Technical Information - FOCUS
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FOCUS consists of two units - a transmitter unit and a receiver unit. All the optical units are scanned regularly so that all objects that are placed between the transmitter and the receiver will be detected.
If any light beam is interrupted, the dangerous machine movement will be stopped by the outputs from the light curtain opening. the reaction time for the FOCUS varies from 14 ms to 45 ms, depending on the number of beams in the light curtain. The five LEDs in the receiver and the two in the transmitter show the status of the light curtain/grid.
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Safety Outputs OSSD1 and OSSD2
The safety outputs OSSD1 and OSSD2 from the FOCUS consists of PNP transistors. If the load to be switched is alternating current or requires a higher current than 500 mA, an interface safety relay must be used (e.g. RT9 from JOKAB SAFETY). The safety relay converts the transistor output to relay contacts. The FMC-Tina converts the transistor outputs to a dynamic output for connection to Pluto or Vital. Pluto can also work directly with the OSSD outputs.
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Technical Data - FOCUS
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Enclosure................. Aluminum painted yellow
Supply Voltage......................... 24 VDC +/-20%
Power Consumption....................... 10 W max.
(transmitter and receiver connected)
Wavelength on Transmitter LED..........950 m
Profile Dimensions....................... 35 x 45 mm
Operating Temperature Range.......................
-10°C to +50°C
Storage Temperature Range..........................
-10°C to +50°C
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Indication... LEDs on receiver and transmitter
showing alignment, status and power supply
Protection Class......................................... IP65
Certified to Standard......... EN/IEC 61496-1/2
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Cross Section
for Profile of
Light Curtain/Grid
and Muting Grid.....................................
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LED Information - FOCUS
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The LEDs in the receiver indicate the following:
Upper (yellow): Alignment
Break (red): Lit if the light curtain's beam is interrupted
Guard (green): Lit when the entire light field is free
Lower (yellow): Lit during normal operation when there is dirt on the light curtain's front glass. Flashing during normal operation when the OSSD outputs are short-circuited.
Power (green): Lit when the receiver has supply voltage.
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The LEDs in the transmitter indicate the following:
Power (green) Lit when the transmitter has supply voltage.
Status (yellow) Lit when the transmitter is functioning correctly. Flashing or turned off during an error function in the transmitter.
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Reset - FOCUS
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On every FOCUS there are inputs for reset and other functions:
Reset, Alignment and Override
(Bypassing only possible when muting is used.)
Reset Possibilities
Automatic Reset: When the light field is free the outputs are closed directly. (Setting when delivered.)
Manual Reset: FOCUS gives a ready signal when the light field is free and the reset button has been actuated.
Time Reset: During manual reset. To reset the FOCUS a pre-reset button must first be actuated and afterwards within 8 seconds a reset button outside the risk area must be actuated.
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Choice of Reset
Reset alternatives are chosen with double change-over switches in the FOCUS receiver. On delivery the FOCUS is set for automatic reset.
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FOCUS Light Curtain
Standard: Muting (bypassing) partly or completely. Supervised output for muting lamp. Manually supervised or automatic reset.
Option: Fixed or floating blanking.
Muting Unit for FOCUS
 Standard: Muting (bypassing) of light curtain or light grid in one or two directions (T-form). The unit is connected directly to the light curtain/grid via an M12 connection.
Muting unit MF-T with four beams connected directly to the bottom of a light grid with an M12 connection. The entire T-unit is then connected with an M12 connection on the muting unit.
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FOCUS Light Grid
Standard: Muting (bypassing) of one, two, three or four beams. Supervised output for muting lamp. Manually supervised or automatic reset.
FMC FOCUS Muting Connector with M12 Connection
Standard FMC is a small, optimized connection block with M12 inputs. FMC is used for M12 connection of muting sensors, muting lamp, re-reset (for time reset), reset button with indication, override and safety outputs.
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Type
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F4-14-XXX |
F4-35-XXX |
F4-KX4-XXX |
F4-KX3-800 |
F4-KX2-500 |
F4-K1C-500 |
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Resolution
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14 |
35 |
300/400 |
400 |
500 |
500 |
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Protection Field Height (mm)
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150-2400 |
150-2400 |
900/1200 |
800 |
500 |
550 |
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Range (m)
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6 |
15 |
25 or 50 |
25 or 50 |
25 or 50 |
6 |
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Response Time (ms)
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15-45 |
14-26 |
14 |
14 |
14 |
14 |
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Built-in muting for FOCUS is available in three ways:
Separate connection of muting sensors (A and B) directly to the FOCUS receiver unit.
Connection of muting sensors via a FMC.
Pre-made muting unit MFT, which has integral photocells. Unit is manufactured with the same profile as FOCUS.
Muting Lamp
In the Focus receiver unit it is also possible to directly connect a muting lamp It is also possible to connect the muting lamp via a FMC. During bypassing the muting lamp is lit. Bypassing is only possible if the muting lamp is functioning.
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Conditions for Muting
Muting input A must be actuated at least 30 ms before muting input B for muting to be possible.
Muting is activated as long as the conditions are fulfilled.
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