Honeywell SYA14 Series Manual page 651

FF-SRD5985 Series
APPLICATION WARNINGS
IMPROPER INPUT CONNECTIONS
•
To ensure the proper operation of the FF-SRD5985, always connect the two safety device outputs to the input channels
of the safety door monitor module.
IMPROPER AUTOMATIC RESTART MODE
•
As the module operates in an automatic restart mode, a part of the safety control circuitry must keep the latched function
engaged.
•
To keep the latched function engaged and maintain control reliability, use control reliable safety components
(redundancy, self checking) only. Do NOT use a programmable logic controller (PLC).
IMPROPER PUSH BUTTON USE
•
Ensure the location of the manual restart function is outside of the danger zone and provides the operator with a clear
view of the zone.
•
A Programmable Logic Controller must NOT be able to override a manual restart function.
CONTACT WELDING
•
Always protect all safety contacts with correctly rated fuses. These fuses must never exceed the rated FF-SRD5985
safety output capability to prevent contact welding.
IMPROPER EXTERNAL SAFETY RELAY MONITORING
•
When using additional safety relays, always connect one normally closed contact of each relay in series inside the Final
Switching Device (FSD) monitoring loop circuit (Y1/Y2). This connection will ensure correct operation of the external
relays after each FF-SRD5985 activation.
•
If the FF-SRD5985 is not activated often, the customer is responsible for accomplishing any additional test procedures of
the external safety components. For instance, this testing can be done by removing the power from the FF-SRD5985
every day at machine power up.
IMPROPER ARC SUPPRESSOR INSTALLATION
•
Never install an arc suppressor across the safety output contact of the safety control module.
•
Always install arc suppressors across the coils of external safety relays.
IMPROPER SYSTEM SAFETY LEVEL
•
Multiple machine locations and/or applications can be protected by using several safety components (more than two)
connected to one FF-SRD5985 control module. To ensure maximum safety, always use devices approved for safety
applications. Keep in mind that this type of installation will degrade the overall safety level of the solution.
Failure to comply with these instructions could result in death or serious injury.
PK 107013-01-EN FR26 GLO 398 Printed in Germany
PK107013-01
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