Honeywell SYA14 Series Manual page 92

FF-SB Installation Manual
IMPROPER SYSTEM PERFORMANCE
• Consult local safety agency before designing a machine control system.
• Comply with local safety requirements when designing machine control link, interface and all
control elements that affect safety.
• Install two independent safety relay contacts into machine control stop circuit controlled by
FF-SB Series light curtain.
• Ensure two independent stop circuit relays have mechanically linked contacts that prevent
contact overlapping in the event of a welded contact.
Failure to comply with these instructions could result in death or serious injury.
FF-SB12, FF-SB14, FF-SB15 and FF-SB30 Series light curtains are designed so a
malfunction or an interruption of the sensing field will cause the light curtain to generate a stop
signal within a maximum of 30 milliseconds. This stop signal will be generated automatically if
a malfunction occurs in the light curtain. All other machine control components that affect
safety should also be designed to the same high level of operation.
IMPROPER MACHINE REACTION
• Ensure the machine control is capable of stopping the machine at any point in the cycle.
• Ensure that a loss of power does NOT impair stopping action of machine.
Failure to comply with these instructions could result in death or serious injury.
Figure 1-1 Point-of-operation Guarding (use FF-SB12, 14 or 30 only)
Point-of-operation is defined as that area where a machine performs work (such as cutting,
shaping, boring, or forming) on a material.
FULL REVOLUTION MECHANICAL POWER PRESSES CANNOT BE STOPPED IN MID-
STROKE (OSHA 29CFR 1910.217).
revolution mechanical power presses.
Failure to comply with these instructions will result in death or serious injury.
For application help: call 1-800-537-6945
Do NOT use FF-SB Series light curtains on full
Honeywell • MICRO SWITCH Sensing and Control 11