Apollo 816 LA Linear Actuator
Installation Reference Manual
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1. Remove plastic caps from the Extend and Retract limit screws on the Apollo 816 actuator motor (Fig-11).
2. Ensure primary actuator cable is plugged into MOTOR 1 connector on controller. If a dual gate system,
do NOT plug secondary actuator cable into the MOTOR 2 connector.
3. Press/hold Open/Close button to run gate to mid-position.
4. Press/hold Open/Close button to run gate to one of the desired gate limit positions.
5. If the gate does not stop at desired limit position, adjust per one of the following two scenarios (A or B):
A. If gate moves to preferred gate position without stopping (with NO limit LED indication), use buttons
to move gate to preferred limit position, note if actuator arm is extended or retracted, then adjust limit
screw per Scenario A in Diagram 6-1.
B. If gate stops before preferred gate position (with limit LED indication), note if actuator arm is extended
or retracted, then adjust limit screw per Scenario B in Diagram 6-1.
6. To set the other limit, run gate to mid position, then to the other limit and repeat from Step 5.
7. If a dual gate installation, unplug primary actuator from MOTOR 1 inputs and instead plug in the secondary
actuator cable and repeat Steps 3 to 6 for that actuator.
8. After limits are set, replace black plastic caps over 816 actuator Extend and Retract limit screws. If a dual
gate installation, ensure limits are set for each actuator per the above steps.
HINT
Check limit position is set correctly by using the Open or Close buttons to jog gate to mid-position and
then back to the limit. Adjust as necessary. For Limit LED behavior, see DETAIL A in Diagram 6-1 and
Fig-11A-1 and Fig-11A-2 (and note) below.
11A 816 LIMITS: 936 OR 1050
NOTICE
If gate moves opposite of button activated,
reverse red and black wires in actuator
connector.
If limit LEDs indicate wrong gate limit,
reverse the orange & white wires in actuator
connector. Limit LEDs should behave as
follows:
1050 Controller (Fig-11A-1):
Limit LED = Lights red at Close limit and
green at Open limit.
936 Controller (Fig-11A-2):
• Close Limit LED lights red at Close limit
• Open Limit LED lights red at Open limit
6.1 816 LIMITS: 936 AND 1050
Fig-11A-2: 936 Limit LEDSFig-11A-1:
1050 Limit LEDS
Antenna
Receiver
Close
GRD
OK
Open
Stop
Close
Open
+12V
Reset
BlueBus
GRD
+24V
N/C
COM
N/O
N/C
COM
N/O
GRD
GRD
12V
Alarm
Sol. Lock
Main Fuse
Limit 2
Encoder 2
Encoder 1
Motor 2Motor 1
3A
GRD
Reset
Edge
Safety
Shadow
Exit
UL
Fire
Input
GRD
GRD
GRD
GRD
GRD
GRD
GRD
GRD
GRD
+12V
Open
Input
USB
F/W Jumper
Learn
Input +12V a
Options
AutoClose
SlowDown
Force
Close
Stop
+12V
c
3A
b
c
Bypass 15A Fuse
A
A B
A
BA B
A B
B
Close
Close
Open
OpenOpen
COM
COM
MOTOR 2
Limit LED MOTOR 1
Open Limit LED
MOTOR 2
Open Limit LED
MOTOR 1
Close Limit LED
MOTOR 2
Close Limit
LED
MOTOR 1
Limit LED
IMPORTANT!
These instructions are ONLY for adjusting the location of limit sensors inside the Apollo
816 actuator. After setting these limits, see the “Learn Limits” procedure in the appropriate
controller manual for instructions on how to enable the controller to “learn” these limits.