Honeywell SYA14 Series, Manual

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107022-14 EN FR26 GLO 0100 Printed in Germany 30
Per the EN 61496 (previously pr EN 50 100 - part 1) standard, the control unit allows installation of lamp indicators as
follows:
•
A green lamp indicator must be connected between the ON terminal and ground. The COM terminal should be
connected to the +24 volt power supply. The ON and COM terminals are located on the control unit circuit board. When
the lamp illuminates (ON), no beams are interrupted, no failures are detected and the output NO contacts are closed.
•
A red lamp must be connected between the OFF terminal and ground. The COM terminal should be connected to the
+24 volt power supply. The OFF and COM terminals are located on the control unit circuit board. When the lamp
illuminates (ON), at least one beam is interrupted, or a failure is detected and the output NO contacts are opened.
Both lamps operate complementarily.
4.6 Connecting The Test Input
POWER APPLIED TO MACHINE CONTROL SYSTEM
Before intervention, turn off and disconnect power from FF-LS Series safety light curtain and machine.
Failure to comply with these instructions could result in death or serious injury.
The test input provides a way to test the functionality of the entire machine safety system. The connection of the test
input to an external 24 Vac/dc supply turns off (opens the NO contacts of the FF-LS safety light curtain) the
equipment even if the beams have not been broken. Once connection between the test input and the external 24
Vac/dc supply is established, ensure that every component of the machine safety control circuitry is operating
correctly.Notes:1)
External 24 Vac/dc supply: 24 Vac/dc, ±25 % (48 to 62 Hz)2) Photocouplers provide an electrical
isolation from the rest of the system3) Minimum closing time is 100 ms.
4.7 Setting The Mode Of Operation
POWER APPLIED TO MACHINE CONTROL SYSTEM
Before intervention, turn off and disconnect power from FF-LS Series safety light curtain and machine.
Failure to comply with these instructions could result in death or serious injury.
IMPROPER MACHINE RESTART
•
Clearing the sensing zone must not start dangerous machine operation. When restarting the machine operation, a
normal machine control sequence must be used.
•
If electrical power is removed from a machine, its restoration must not initiate dangerous machine operation; a normal
machine control sequence must be used.
•
If a safety light curtain is activated, the machine must NOT be able to restart.
•
A Programmable Logic Controller must NOT be able to override a manual restart function.
Failure to comply with these instructions could result in death or serious injury.
The FF-LS Series safety light curtain may operate in one of two following modes:
•
In the Automatic mode, the FF-LS starts automatically at power up and restarts automatically after any intrusion in the
sensing field.
•
In the Start and Restart Interlock (manual) mode, pushing an external push button (customer supplied) is necessary to
restart the equipment at power up and after any intrusion into the sensing field.
To select the proper mode of operation do the following:
1. Remove the protective plastic covers located on each side of the control unit face plate lid using a small screwdriver
(small recess in covers).
2. Loosen four captive screws securing the face plate lid on the control unit housing and remove the lid.
3. Locate the internal restart mode selector near the buzzer switch (see figure 4-4).
4. Select start and restart interlock (manual) mode (H for Hold) or automatic restart mode (N for Normal) as required.
5. Select buzzer option as required.
6. Reinstall lid, tighten screws and snap the protective plastic covers back in place.