISO13849-1:2008.
Item Product Description Qty
1 440C-CR30-22BBB Guardmaster 440C-CR30 Software Configured Safety Relay
PLe SIL 3, 22 Safety I/O, embedded serial port, USB programming
port, 2 plug-in slots, 24V DC
1
2 442G-MABH-R Handle Assembly
442G access box, right-hinged door, with bolt locking mechanism
1
3 442G-MABR-UTC03 Lock Module
442G access box, power-to-release, unique code, M20 conduit, E-stop,
2 push buttons
1
4 442G-MABE1 Escape Release
442G-MAB, standard shaft
1
5 100S-C43QJ14BC 100S-C Safety Contactor
43 A, 24V DC (with electronic coil), bifurcated contact, fast drop out
time
2
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