FAAC 844 Installation Manual

Also see for 844: Manual Manuals Manual

Contents

14direction in order to allow for braking distance. Spot-weld or mount the limit switch plate in this position.You repeat this same procedure for the limit switch forthe gate’s closing travel using the other end of the gateleaf. Put the gate leaf in the closed position and use theFCC light (or Close LED) as the trigger indicator. Notethat each limit switch plate must be located 1-3/4 in. (45mm) in advance of the limit switch trigger point toallow for smooth braking.Connect the Limit Switches to the Control Panel:Next, you need to wire the limit switch sensors to thecontrol panel according to your gate installation (seeFigures 13 and 17 for the 844 MPS and Figure 15 forthe 844 B/C).Check the Limit Switches for Correct Positioning:To check limit switch positioning, close the gate,disengage the motor with the Manual Release, andselect the E1 or B operating logic on the control panel(see page 6). Turn on the power and generate an inputsignal. The motor will turn in the opening direction butthe gate will not move because the motor is disengaged.Note: On the 844 MPS (only) control panel, anattached warning light flashes every 1/4 sec and thecontrol panel makes a rapid clicking sound if thelimit switch cable becomes disconnected or if bothlimit switches are triggered at the same time.Correct the cabling and/or cycle your main poweroff then on and/or press the Reset button to correctthe alarm condition on the control panel.Next, move the gate by hand in the opening direction.As the limit switch plate moves by the limit switch, themotor should turn off. If the limit switch plate does notstop the motor from running when it passes the near endof the limit switch assembly, change the cable connec-tion for the limit switches (see Figure 13 or 15).Generate another input signal to start the motor in thedirection of the gate’s closing. Move the gate by hand tothe fully closed position. The limit switch should againshut off the motor.If the limit switch is functioning properly, engage theoperator’s motor with the Manual Release lever andsignal the gate to operate. If the gate operates properly,the limit switch plates can be welded securely to theiranchoring points.(a) left closing rack and pinion gate(b) right closing rack and pinion gate(c) left closing chain gate(d) right closing chain gateJ3 J4J3 J4J3 J4J3 J4Figure 13. On the 844 MPS control panel,connect the limit switch ribbon cable foryour rack and pinion or chain drive gateUpswung.com