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Operating Instructions: Alfred Solenoid Controlled Guard Lock

8

Technical Specification

Actuator and 

Head 

Modules

Key Adaptor 

Modules

Safety-on-Guard-

Locking type 

Solenoid Modules

XL411 & XL471

Safety-on-Guard type 

Solenoid Modules

XL416 & XL461

Construction Materials

316 Stainless Steel and

Stainless Steel to BS3146-2:1975 (ANC4B)

Mechanical Life

1,000,000 operations

Holding Force, F

ZH

7kN

Maximum Holding Force, F

1MAX

14kN

Operating Force (unlocked unit, 

without Key Adaptors)

XX N

N/A

Key Operation Force

N/A

XX N

N/A

Electrical Specification

N/A

AC 50 / 60Hz / DC

Utilisation Category

N/A

AC 15 or DC 13

Maximum Switch Current

N/A

DC13: Le=0.5A, Ue=24V DC AC15: Le=1A, 

Ue=24V AC

Minimum Switch Current

N/A

1mA at 5V DC

Maximum Switching Voltage

N/A

24V AC/DC

Switch Conformance

N/A

DIN VDE 0060 Part 206 & IEC 947-5-1

Switch Contacts on Actuator/Key 

operation

N/A

2NC 1NO

2NC 1NO

Switch Contacts on Solenoid 

operation

N/A

2NC 1NO

1NO

Safety Circuit Switching Principle

N/A

Positive break, dual channel

Solenoid Voltage

N/A

24V DC  (+/-10%)

Solenoid Power Rating

N/A

350mA max @ 24V DC

Solenoid Rating (Duty Cycle)

N/A

100%

Transient Overvoltages Installation

N/A

Category III

Cable Size

N/A

28 – 12 AWG

Diagnostic Coverage (DC)

99%

λd

10%

Performance Level 

N/A

Up to PLe

PLc to PLe*

Category

Up to Cat.4

B10d

5,000,000 operations

Ingress Protection

N/A

IP67 & IP69

Pollution Degree (IEC 664)

N/A

Degree 2

Environment

Indoor & Outdoor

Ambient Temperature

-20˚C (-4˚F) **  to +60˚C (+140˚F)

Maximum Humidity

80%@<=31°C; 50%@40°C

Maximum Altitude

2000m

Shock and Vibration Resistance

Tested in accordance with GS-ET-19_2015-05

Applicable Standards

BS EN ISO 13849-1:2015, BS EN ISO 13849-2:2012, BS EN ISO 14119:2013, 

BS EN IEC 60079-0:2018, BS EN 60079-1:2014, BS EN ISO 80079-36:2016

*  Depending on application.

** The units will only continue to work below freezing point (0°C) where it can be guaranteed that ice will not form on or in the unit as it will cause the 

mechanical parts to bind and jam.

Safety Functions

Part No.

Safety Function 1

Turns mechanical movement of assembled Head module and/or Key Adaptor 

module into operation of Safety Contacts.

EXP … XL***

Safety Function 2

Solenoid Mechanism holds door/gate locked.

EXP … XL***

Summary of Contents for FORTRESS Alfred

Page 1: ...operating instructions enclosed It must be installed by competent and qualified personnel who have read and understood the whole of this document prior to commencing installation If the equipment is u...

Page 2: ...65 3 4 When used for a Group III application the adhesive labels and non metallic coatings may store electrostatic charge and become a source of ignition Guidance on protection against the risk of ign...

Page 3: ...750mm Can be fitted in two positions at 90 to either hinged or sliding door gates Description Part No Handing Hinged Handle Assembly EXPHL1 Front Integrated handle for guarding applications with hinge...

Page 4: ...21 ALFRED SAFETY SWITCH OPERATING INSTRUCTIONS IMAGES DWG NO SD 00 2 LEFTHAND FACING DIRECTION OF ACTUATOR ENTRY 1 FRONT FACING HEAD 3 REAR FACING 4 RIGHTHAND FACING Head Modules Description Part No H...

Page 5: ...hinery that is required to be isolated before access Safety Key Adaptors Used to provide a personnel key function to prevent unexpected machine start up Extracted Key Adaptor Also used as a personnel...

Page 6: ...dard dustcover Description Part No Extracted Key Adaptor EKL7 Master lock type standard dustcover Description Part No Extracted Key Adaptor EKL3 Standard lock type padlockable dustcover Description Pa...

Page 7: ...olenoid EXPXL416 Power to Unlock device Dual Safety Circuits change state on opening closing of a guarded area or operation of an interlocked key Monitoring circuit on Solenoid action provides feedbac...

Page 8: ...channel Solenoid Voltage N A 24V DC 10 Solenoid Power Rating N A 350mA max 24V DC Solenoid Rating Duty Cycle N A 100 Transient Overvoltages Installation N A Category III Cable Size N A 28 12 AWG Diagn...

Page 9: ...depending on product selection and configuration See specific functioning section below With Solenoid de energised the Internal mechanism of the Power to Unlock Ex Rated Solenoid Module automatically...

Page 10: ...Monitor Circuit opens breaks Safety Circuits remain closed Gate Monitor Circuit remains broken Unlocking De Energise the Solenoid Internal locking mechanism dis engages to remove locking force from th...

Page 11: ...k product An Extracted style Key Adaptor will always be located closest to the Head Module If Extracted style and Safety style Key Adaptors are configured together their operation sequence will combin...

Page 12: ...essinterlocks com THE COPYRIGHT OF THIS DRAWING BELONGS TO FORTRESS INTERLOCKS Ltd THE CONTENT OF THIS DRAWING IS CONFIDENTIAL AND MUST NOT BE DISCLOSED TO ANY 3rd PARTY WITHOUT SPECIFIC WRITTEN APPRO...

Page 13: ...FORTRESS INTERLOCKS Ltd THE CONTENT OF THIS DRAWING IS CONFIDENTIAL AND MUST NOT BE DISCLOSED TO ANY 3rd PARTY WITHOUT SPECIFIC WRITTEN APPROVAL ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE STATED A3 SC...

Page 14: ...ntenance procedures are all easily possible All fixing screws used to mount the complete Alfred Solenoid Controlled Guard Lock product must be permanently prevented from removal If mounting fixings ar...

Page 15: ...ATE 25 02 21 ISSUE 0 ALFRED SAFETY SWITCH OPERATING INSTRUCTIONS IMAGES DWG NO SD 00033 Operating Instructions Alfred Solenoid Controlled Guard Lock 15 Electrical Connection and Installation Tools and...

Page 16: ...Circuit and terminal 13 Solenoid Monitor Circuit Terminal 12 Guard Open Output Signal Control signal produced by the Ex Rated Solenoid Module to indicate that the Machine Guarding is in an open state...

Page 17: ...3 14 INTERNAL EARTHING POINT SHALL BE USED FOR EQUIPMENT GROUNDING CONNECTION FIX WITH M4 FIXING SCREW SUPPLIED SEE OPERATING INSTRUCTIONS FOR DETAILS XPXL471 13 3 4 EXTERNAL EARTHING POINT SHALL BE U...

Page 18: ...ard Lock product If damage or wear is found with an assembly please contact your local Fortress Channel Partner The complete interlock must be replaced after 1 million switching operations Disposal Th...

Page 19: ...the declaration described above is in conformity with the relevant Union harmonisation legislation 2014 34 EU The following harmonised standards and other technical specifications were used in suppor...

Page 20: ...e is in conformity with the relevant Union harmonisation legislation 2014 34 EU The following harmonised standards and other technical specifications were used in support of this declaration Harmonise...

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