Start And Restart (Cycle) Interlock Mode Of Operation - Honeywell SYA14 Series Manual

Installation

Start and Restart (Cycle) Interlock Mode of Operation

The start and restart interlock mode of operation causes the system to remain in an alarm
condition after power up or a beam interruption. To restart the equipment, a normally open
(N.O.) contact of a push button (P/B) or manual restart must be actuated (see figure 2-10).
Figure 2-10 Wiring Diagram
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IMPROPER PERIMETER PROTECTION
• Design control circuit to allow a manual restart before further machine operation can occur.
• Locate manual restart outside of danger zone where operator has a clear view of zone.
• Operator should NOT be able to reach manual restart from within danger zone.
• Design control circuit to prevent Programmable Logic Controller from overriding manual
restart.
• Install two FF-SPS4 perimeter devices (two beam minimum) per safety application.
Failure to comply with these instructions could result in death or serious injury.
The FF-SPS4 Series perimeter guarding system is factory set (see figure 2-11) to operate in
the start and restart interlock mode to control access to a dangerous zone. The restart push
button must be installed outside the dangerous area. If an application requires an alternate
mode of operation (start interlock and automatic reset), consult the Application Center for
additional information.
Figure 2-11 Start and Restart Interlock, Start interlock and Automatic Reset Switch
Setting
Start & Restart
interlock
(Factory setting)
Start interlock *
Automatic reset **
22 Honeywell • MICRO SWITCH Sensing and Control
FF-SPSR
50 mA/12 VDC
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N.O. P/B*
100 ms < t < 3,4 s
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FF-SPS4 Series Installation Manual
To restart the perimeter safety system, press
and release the P/B within the specified time
frame. If the P/B is not pushed, the safety
system remains in an alarm condition. Restart
is only possible if the sensing beam is not
interrupted (no object is present). A short press
and release of the P/B is enough to restart the
system. The safety system restarts after the
release of the push-button.
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Receiver FF-SPR
For application help: call 1-800-537-6945
Mode of delivery