Safety Isolation System
ElectroGuard
Overview
Status Communication Capability to a Remote PLC
• Optional Remote I/O via Flex modules. Communication can be
via the DeviceNet communication platform or the Remote I/O
communication platform.
Available from 23-1200 Amperes.
Specifications
Approvals
C
UL
US
Standards
The ElectroGuard Safety Isolation System is used in place of a
disconnect switch for Lockout and Tagout (LOTO). It uses power
contactors and Remote Lockout Stations to accomplish LOTO.
Isolating the electrical energy usually involves calling an electrician to
turn “Off ” the main disconnecting means. The electrician would
then perform LOTO of the disconnecting means operating handle.
This same procedure is required to perform cleaning, maintenance,
setup, lubrication or adjustment. Machines or processes with
multiple access points may require operator/maintenance
intervention several times a shift (perhaps as often as 60 times per
shift).
To perform these activities, the operator/maintenance person may
be required to place part of his or her body into an area not accessed
during normal operation. This may cause serious or fatal injury if
LOTO procedures are not followed.
The ElectroGuard Safety Isolation System allows the machine
operator to safely and quickly accomplish LOTO with dramatically
reduced downtime.
Provides Energy Isolation
• Power isolation accomplished by means of contactors rather than
disconnect switches.
• Uses redundant, independent and self-monitoring circuits to
detect a system fault.
• Prevents accumulation of faults in order to maintain the integrity
of the safety system.
• Tamper-resistant design.
Convenient Remote Lockout Station
• Allows remote isolation of the electrical power to the machine or
process—machine operator simply turns “Off ” a Remote
Lockout Station.
• A light on the Remote Lockout Station indicates that the three-
phase power source to the machine or process has been isolated.
No Light Means No Entry.
• If a fault occurs in the Safety Isolation System, the “System
Isolated” light on the Remote Lockout Stations will not
illuminate.
• Easy Lockout/Tagout.
Certified by TUV to meet requirements of Category 4
• Certified by TUV to meet Category 4, the most stringent safety
category defined within International Standard EN 954-1/ISO
13849-1.
• Subjected by TUV to rigorous third party testing and verification
of the Failure Mode & Effect Analysis (FMEA).
Estimated Component Life
Remote Lockout Station
Power Contactors
(Isolation & Grounding)
Environmental
Storage Temperature
Operating Temperature
Relative Humidity,
Non condensing
Power Panel Construction
Listed Industrial Control Panel;
TUV Rheinland certified; CE marked
for all applicable directives
IEC/EN 60204-1; IEC/EN 60439-1;
Category 4 to International Standard
EN 954-1/ISO 13849-1; 98/37/EC
Machinery Directive; 89/336/EC EMC
Directive; 73/23/EC Low Voltage
Directive; Fulfils the function of an
energy isolating device in accordance
with the conditions set forth in the
FedOSHA letter of interpretation
pertaining to Section 1910.147(b);
Cal/OSHA 3314.
250,000 operations
23A - 85A: 2,000,000 operations
110A-1200A: 1,000,000 operations
-10°C...+60°C (14°F...140°F)
0°C...+40°C (32°F...104°F) (Ambient)
90% Relative Humidity
Tamper-resistant Control Module
23A-85A systems support up to 4
Remote Lockout Stations without an
Expansion Module
110A-1200A systems support up to 6
Remote Lockout Stations without an
Expansion Module
Control Module with viewing window
for visual check of status indicator lights
Top and bottom 25.4mm (1.0in)
conduit entry (removable plug in
bottom conduit hole)
Sealing provision for tamper-resistance
Operating handle accepts up to 3
padlocks
4 port—supports up to 4 lockout
stations
• allows the systems to
accommodate up to 24 Remote
Lockout Stations
10 port—supports up to 10 lockout
stations
• allows the systems to
accommodate up to 60 Remote
Lockout Stations
Window for viewing status indicator
lights; Sealed for tamper-resistance
Remote Lockout Stations
Safety Mats,
➊
Light Curtains,
➊
E-Stop Stations,
➊
Proximity Switches,
➊
Photo Switches
➊
+10%, -15% of the line voltage
Remote Lockout Station
Construction
Expansion Module
Construction
Safety Isolation Sys. Inputs
Standard Inputs from
Optional Inputs from
Rockwell Automation
Safety Products
System Operational Limits
➊
Use of any of these input devices will not meet Lockout/Tagout (LOTO)
requirements.
12-2
ALLEN-BRADLEY [ Allen-Bradley ]
