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Operating Instructions: ATOM
Description
ATOM is a compact, ultra-robust, RFID, interlocking device
with a high-level coded actuator. As typical with products
from Fortress Interlocks, ATOM is externally approved and is
suitable for applications up to PLe/Cat. 4. The metal
housing and high retention force then suits ATOM for heavier
industry applications.
The self-centering actuator allows for inaccuracy and
misalignment in movable guards, both hinged and sliding.
Additionally, ATOM's head has an open design manufactured
in stainless steel to prevent dust, dirt and corrosion from
impacting performance.
Available in Power to Lock and Power to Unlock variants,
the device can be configured for many applications either as
a guard locking or a process locking interlock. Multiple units
can also be cascaded with OSSD (Output Signal Switching
Device) functionality preventing fault masking. The large
LED lens at the base provides clear state indication from all
angles and at a distance.
An Escape Release (ER) option is available for guard
locking variants.
Important:
The ATOM interlocking device (The Device) is designed for use according to the installation and operating instructions
enclosed. It must be installed by authorized personnel who have read and understood the whole of this document prior to
commencing installation.
If the device is used in a manner not specified by the manufacturer, the protection provided by the device may be impaired.
Any modification to the device or deviation from these instructions invalidates all warranties. Fortress Interlocks Ltd accepts
no liability whatsoever for any situation arising from misuse or misapplication of this device.
The Device is not to be used as a Mains Isolator or Emergency Stop. The device must not be used as a mechanical stop.
All the voltages used within the connected circuits must be derived from a Safety Extra Low Voltage or Protected Extra Low
Voltage power supply (SELV or PELV).
The device contains a single electrical circuit; all inputs outputs and power supply have a common voltage reference, 0V.
The Device is a component to be added to a permanent electrical installation meeting the requirements of the applicable
standards and regulations.
The Device meets the requirements of the standard ISO 14119 – Safety of machinery, interlocking devices associated with
guards- Principles for design and selection.
It is important that the correct version of this device is selected. If there is any requirement for an escape release element in
the product, then the releasing version must be used.
DO NOT LEAVE AUXILIARY RELEASE TOOL IN PLACE!
Always keep the auxiliary release tool and any spare actuators in a secure place, under management control, as it allows
access to areas that may contain hazards and may result in incorrect operation of some devices.
BEWARE OF FORESEEABLE MISUSE BY OPERATORS WANTING TO BYPASS SAFETY SYSTEMS. THE USER
SHOULD ASSESS THE RISKS AND MITIGATE AGAINST THEM. The installation and operation of the unit must take into
account the requirements of ISO 14119:2024, Clause 8 - Design to minimize the motivation to defeat. Safety functions should
be validated to ISO 13849-1 and/or evaluated in accordance with IEC 62061.
IF YOU HAVE ANY QUESTIONS OR QUERIES OF ANY NATURE WHATSOEVER PLEASE CONTACT THE SUPPLIER
WHO WILL BE PLEASED TO ADVISE AND ASSIST.
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Summary of Contents for Fortress Technologies ATOM
- Page 1 Important: The ATOM interlocking device (The Device) is designed for use according to the installation and operating instructions enclosed. It must be installed by authorized personnel who have read and understood the whole of this document prior to commencing installation.
- Page 2 Operating Instructions: ATOM Power-to-unlock interlock with guard Power-to-unlock interlock with Power-to-lock interlock with process locking process locking locking Popular configuration for where the The recommended set up for most When power is supplied to the solenoid machine guarding applications and solenoid performs a process control the device becomes locked.
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Page 3: Environmental Data
Ambient Temperature *Note, the ATOM Device will only continue to work below freezing point (0°C) where it can be guaranteed that ice will not form on or in the device as it could cause the mechanical parts to bind and jam. - Page 4 Operating Instructions: ATOM Wiring and Connection Information ATOM CONNECTOR POSITIONS SINGLE 5 PIN M12 CONNECTOR SINGLE 8 PIN M12 CONNECTOR ATM-100A1-A ATM-100A3-A ATM-110A1-A ATM-110A3-A AUXILIARY RELEASE / ATM-610A3-A ATM-610A1-A SOLENOID OVERIDE. ATM-100A3-A-ER1 ATM-100A1-A-ER1 (IF FITTED). M12 CONNECTOR M12 CONNECTOR POSITION 2...
- Page 5 20.4V to ensure The total response time can be calculated using: T = 200ms + (n-1)x25ms, where n = the number of ATOM correct operation. A typical application with devices spaced 5m apart, wired with devices connected in series.
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Page 6: Safety Data
Closing and Locking The device is closed by inserting the Atom Actuator assembly into the upper head portion of the ATOM Switch assembly (See Fig.1). Once inserted, the internal mechanism then locks the Actuator assembly into the ATOM switch placing the Device into its Locked-State, the Safety Outputs turn on, and the Monitor Output turns off. - Page 7 2. Return the interlock actuator into the head module of the device. 3. Pull on the Escape Release Knob. 4. After exiting the guarded area, return the ATOM actuator assembly into the ATOM switch assembly and return device to its \ locked state.
- Page 8 LED Output ATOM Interlocking Device state is indicated by LED at the base of the device. If a device is in a fault state, follow trouble- shooting procedures to clear the fault. A full cycle of the inputs or power cycle may be required to clear the fault state. If fault state cannot be cleared contact Fortress Technical Support.
- Page 9 4. Prepare the guard of the guarded area by cutting any required holes or threads following the dimensions of Fig. 4 and Figures 7-11. 5. For ATOM with Escape Release (ER) only – Drill a minimum 21mm hole in guard post to allow for Escape Release housing. See Fig. 10 for required hole location.
- Page 10 Operating Instructions: ATOM Figure 3: Extrusion Profile Mounting Application Example M5 SECURITY FIXING SCREW M5 T-NUT (MIN. LENGTH 20mm) 40mm ALUMINIUM EXTRUSION M5 T-NUT SHOWN FOR EXAMPLE ONLY. ATOM SWITCH ASSEMBLY M5 NYLON WASHER M5 SECURITY FIXING SCREW (MIN. LENGTH 40mm)
- Page 11 Operating Instructions: ATOM Figure 5: ATOM Device with Escape Release Mounting Example M5 - T-Nut Ø 21mm min. bore to accept Escape Release ATOM Escape Release housing knob removed while mounting M5 Nylon Washer M5 Security Fixing Screws (min length 40mm)
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Page 12: Electrical Installation
2. Visually inspect the complete device, ensuring the device is free from debris, with no signs of damage or wear. 3. If applicable, visually inspect the alignment and positioning of the guard and mounted actuator to the ATOM interlock for correct alignment as per information and drawings in this document. - Page 13 2. Engage a flat bladed screwdriver into the slot in the head mechanism of the ATOM Switch Body and push downwards to rotate the head to its forward position. The head is now repositioned to allow for entry of the ATOM Actuator assembly.
- Page 14 The manufacturer reserves the right to modify the design at any time and without notice. This guide should be retained for future reference. Figure 7: Dimensional Drawing - ATOM Switch Body only 16.62 5.2 THRU ALL.
- Page 15 Figure 9: Dimensional Drawing - ATOM Interlocking Device (WHEN CENTRALLY ALIGNED) 16.6 5.5 THRU ALL (2 PLACES) 5.2 THRU ALL 5.2 THRU ALL (2 PLACES) (2 PLACES) 33.2 Figure 10: Dimensional Drawing - ATOM Switch Body with Escape Release only...
- Page 16 ATOM Brackets Options Part No. Description ATM-KB Slide angled bracket for sliding gates (not compatible for ATOM with Escape Release (ER)) ATM-KC Angled bracket(s) for hinged gates ATM-KL With handle for sliding gates (not compatible for ATOM with Escape Release (ER))
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