RPM SENSOR ASSEMBLY
K76-35664
To reduce the risk of SEVERE INJURY or DEATH:
• Disconnect ALL electric and battery power BEFORE performing ANY service
or maintenance.
• Without a properly installed safety reversal system, persons (particularly small children)
could be SERIOUSLY INJURED or KILLED by a closing gate.
• Too much force on gate will interfere with proper operation of safety
reversal system.
• NEVER increase force beyond minimum amount required to close gate.
• NEVER use force adjustments to compensate for a binding or sticking gate.
• If one control (force or travel limits) is adjusted, the other control may also need
adjustment.
• After ANY adjustments are made, the safety reversal system MUST be tested. Gate MUST
reverse on contact with a rigid object.
• READ AND FOLLOW ALL INSTRUCTIONS.
• ANY maintenance to the operator or in the area near the operator MUST NOT be
performed until disconnecting the electrical power and locking-out the power via the
operator power switch. Upon completion of maintenance the area MUST be cleared and
secured, at that time the unit may be returned to service.
• Disconnect power at the fuse box BEFORE proceeding. Operator MUST be properly
grounded and connected in accordance with local electrical codes.
NOTE: The operator should be on a separate fused line of adequate capacity.
• NEVER let children operate or play with gate controls. Keep the remote control away
from children.
• ALWAYS keep people and objects away from the gate. NO ONE SHOULD CROSS THE
PATH OF THE MOVING GATE.
• Test the gate operator monthly. The gate MUST reverse on contact with a rigid object or
stop when an object activates the non-contact sensors. After adjusting the force or the
limit of travel, retest the gate operator. Failure to adjust and retest the gate operator
properly can increase the risk of INJURY or DEATH.
• Activate gate ONLY when it can be seen clearly, is properly adjusted and there
are no obstructions to gate travel.
INSTALLATION
1 Disconnect all electric power to the operator.
2 Remove the cover and dust guard from the operator.
Cover
3 Disconnect the battery.
the green and brown wires from the Gate 1 terminal block
4 Remove
on the control board.
Learn Limit Assembly Cover
5 Remove the cover for the learn limit assembly.
GATE 1
BR
Gate 1
Terminal
Block
GR
WH
YL
BL
RD
CHGR
OVLD
CTRL
AC PWR
/SOLAR
Connector
Battery
Plug
1
Transformer or Solar Panel
Dust Guard
5 Remove the gearbox bolts (4).
6 On the limit switch, remove the white wire coming from the rpm sensor assembly.
7 Remove the chain from the sprocket.
8
9 Turn the gearbox to access the rpm sensor assembly.
10 Remove the rpm sensor cover by removing the screws (4).
11 Remove the rpm sensor cup from the gearbox shaft.
Remove the belt from the motor.
15
Reinstall the chain and belt.
16
Insert the white wire from the rpm sensor through the hole in the learn limit box and
connect to the limit switch.
17
Insert the green and brown wires from the rpm sensor through the holes in the learn
limit box and connect to the gate 1 terminal block on the control board.
18
Replace the cover of the learn limit assembly.
19
Reconnect all power to the operator.
20
Replace the dust guard and cover.
12 Remove the rpm sensor box by removing the screws (4) from the gearbox.
13 Fasten the new rpm sensor assembly to the gearbox.
14 Turn the gearbox and fasten it to the operator with the gearbox bolts.
White Wire From the RPM Sensor
Limit Switch
White Wire From
the RPM Sensor
Screws
Gearbox
Limit Switch
Gearbox Bolts
RPM Sensor Cup
RPM Sensor Assembly
Gearbox Shaft
Screws
Control Board
ALARM
RPM Sensor
Limit Switch
SOL
GND
MAGR
PWR
GND
GND
RPM
NC
NO
COM
LOCK
Brown
Green
White
Yellow
GATE 1
BR
GR
WH
YL
BL
RD
2
ADJUSTMENT
LEARN LIMIT ASSEMBLY
The limits are internal settings that indicate when the gate is in the fully open position and the fully closed position. For proper functionality, the limits must be programmed during the
installation process. The gate has to travel a minimum of 6 feet in order to program the limits.
The programming uses a combination of buttons on the control board. The specific buttons used for programming depends on which side of the gate the primary operator is installed and how
many operators the installation includes.
BEFORE programming the limits ensure that the gate is closed and the chain is connected to the operator. To close the gate press the reset switch to RESET/DISCONNECT, then manually close the
gate. To resume normal operation press the reset switch back to NORMAL OPERATION.
SINGLE GATE LEFT-HAND SIDE
1
1 Close the gate.
2 Press and release the LEARN LIMITS button. The SET OPEN LIMIT LED will blink.
GATE
A 1
PrOut
op sid
er e
ty
SET
N
OPEN
LIMIT
SET
CLOSE
LIMIT
PROGRAM OPEN
GATE 2
G
ey
t
id r
s e
In op
r
P
and hold the GATE 1 right button to move the gate to the desired OPEN position.
3 Press
When the gate is in the desired position, release the button.
4
NOTE: The Gate 1 right and left buttons can be used to jog the gate back and forth
as needed.
When the gate is in the desired OPEN position, press and release the LEARN LIMITS button.
The control board will beep and the SET CLOSE LIMITS LED will blink.
3
2
6
4
GATE 1 Right Button
DIAGNOSTIC
5
LEARN LIMITS Button
GATE
A 1
SET
CLOSE
Press and hold the GATE 1 left button to move the gate to the desired CLOSED position.
When the gate is in the desired position, release the button.
NOTE: The Gate 1 right and left buttons can be used to jog the gate back and forth
as needed.
When gate is in the desired CLOSED position, press the LEARN LIMITS button. The
control board will beep and the SET CLOSE LIMITS LED will stop blinking.
LEARN LIMITS Button
SET
OPEN
LIMIT
GATE 1
PROGRAM CLOSE
5
LEARN
LIMITS
SET
CLOSE
LIMIT
EP"
E
"B
6
GATE 1 Left Button
LEARN
LIMITS
GATE 2
G
LEARN LIMITS Button
DIAGNOSTIC
GATE
A 1
SET
OPEN
LIMIT
GATE 1
Programming is now complete. (If the SET OPEN LIMIT LED continues to blink, repeat
programming or refer to the following page.)
Test the limits by pressing the SINGLE BUTTON to open and close the gate.
SET
CLOSE
SET
CLOSE
LIMIT
"
EEP
"B
LEARN
LIMITS
GATE 2
G
SINGLE GATE RIGHT-HAND SIDE
1 Close the gate.
2 Press and release the LEARN LIMITS button. The SET OPEN LIMIT LED will blink.
1
PROGRAM OPEN
and hold the GATE 1 left button to move the gate to the desired OPEN position.
3 Press
When the gate is in the desired position, release the button.
ey
t
id r
s e
In op
r
P
When the gate is in the desired OPEN position, press and release and release the
LEARN LIMITS button. The control board will beep and the SET CLOSE LIMITS LED will blink.
3
PROGRAM CLOSE
5
6
SET
N
OPEN
LIMIT
SET
CLOSE
LIMIT
LEARN
LIMITS
GATE 2
G
NOTE: The Gate 1 right and left buttons can be used to jog the gate back and forth
as needed.
4
GATE
A 1
PrOut
op sid
er e
ty
2
4
GATE 1 Left Button
DIAGNOSTIC
Press and hold the GATE 1 right button to move the gate to the desired CLOSED
position. When the gate is in the desired position, release the button.
NOTE: The Gate 1 right and left buttons can be used to jog the gate back and forth
as needed.
When the gate is in the desired CLOSED position, press and release the
LEARN LIMITS button. The control board will beep and the SET CLOSE LIMITS LED will
stop blinking.
LEARN LIMITS Button
GATE
A 1
SET
OPEN
LIMIT
GATE 1
SET
CLOSE
LIMIT
"
EEP
SET
CLOSE
5
LEARN LIMITS Button
"B
6
GATE 1 Right Button
LEARN
LIMITS
GATE 2
G
LEARN LIMITS Button
DIAGNOSTIC
GATE
A 1
GATE 1
Programming is now complete. (If the SET OPEN LIMIT LED continues to blink, repeat
programming or refer to the following page.)
Test the limits by pressing the SINGLE BUTTON to open and close the gate.
SET
OPEN
LIMIT
SET
CLOSE
SET
CLOSE
LIMIT
DUAL GATES
Refer to the installation manual for dual gate programming.
3
"
EEP
"B
LEARN
LIMITS
GATE 2
G
IF THE LIMITS WILL NOT PROGRAM
1
2
3
4
Learn Limit Nut
3
Disconnect the operator by pressing the reset switch to RESET/DISCONNECT.
Manually close the gate.
Remove the learn limit cover and move the learn limit nut to the center position.
Press the reset switch to NORMAL OPERATION.
1
Learn Limit Switch
RESET/
DISCONNECT
Program the limits again.
NORMAL
OPERATION
4
FORCE ADJUSTMENT
The operator is equipped with an obstruction sensing feature. If the gate encounters an
obstruction the operator will automatically reverse direction for a short time and stop. Based
on the length and weight of the gate it may be necessary to make force adjustments. The
force adjustment should be high enough that small objects such as branches or wind will not
cause nuisance interruptions but low enough to prevent serious injury to a person or a vehicle.
1
2
SINGLE BUTTON
1
FORCE
2
Use the SINGLE BUTTON to open and close the gate.
If the gate stops or reverses before reaching the fully open or closed position increase the
force by turning the force control clockwise.
3
If the gate hits a rigid object and does not stop or reverse, decrease the force by turning
the force control counterclockwise.
4
Run operator through a complete cycle and verify proper operation.
OFF
MAX
NOTE: Weather conditions can affect the gate movement, so seasonal adjustment may be
required. The force control is factory set to the mid-position.
TEST
After any adjustments are made, test the operator:
Use the SINGLE BUTTON to open and close the gate.
1
2
3
SINGLE BUTTON
1
Test the limits by making sure the gate is stopping at the OPEN and CLOSE limits.
Test the force by making sure the gate will stop and reverse direction for a short time on
contact with an obstruction.
PrOut
op sid
er e
ty
2
ey
t
id r
s e
In op
r
P
3
PrOut
op sid
er e
ty
ey
t
id r
s e
In op
r
P
01-35681
© 2009, The Chamberlain Group, Inc.
All Rights Reserved