Operation Manual
GuardShield Safe 4
2. Introduction
GuardShield Safe 4 safety light curtains are active
optoelectronic protective equipment AOPE type 4
with object detection capability of 14 mm or 30 mm.
GuardShield Safe 4 has built-in fully redundant self-
monitoring circuitry and complies to annex VI of the
European Machinery Directive EC/98/37 and IEC
61496 as a safety component. GuardShield Safe 4 is
a control reliability device as well as defined in ANSI
B11.19-1990, 5.5 and OSHA 29 CFR 1910.212.
2.1. System design
GuardShield Safe 4 light curtains consist of a
transmitter and a receiver (
Figure 1
).
The transmitter as well as the receiver of GuardShield
Safe 4 have a standard built-in intelligent laser
alignment system ILAS.
This allows a much easier adjustment during installation
and system testing compared to conventional safety
light curtains. The ILAS may also be used as a
vibration indicator at the installation.
Figure 1: Main system parameters
The products are a modular construction housed in a
very compact and sturdy extruded aluminium profile.
2.2. Special features
The outstanding features of the safety light curtain
systems of the GuardShield Safe 4 are:
Integrated laser alignment (ILAS)
Max. 256 beams per system
Finger (14 mm) and hand protection (30 mm)
Large range with a compact profile type:
14 mm resolution: 0 m to 6 m
30 mm resolution: 0 m to 6 m
Tolerant to dust, soiling, pollution
Short circuit protected semiconductor
outputs
Built-in diagnostic LEDs
Very compact design: 30 x 40 mm (1.2” x 1.6”)
Optical synchronisation, no electrical
cable needed between transmitter and
receiver
Maintenance-free and cost effective
3. Applications
3.1. Typical applications
GuardShield Safe 4 systems are used for (
Figure 2
):
Entry / exit safeguarding
Point-of-operation safeguarding
Hazards area safeguarding
Combination of entry and area
safeguading
Combination of entry, area and point-of-
operation safeguarding
Typical areas of applications are:
Robotic assembly line
Welding robots
Processing machinery
Rotation machines
Conveyor machines
Automated paint shops
Entry / exit of automatic storage facilities
Typical markets are:
Automotive
Apparatus
Semi conductor industry
Metal processing
Paper processing
Wood processing
Glass manufacturing
Textile industry.
5
Protection height
Intelligent Laser Alignment System ILAS
Intelligent Laser Alignment System ILAS
Detection capability
(resolution)
Operating range