Introduction; System Design; Special Features - Cedes Safe2+ Operation Manual

Operation Manual
2.

Introduction

Safe4 safety light curtains are active optoelectronic
protective equipments AOPE type 4 with object de-
tection capability of 14 mm or 30 mm. Safe4 has a
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 com-
ponent. Safe4 is a control reliability device as well as
defined in ANSI B11.19-1990, 5.5 and OSHA 29
CFR 1910.212.
Safe2+ safety light curtains are active optoelectronic
protective equipments (AOPE) type 2 and comply to
annex IV of the European Machinery Directive
EC/98/37 and IEC 61496 as a safety component.
Moreover the systems comply as a control reliability
device as defined in ANSI B11.19-1990, 5.5 and
OSHA 29 CFR 1910.212.
A special feature of the Safe2+ system compared to
ordinary safety light curtains of type 2 is that the
controllers have a built-in fully redundant self-
monitoring circuitry. This feature makes the usual
implementation of a self test at the beginning of each
machine start unnecessary. The safety function of
each Safe2+ light curtain is never influenced in any
moment by the self test monitoring.
The big advantage for you as a user is that you can
run the Safe2+ system in the self test mode. So you
do not have to think about connecting and installing
an external test. You just have to wire a system cor-
responding to a type 4 system.

2.1. System design

Safe2+ or Safe4 light curtains consists of an emitter
and a receiver (Figure 1).
The emitter as well as the receiver of Safe 4 have a
standard built-in intelligent laser alignment system
ILAS.
By request the ILAS can be supplied in the Safe2+
safety light curtain.
This allows a much easier adjustment during installa-
tion and system testing compared to conventional
safety edges. The ILAS may also be used as a vibra-
tion indicator at the installation.
Intelligent Laser Alignment System ILAS
Intelligent Laser Alignment System ILAS
Figure 1: Main system parameters
© CEDES Safety & Automation AG / June 2008
Detection capability
(resolution)
Operating range
The products are a modular construction housed in a
very compact and sturdy extruded aluminium profile.
If space is limited, the controller may be separated
from the sensor by using an interconnection cable
(Figure 2).
Figure 2: Integrated and separated Controller

2.2. Special features

The outstanding features of the safety light curtain
systems of Safe2+ or Safe4 are:
! Integrated self test mode, which make an ex-
ternal testing unnecessary
! Configuration
alignment ILAS (as an option for Safe2+)
! Finger (14 mm) and hand protection (30 mm)
available
! Wide dynamic range with a compact profile
type:
14 mm resolution: 0 m up to 9 m
30 mm resolution: 0 m up to 18 m, optional 6
or 5 up to 30 m
! Max. 256 beams per system
! Tolerant to dust, soiling, pollution
! Short circuit protected semiconductor outputs
! Electrical interface compatible to industry
standard
! Built-in diagnostic LED or optical interface
(OptiLink) for quick trouble shooting
! Very compact design: 30 x 40 mm (1.2" x 1.6")
! Very compact design for the whole dynamic
range
! Wide standard product range for resolution,
protective height, type of application
! Separate controller as an option
! Several protective fields by cascading
! Customer specific version on request
! Optical synchronisation, no electrical cable
needed between emitter and receiver
! Modern technology
! Insignificant power consumption
! Maintenance-free and cost effective
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Safe2+ / Safe4
Standard Controller
separated
with fitted intelligent laser
3