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NOTE: If the safety sensor wires need to be extended, the polarity must
be maintained when connecting the safety sensors to the control board.
The black striped wire connects to the negative (-) terminal and the red
wire connects to the positive (+) terminal.
MODEL GA200D ONLY
• Insert red lead wire into IR+ terminal.
• Insert black striped lead wire into IR- terminal.
MODELS GA400D AND GA420D ONLY
Entrapment Safety Sensors
• Connect ENTRAPMENT safety sensor wires to P8 terminal.
Open Safety Sensors
• Connect OPEN (Photo Input) safety sensor wires to P7 terminal.
Close Safety Sensors
• Connect CLOSE (Photo Input) safety sensor wires to P9 terminal.
ALIGN SAFETY SENSORS
1. Reconnect power and batteries to the operator. The indicator lights in
both the sending and receiving eyes will glow steadily if wiring
connections and alignment are correct.
NOTE: The sending eye indicator light will glow regardless of alignment
or obstruction. If the indicator light in the receiving eye is off, dim, or
flickering (and the invisible light beam path is not obstructed), alignment
is required.
2. Loosen the sending eye wing nut and readjust, aiming directly at
the receiving eye. Lock in place.
3. Loosen the receiving eye wing nut and adjust sensor until it
receives the sender's beam. When the indicator light glows
steadily, tighten the wing nut.
NOTE: When properly aligned, the indicator lights in both the sending
and receiving eyes will glow steadily.
TEST THE SYSTEM
1. Press the remote control button to open the gate.
2. Place an obstruction in the path of the close or entrapment safety
sensor.
3. Press the remote control button to close the gate. The gate
should stop.
4. Remove the obstruction and the operator will resume normal function.
The gate operator will not function from a remote control if the indicator
light in either sensor is off indicating the sensor is misaligned or
obstructed. If the system continues to fail the test, call for a trained gate
systems technician.
Verify all other safety devices operate correctly.
TROUBLESHOOTING
If the sending or receiving LEDs do not light up after installation, please
check the following:
• Power supply to the operator. Operator may be in stand-by mode,
press the reset button to wake up the operator. Verify voltage at
inputs.
• A short in the wires. Check wires.
• Incorrect wire connections between the safety sensors and operator.
Verify wiring.
• A broken wire. Check wires.
If both sensors are flashing:
• Align sensors.
• Remove obstruction.
• GA200D - Disconnect safety sensors then turn power on unit.
• GA400D/GA420D - Erase the programming for the safety
sensors - remove safety sensor. Press learn limits button then
press reset button.
01-33959C
MODEL GA200D
_
+
IR
Red
Black
Lead
Striped
Wire
Lead
Wire
MODEL GA400D AND GA420D
CESSORY
0VLD
L1
ON
OFF
C75
F12
LEARN
LOCK /
XMITTER
BIPART DELAY
C7Ø
C71
C72
C73
DIAGNOSTIC
GATE 1
SET
SET
LEARN
OPEN
CLOSE
LIMITS
LIMIT
LIMIT
TIMER
GATE 2
RUNNING
TIMER TO
FORCE
OFF
MAX
OFF
D44
F7
Z4
D2
R196
R42Ø
R423
F3
K6
JU2
U2
R22
DB1
Indicator Light
© 2008, The Chamberlain Group, Inc.
All Rights Reserved
R6
_
+
IR
_
+
SWITCH
Black
striped
wires
Black
Striped Wire
Close
Safety Sensors
OPEN EDGE/
PHOTO
Z9
CLOSE
Red
CLOSE
C66
C65
EDGE
OPEN EDGE/
DGE/
GE/
U4
OPEN
PHOTO
CLOSE
OPEN
PHOTO
R93
PHOTO
CTRL
PWR
SINGLE BUTTON
OVLD
CONTROL
CLOSE
INPUTS
OPEN
Z8
SINGLE BUTTON
RESET
CLOSE
STOP
MAX
COM
COM
Red
R184
LOOP
INPUTS
C13
SHADOW
D129
INTERRUPT
CHGR
CTRL
PWR
OVLD
AC PWR
/SOLAR
CLOSE
PHOTO
Close Safety Sensors
_
+
SWITCH
Red
wires
Red
Black
Striped Wire
Red
Entrapment/Open
Safety Sensors
Black
Entrapment
striped
Safety
wires
Sensors
Black
Red
Black
Black
striped
Open
wires
Safety
Sensors
Black
Red
Black
Black
striped
wires
Black
Red
Black
Red
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