Allen-Bradley Guardmaster 442G-MABR-URM-C03 Bedienungsanleitung

Rockwell Automation Publication 442G-DM001A-EN-P - September 2015 1

Demo

Multifunctional Access Box and Guard Locking

with Time Delay Safety Relay

442G-MABR-URM-C03

Purpose This demo is designed to demonstrate the features of a Multifunctional Access

Box and the Guard Locking with Time Delay (GLT relay) Safety Relay.

Product Overview The multifunctional access box is a guard locking interlock with integrated

controls that helps facilitate access to a safeguarded area. The customer

determines the functions of the integrated push buttons and the functions can

vary depending on the application. For this demo, a push button has been

assigned as an “Unlock Request” and the other one as a “Reset and Lock

Request.”

You press the Unlock Request button to request access to the safeguarded area.

The control system (GLT relay) shuts down the hazard and unlocks the guard

door after a time delay. Then you are allowed to open the guard door and enter

the safeguarded area. Upon exiting the safeguarded area, you close the door and

press the Reset and Lock Request button to lock the guard door and reset the

safety system.

Guard Locking with Time-delay (GLT relay) Safety Relay

The GLT relay safety relay is designed to use time-delay outputs for use in

Stop Category 1 applications and to unlock a guard door when the time

expires. The relay also provides a lock command to lock a guard door before the

starting of the hazard. In this demo, there is a three-second delay between the

time that the GLT relay receives the Unlock Request and the time that the

relay issues the Unlock command to the access box.

2Rockwell Automation Publication 442G-DM001A-EN-P - September 2015

Multifunctional Access Box and Guard Locking with Time Delay Safety Relay

System Setup

Wiring Diagram

Description of Operation 1. Turn Power ON by plugging in to 120V AC.

Be sure that the circuit breaker is switched to the on position.

2. Check that the guard door is closed and locked.

When the door is closed and locked, both push buttons are

illuminated.

Yellow Push Button -

Unlock Request

On/Off Circuit

Breaker

Manual Release

Green Power Reset

Button (800F)

Blue Push Button -

Reset

GLT relay Relay

Logic = 2

Range = 3

Time = 6

SI Relay Automatic/

Manual Reset (AM)

E-stop

Front View Rear View Escape Release

S12 S22

2451 L61

L12 L11 14

S11

440R-GL2S2T

S21 S44S54

Y32

LOGIC RANGE TIME 12

S11

S12

S21

S22

S34 A1 13

L11 A2 14

24Y32

440R-S12R2

RESET 0

4.4 4.6

RST

4.52.7

3.33.1

3.2

UB UA

0V3.7

5.2

5.3

MAB

2.42.3

2.22.1

Reset and Lock Request

Guardlocking Unlock Request

Safety

Gate

Open

MAB Fault Reset

Safety Out A

Safety Out B

OT = Gate Closed and Bolt Extended; not Locked

OL = Gate Closed, Bolt Extended and Locked

Guardlocking Solenoid Lock / Unlock Command

SI GLT

24V DC

24V DC COM

Rockwell Automation Publication 442G-DM001A-EN-P - September 2015 3

Multifunctional Access Box and Guard Locking with Time Delay Safety Relay

Note: If the PWR/Fault status indicator on the relay blinks red, push the blue

button on the access box to reset the relay.

Note: If the DIA status indicator on the access box is red, clear the fault by

pressing the green power reset button (found next to the circuit breaker) for at

least three seconds.

3. To request access to the hazardous area, press the yellow push button.

The GLT relay immediately turns its outputs OFF to shut down the

hazard and after three seconds, unlocks the guard door. The yellow

push button on the access box turns OFF.

4. Open the guard door.

The blue push button on the access box turns OFF.

Note: The yellow push button is illuminated when the door is “closed and

locked (diagnostic signal OL is on).” The blue push button is illuminated when

the door is “closed and the bolt actuator is inserted in the lock module” (and

therefore, ready to be locked (diagnostic signal OT is on)). See Diagnostics for

more information about the access box diagnostic signals.

5. Close the guard door.

The blue push button does not turn on again until you rotate the

handle to insert the bolt into the lock module.

6. To reset the safety system, press the blue push button.

The yellow push button turns on again, which indicates the device is

closed and locked.

E-stop

The GLT relay can be operated with other safety relays in the Guardmaster

Safety Relay (GSR) family, by use of the single-wire safety (SWS) connection.

When the GLT relay receives a single-wire safety signal from another GSR

relay, the GLT relay issues an Unlock command.

In this demo, the E-stop of the access box is connected to the GSR single input

(SI) safety relay. The single-wire safety (SWS) output of the SI is connected to

the SWS input of the GLT relay. When the E-stop is pressed, the GLT relay

immediately turns its outputs OFF to shut down the hazard and after three

seconds, unlocks the guard door.

7. With the door closed and locked and the outputs ON, press the E-stop.

This action turns the outputs of the SI OFF. The single wire safety of

the SI turns OFF, which turns the outputs of the GLT relay off. The

GLT relay cannot be reset until the E-stop is released.

8. Release the E-stop. To reset the GLT relay, press the blue push button.

IMPORTANT

The guard door must be in the open position to clear a latching fault.

4Rockwell 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

Rockwell Automation Publication 442G-DM001A-EN-P - September 2015 5

Multifunctional Access Box and Guard Locking with Time Delay Safety Relay

Four status indicators on the access box provide visual information about

system status:.

Status/Diagnostic Indicators

Additional Features Auxiliary/Manual Release

The auxiliary release lets you manually unlock the guard door in the event of

unforeseen or uncommon circumstances.

Note: When release monitoring is active (default factory setting), the system enters into a

latching fault when the manual release is actuated. If the manual release is actuated too

slowly, the system will not enter into a latching fault.

To reset the access box, turn the power off for at least three seconds or apply

24V to the input RST for a minimum of three seconds. (In this demo, use the

reset button next to the circuit breaker to the power supply.)

Note: You can reconfigure the access box DIP switches to deactivate Release

Monitoring (refer to Chapter 4 – Change Device Configuration (use of DIP

switches) in 442G-UM001A-EN-P).

Operating Mode

Status Indicator

StatePower (Green) State (Green) Diagnostic (Red) Lock (Yellow)

Diagnostics

Green flash 1 time

Off Error during handle configuration or invalid DIP switch setting

Green flash 2 times Off Input fault (only applies when switch is configured for series operation)

Green flash 3 times Off Handle module read error

Green flash 4 times Off Output fault

Off Yellow flash 1x Signal sequence erroneous or release has been actuated

Off Off Internal fault

Setup Off Off Off Positive acknowledgement after completion of handle configuration.

Power cycle or device RESET are required to resume normal operation.

Normal Operation Flashes green approximately

every three seconds Off Off Normal operation, door is open

IMPORTANT

The guard door must be in the open position to clear a latching fault.

6Rockwell Automation Publication 442G-DM001A-EN-P - September 2015

Multifunctional Access Box and Guard Locking with Time Delay Safety Relay

Bolt Locking Mechanisms

The access box has two mechanisms for locking the bolt actuator to prevent

locking the guard and restart of the machine while an operator is inside the

safeguarded area.

One of the bolt locking mechanisms automatically extends when the handle is

in the OPEN position. The other mechanism is manually extended (see Figure

1). To pivot out, press the grooved part (only possible with the handle in the

OPEN position and the bolt retracted).

Figure 1 - Bolt Locking Mechanisms

Note: The minimum padlock diameter is 2 mm (0.08 in.) and the maximum

diameter is 10 mm (0.39 in.) You can fit a maximum of three locks with an

8mm (0.31 in.) diameter.

IMPORTANT

With the manual bolt locking mechanism rolled out, the bolt cannot be

extended.

Automatically

Extending Mechanism

Roll-out

Mechanism

Rockwell Automation Publication 442G-DM001A-EN-P - September 2015 7

Multifunctional Access Box and Guard Locking with Time Delay Safety Relay

Notes:

Multifunctional Access Box and Guard Locking with Time Delay Safety Relay

Publication 442G-DM001A-EN-P – September 2015

Rockwell Automation maintains current product environmental information on its website at

http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page.

Allen-Bradley and Guardmaster are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

U.S. Allen-Bradley Drives Technical Support - Tel: (1) 262.512.8176, Fax: (1) 262.512.2222, E-mail: support@drives.ra.rockwell.com

Online: www.ab.com/support/abdrives.

Rockwell Otomasyon Ticaret A.Ş., Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400

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