Reverse Sensor (Erd) - Maximum Controls MAX MEGATRON 2500 Installation And Owner's Manual

reverse sensor (erd)

The Megatron 2500 is equipped with an ERD Sensor - Electronic Reversing Device (Type A) that functions as the primary
entrapment protection according to UL 325 standards. The gate will reverse direction after encountering an obstruction in
either the OPEN or CLOSE gate cycle.
When the gate encounters an obstruction during the CLOSE cycle, it will reverse to the open position and PAUSE the gate. An
input command (press remote button or exit loop) is needed BEFORE the gate will reset and close again.
When the gate encounters an obstruction during the OPEN cycle, it will reverse approximately 6 inches and PAUSE the gate. An
input command (press remote button or exit loop) is needed BEFORE the gate will reset and open again.
For the ERD Sensitivity to function correctly:
• THE RELEASE HANDLE CLAMP MUST NOT SLIP when the gate encounters an obstruction.
• Limit switches must be learned BEFORE adjusting the ERD Sensitivity.
1
STOP Gate STOP Gate
Half-way Half-way
Position gate half-way open and STOP gate.
This gate position will put the most amount of
resistance on the ERD sensor when gate cycles.
Test ERD Sensitivity
Allow the gate to strike an immobile object while OPENING and CLOSING. The gate MUST reverse direction
after striking the object. If it does not, increase the ERD Sensitivity. Repeat this process until the correct
sensitivity is set. If alarm sounds while preforming this procedure, press alarm reset button on control box.
NOTE: When solid gates are installed in unusually high wind areas, ERD sensor can be set to Min to keep
the gate cycling normally in such extreme conditions.
CAUTION: Minimum sensitivity setting results in gate exerting MAXIMUM force before reversing direction.
Adjustments
MC-100
Motor Controller
MOTOR OVERLOAD
ERD
Turn knob clockwise until
green LED lights up
(Max sensitivity reached) . . .
ERD
Sensitivity
Min
CLOSE Gate CLOSE Gate
CLOSE gate. If ERD sensor triggers, reduce
sensitivity. If sensor does NOT trigger,
sensitivity is set correctly.
ERD
JOG JOG
Sensitivity
LEFT RIGHT
Max
Min Sensitivity
INPUTS
MC-100 motor controller
Adjust ERD Sensitivity
Turn knob counter-clockwise
to reduce sensitivity as
needed (LED will turn OFF).
ERD
Sensitivity
M Max M M M a a ax x
Min
Sensitivity Sensiti Sensit Sensi Sens Sen S ensitiv sitiv
2
Matrix UL
Edge 1
On Line Entrap
Power
Limit SW Edge 2 Photo
On Line Cell
Max
Sensitivity
alarm
reset
button
on back
of cover.
35