NICE MoonBus MOFOB – adjustable 30° drive photocells (1 pair)
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Description of NICE MoonBus MOFOB – adjustable 30° drive photocells (1 pair)
MOFOB photocells have been replaced.
Their successor EPMB has fully compatible internal electronics (without the option to swivel). If needed, separate replacement covers for MOFOB can be purchased..
Outdoor safety photocells NICE MOFB (technical specifications) are installed opposite each other across the gate opening, or at any point where there is a risk of the gate hitting an obstacle. They create an infrared beam along the optical axis and, when it is interrupted, send a signal to stop the gate. They can only be used with devices that support NICE BlueBUS.
They consist of two synchronised components: a TX transmitter and an RX receiver.
Installing NICE MOFB photocells
1. Mount the photocells on a wall, masonry wall, post or any suitable surface (surface-mounted), at the same height and facing each other along the same axis. The mounting surface must be flat to make it easy to align the photocells:
2. Next, connect the photocells according to the diagram supplied with your gate operator or control unit (see wiring diagram for NICE Robus 400, 600, 1000 - control unit RBA3).
3. Carry out the connected-device recognition procedure (this procedure is supported by every gate operator or control unit with a BlueBUS).
4. To test that the wiring is correct, see the section Checking operation and troubleshooting, or continue below for information on connecting multiple pairs of photocells:
Connecting multiple pairs of photocells NICE MOFB to the NICE BlueBUS
Position the photocells around the gate or door according to the example layouts for complete wiring, and set the jumpers according to the jumper table for the NICE MOFB gate operator. To prevent interference between pairs installed close to each other, follow these example layouts, and ensure the transmitters TX and receivers RX are correctly oriented. Connect the photocells in parallel as shown (polarity does not need to be observed):
If you want the photocells to act as gate openers (see FA1 and FA2 in the example layouts), i.e. to open the gate when a vehicle passes between their optical axes, you need to break connection A on both the TX transmitter and the RX, as shown:
Example layouts for fully wiring multiple pairs of photocells to a gate operator
1. Single-leaf sliding gate
2. Two synchronised sliding gates facing each other
3. Swing gate
4. Sectional garage door
5. Up-and-over garage door
NICE MOFB photocell jumper table for gate operators
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Connecting multiple pairs of photocells to the BlueBUS system is done by setting different jumper combinations; each connected pair must have a unique combination. Make sure there are no two pairs with the same combination on a single BlueBUS data network. Set the jumper to the same position on both the TX transmitter and RX receiver in each photocell pair. If the jumper setting uses only one jumper, always store the other one in the unused-jumper compartment, as shown in the image on the left. |
| Photocell pair designation | Jumper setting using a combination of jumpers |
|---|---|
| FOTO |  |
| FOTO II |  |
| FOTO 1 |  |
| FOTO 1 II |  |
| FOTO 2 |  |
| FOTO 2 II |  |
| FOTO 3 |  |
|
FA1 |
 |
|
FA2 |
 |
If a photocell needs to be replaced for any reason, simply set it to the same jumper as the original one; there is no need to run the device recognition procedure.
Checking operation and troubleshooting NICE MOFB photocell wiring
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After the drive's device recognition procedure, check that the LED on both the TX transmitter and RX receiver is flashing. The LED flashing pattern may indicate the following situations: |
| LED “L” | Situation | What to do |
|---|---|---|
| Off | The photocell is not receiving power or is faulty. | Check that the voltage at the photocell inputs is approximately 8-12V. If the voltage is correct, the photocells are probably faulty. |
| 3 quick flashes followed by a one-second pause | The device has not been recognized by the drive control unit. | Repeat the recognition procedure on the control unit. Make sure that each pair of photocells has a unique address assigned using jumpers . |
| Very slow flashing | The TX transmitter is transmitting regularly The RX receiver is receiving an excellent signal |
Normal operation |
| Slow flashing | The RX receiver is receiving a good signal | Normal operation |
| Fast flashing | The RX receiver is receiving a weak signal | Normal operation. However, it is best to check the alignment of the TX transmitter and RX receiver and make sure the covers are clean. |
| Very fast flashing | The RX receiver is receiving a very weak signal | Operation is still normal, but marginal. It is best to check the alignment of the TX transmitter and RX receiver and make sure the covers are clean. |
| On | The RX receiver is not receiving any signal | Make sure the LED on the TX is flashing slowly. Check that there are no obstacles in the optical path between the TX transmitter and RX receiver. Check the alignment of the TX and RX. |
NICE MOFB photocell technical specifications
| Product type | Detector for automatic swing gates, sliding gates and garage doors, Type D according to EN 12453, consisting of a transmitter TX and a receiver RX. |
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| Technology | Direct TX-RX optical interpolation using a modulated infrared beam. |
| Power supply/output | The device can only be connected to a data network that supports the NICE BlueBUS, from which it receives electrical power and sends an output signal. |
| Power consumption | 1 BlueBUS unit |
| Detection capability | Opaque objects larger than 50 mm crossing the optical axis between the TX transmitter and RX receiver at a speed below 1.6 m/s. |
| TX transmitter beam angle | 20° +-25% |
| RX receiver angle of reception | Approximately 20° |
| Normal range | 15 m with a maximum TX transmitter and RX receiver axis misalignment of +-5%, including in adverse weather conditions |
| Maximum range | 30 m with a maximum TX transmitter and RX receiver axis misalignment of +-5% in ideal weather conditions |
| Addressing | 7 pairs with a safety function and 2 pairs with an “Open” command function |
| Use in acidic or saline environments, or in areas with an increased risk of explosion | No |
| Installation | Vertical wall mounting |
| Protection rating | IP55 |
| Operating temperature | -20°C to 55°C |
| Dimensions | 69x78x25mm |
| Weight | 50g |
Wiring NICE MOFB photocells NICE MOFB with the drive NICE Robus 400, 600, 1000
Inside the photocells NICE MOFB for gate drives
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