logo elektroda
logo elektroda
X
logo elektroda

Faac 740 Gate Drive: Power Issues, Slow Operation, and Wicket Option Activation Concerns

ordec 20541 11
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16817981
    ordec
    Level 10  
    Posts: 31
    Rate: 4
    Hello
    I installed the gate drive and, as in the title of the topic "Faac 740 gate drive, it behaves as if it had no strength", the motor sounds as if it was buzzing and the gate very slowly opens or closes.
    It occurs under various circumstances (moments), sometimes in the middle of the cycle, at the end ... (force set to max - 50)
    Currently, when launching from the remote control, it will open to 10cm and the strange behavior described above begins, I will add that by opening the gate option from the remote control everything is ok, it will open to the set width and close again.

    The second problem is that I cannot activate the wicket option with an additional switch plugged into the connector 2 and 7 with the radio receiver connected to these connectors (see the drawing). Before adding the radio receiver, both wicket connector 2 and 7 and gate connector 1 and 7 were working.

    I am asking for help, especially regarding the first topic.
    Attachments:
    • Faac 740 Gate Drive: Power Issues, Slow Operation, and Wicket Option Activation Concerns 1579214300_1505840126.jpg (139.3 KB) You must be logged in to download this attachment.
  • ADVERTISEMENT
  • #2 16818017
    gkwiatkowski
    CCTV and Stationary Alarms specialist
    Posts: 4630
    Help: 646
    Rate: 1210
    ordec wrote:
    The second problem is that I cannot activate the wicket option with an additional switch plugged into the connector 2 and 7 with the radio receiver connected to these connectors (see the drawing). Before adding the radio receiver, both wicket connector 2 and 7 and gate connector 1 and 7 were working.


    The receiver has normally closed or normally open output contacts?
  • #3 16818340
    luk9753
    Level 24  
    Posts: 1145
    Help: 63
    Rate: 144
    I suggest starting with replacing the capacitor, it affects the "power" of the actuator.
  • #4 16818532
    ordec
    Level 10  
    Posts: 31
    Rate: 4
    Receiver connected as follows:
    NO - from 2
    COM with 8 (not 7 as I wrote earlier, but 7 and 8 is "-". Tested with both 7 and 8)
    There is still an NC contact but it is free.

    As for the capacitor, it is (10uF) and it is a new drive, and as I wrote earlier, the gate starts normally, the entire gate is only 10 cm and slows down the engine.
    If it was a capacitor, it seems to me that the gate would not open either and the same would happen as at the gate.
  • ADVERTISEMENT
  • #5 16818555
    marqqv
    Level 32  
    Posts: 1758
    Help: 162
    Rate: 606
    Write what kind of gate is it? What big-heavy old-new structure? Because you don't write anything about it.
  • #6 16818616
    ordec
    Level 10  
    Posts: 31
    Rate: 4
    Gate 4 meters clear + counterweight, filled with boards, weight certainly not more than 300-350 kg. He is 5 years old and now I added the drive and extended the counterweight and added the third trolley because the gate was sloping apart, the spacing of the trolleys was too small (this is how it looks like assembled by professionals). In my opinion, the manual opening is quite light.
    Attachments:
    • Faac 740 Gate Drive: Power Issues, Slow Operation, and Wicket Option Activation Concerns 20150822_164536.jpg (2.93 MB) You must be logged in to download this attachment.
  • Helpful post
    #7 16819783
    kotbury
    Gantry automation specialist
    Posts: 9488
    Help: 2080
    Rate: 3575
    Quote:
    Before adding the radio receiver, both wicket connector 2 and 7 and gate connector 1 and 7 were working

    Check "dry" (with a meter and after connecting to an external power supply) what is happening with the NO and NC contacts. The defect clearly points to the receiver.
    Maybe the receiver is 12V and it's freaking out? (FAAC gives over 24V)

    As for slow closing - one thing is on my mind - does your gate not have the rP parameter in the menu - i.e. deceleration before the limit switches (if it has and you have not set this parameter or exactly the t parameter, i.e. the exact time of the gate stroke + 2-5 seconds, they will be miracles) - if you have it, turn it off to hell (value 00) because it works uniquely and uncertainly, and only use the limit switch (rA).
    Secondly, if you do not have an encoder (such an overlay on the motor), check that you do not have the EC parameter enabled or set - it should be either OFF or 00 (depending on the version of the control unit)

    This gate should not weigh more than 150 kg (if you can easily lift one side and you are not a bodybuilder - it will be), so for this drive a feather - unless it is jammed on the wheelchairs - check.
  • ADVERTISEMENT
  • #8 16820716
    ordec
    Level 10  
    Posts: 31
    Rate: 4
    Hello
    As for the weight, I probably exaggerated with these 300 kilograms, it will be as you write. Rather, it does not jam on the wheelchair, it walks lightly. The devil is that I turn on the gate again and again and then the gate (from the same position of the gate, i.e. closed all the way) and the gate opens but the gate does not (10 cm and then it opens very slowly).
    As for these rP and rA parameters, they are factory set to 00 and I think I left them that way, but the EC parameter (I don't have the encoder, I was thinking about the installation) is factory set to 99, i.e. active ("0-99" - active, "00 "- turned off) and here I am not 100% sure if I turned off, maybe I left the factory settings, tomorrow I will check it too dark today.

    Regarding the radio, it is the RP2 868SLH radio, according to the manufacturer's data, the power supply is 20-30Vdc, so probably ok. As for checking with a meter with an external power supply of this receiver, it will be rather a problem (but I will try to figure it out somehow).
    Thanks in advance so far.

    Added after 14 [minutes]:

    Me again.
    And what will happen when I replaced the NO connectors with NC on the radio?

    and the receiver will be connected as follows:
    NC - with 2 and COM with 8 and the NO contact will remain free. Will that not be the problem?
    I'll be checking tomorrow.
  • Helpful post
    #9 16820813
    gkwiatkowski
    CCTV and Stationary Alarms specialist
    Posts: 4630
    Help: 646
    Rate: 1210
    ordec wrote:

    Me again.
    And what will happen when I replaced the NO connectors with NC on the radio?

    and the receiver will be connected as follows:
    NC - z 2 and COM z 8 and NO contact pos


    Then the additional opening button will not work, and the opening from the remote control will be delayed by a second or a few seconds.
  • ADVERTISEMENT
  • #10 16823034
    ordec
    Level 10  
    Posts: 31
    Rate: 4
    Welcome back.
    Regarding topic 2 - the NO connector was swapped with the NC on the radio, the gate now opens from an additional switch :D

    Regarding topic 1, I have the following functions set:
    Basic
    - LO - AP
    - PA - 45
    - FO - 50
    - dl - -3
    - ST - 00 (gate closed during checking, i.e. ok)

    Advanced
    - because - y
    - br - 05
    - FS - no
    - PF - no
    - Ph - no
    - SA - no (this function is not in the manual, I don't know what it is)
    - SP - 00
    - oP - no
    - EC - 00
    - rP - 10 (here I changed to 00)
    - rA - 00
    - AFTER - 03
    - t - 30
    - AS - no
    - nc - 00
    After this change to "rP" the gate went, I made a dozen or so moves and so far it's ok :D
    I will continue to observe what will happen now.
    I noticed one more problem with the flash (it is lit with a constant light both when opening and closing - it should flash here), a 230V lamp, and this "SA" function bothers me. What is it?
  • #11 16824966
    kotbury
    Gantry automation specialist
    Posts: 9488
    Help: 2080
    Rate: 3575
    The lamp is powered by continuous 230 V and the flashing generates an interrupter located in the lamp. Either you used a lamp without a circuit breaker or it is fired.
    I don't know about SA. Even the Italian version of the extended firmware manual does not have this function. Why don't you shoot the Faac switchboard out of curiosity?
  • #12 16831300
    ordec
    Level 10  
    Posts: 31
    Rate: 4
    welcome back
    The lamp has a built-in switch (jumper) inside, after switching it it started flashing, so approx.
    Thanks to everyone for your help.
    I close the topic.

Topic summary

✨ The discussion revolves around issues with the FAAC 740 gate drive, specifically concerning power deficiencies and slow operation. The user reports that the gate motor buzzes and operates sluggishly, only moving 10 cm before slowing down, despite the force setting being at maximum. Various troubleshooting suggestions are provided, including checking the receiver's output contacts, replacing the capacitor, and adjusting parameters related to gate operation. The user also faced challenges activating the wicket option with an additional switch, which was resolved by swapping the NO and NC connectors on the radio. After adjusting the rP parameter, the gate's performance improved. Additionally, a problem with a continuously lit lamp was addressed, which was resolved by adjusting the lamp's internal switch. The user expresses gratitude for the assistance received and indicates that the issues are being monitored.
Generated by the language model.

FAQ

TL;DR: If a FAAC 740 runs, then slows/buzzes after ~10 cm, disable rP (set 00) and keep EC=00; FAAC control outputs are over 24 V; “deceleration before limit switches works uncertainly.” [Elektroda, kotbury, post #16819783]

Why it matters: This FAQ helps DIYers quickly fix weak/slow FAAC 740 operation and restore wicket/pedestrian opening with correct wiring and settings.

Quick Facts

Why does my FAAC 740 buzz and crawl after it moves about 10 cm?

Check two settings. Turn rP (pre-limit deceleration) to 00. Set EC to 00 if no encoder is fitted. “Deceleration before limit switches works uncertainly.” Also verify the gate rolls freely and isn’t binding on the trolleys. These steps fixed similar symptoms in the thread. [Elektroda, kotbury, post #16819783]

How do I disable rP and EC on the FAAC 740 (quick steps)?

  1. Enter advanced menu on the 740 controller.
  2. Set rP = 00 and EC = 00 (no encoder).
  3. Set t to the exact full stroke time plus 2–5 seconds, then test. These parameters prevent false slowdowns and align travel timing. [Elektroda, kotbury, post #16819783]

Does the start capacitor affect the FAAC 740’s force?

Yes. A tired or undersized start/run capacitor reduces torque and causes slow or stalled travel. Replace the capacitor if symptoms persist after settings changes. A user recommendation in the thread highlights the capacitor’s effect on “power.” This is a common, low-cost fix. [Elektroda, luk9753, post #16818340]

What happens if I wire the radio receiver using NC instead of NO?

Your additional opening (wicket) pushbutton will stop working, and remote opening may be delayed by a second or a few seconds. This behavior matches how NC logic holds the input until the relay releases. Use NO for typical momentary triggers unless you have a specific reason to invert logic. [Elektroda, gkwiatkowski, post #16820813]

How can I restore the wicket (pedestrian) function after adding an RP2 868SLH receiver?

One installer solved it by swapping the receiver outputs to NC on terminal 2 and COM to terminal 8. After that change, the wicket input worked again. Note that changing to NC has side effects, so confirm your desired behavior per your control board logic. [Elektroda, ordec, post #16823034]

My 230 V warning lamp stays solid. How do I make it flash?

The FAAC board supplies steady 230 V. Flashing must come from the lamp’s internal flasher/interrupter or jumper setting. Use a lamp with a built‑in flasher and set its jumper correctly. If the interrupter is faulty or missing, the lamp will remain solid. [Elektroda, kotbury, post #16824966]

What should I set for the t (time) parameter on the FAAC 740?

Measure the actual gate travel time end‑to‑end, then set t to that time plus 2–5 seconds. This buffer helps the controller complete travel reliably. Incorrect t values can cause premature slowdowns or overtravel. Adjust and test until the motion is smooth. [Elektroda, kotbury, post #16819783]

What does the EC parameter do on the FAAC 740?

EC enables encoder logic. With no encoder fitted, leave EC OFF (00). Leaving EC active without an encoder can cause erratic slowdowns or stops. Turn EC back on only after installing and calibrating the encoder accessory. [Elektroda, kotbury, post #16819783]

Should I use rA (limit switches) instead of rP deceleration?

Yes. Use rA with physical limit switches for consistent stopping. Disable rP (set to 00) when rA is in use. Mixing rP with imprecise timing can produce unpredictable slowdowns. Limit switches give repeatable endpoints and reduce nuisance faults. [Elektroda, kotbury, post #16819783]

How heavy can my sliding gate be for a smooth 740 install?

The discussed gate should not exceed about 150 kg for feather‑light movement with this drive. Heavier or poorly rolling gates can strain the motor and trigger protective slowdowns. Always verify trolley condition and alignment before blaming electronics. [Elektroda, kotbury, post #16819783]

Why did my pushbutton stop working after I added a radio receiver?

Mismatched NO/NC wiring or relay behavior can block the wicket input. Test the receiver’s NO and NC with a meter, and confirm supply voltage compatibility. A 12 V receiver powered from a >24 V source can malfunction and “freak out.” [Elektroda, kotbury, post #16819783]

How do I validate that my fixes actually worked?

Run multiple full cycles after changes. One installer reported a dozen or so successful moves after setting rP to 00. If performance holds across repeated starts from closed, your parameters and wiring are likely correct. Retest after any change. [Elektroda, ordec, post #16823034]

What is “wicket” mode on a sliding gate?

Wicket mode triggers a partial opening for pedestrian access using a dedicated input (e.g., terminals 2 and 7 on this setup). It opens to a preset width, then recloses automatically. Ensure the radio or button maps to the correct wicket input. [Elektroda, ordec, post #16817981]

What does the mysterious SA parameter mean on my board?

SA is not documented in the referenced extended firmware guide, according to a contributor. If it appears on your unit, avoid changing it without official documentation. It is likely irrelevant to basic open/close logic. [Elektroda, kotbury, post #16824966]
Generated by the language model.
ADVERTISEMENT