Directives Compliance; Control Reliability - Honeywell FF-SB12 Series Installation Manual

Directives Compliance

Machine Directive 98/37/EC
Low Voltage Directive 73/23/EC
Electromagnetic Compatibility Directive 89/336/EC

Control Reliability

"Control Reliability" means that "the device, system or interface shall be designed, constructed and installed
such that a single component failure within the device, interface or system shall not prevent normal stopping
action from taking place but shall prevent a successive machine cycle." (ANSI B11.19-1990, 5.5)
OSHA 29 CFR 1910.217 states that "the control system shall be constructed so that a failure within the
system does not prevent the normal stopping action from being applied to the press when required, but does
prevent initiation of a successive stroke until the failure is corrected. The failure shall be detectable by a
simple test, or indicated by the control system."
Honeywell has developed new patented self-checking techniques which combine reliability with safety. The
FF-SB Series light curtains function with dual channel redundancy and positive self-checking monitoring. This
means that a faulty component in our system will make the safety barrier fail in a safe mode.
This design meets the highest requirements (Category 4 Electrosensitive Protective equipment) as described
in the IEC 61496 European project norm. Category 4 safety light curtains are designed and manufactured in
such a way that a single breakdown or an accumulation of failures does not lead to the loss of the safety
function when a dangerous situation arises. The safety function is maintained on a permanent basis.
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107062-12 EN FR26 GLO 501 Printed in France