FAULT DISPLAY
Encoder failure, the
encoder cannot write and
read data
1. Replace the encoder
2. Replace the encoder
cable
No motor motion signal is
detected,
1. Check whether the
wiring between the limiter
and the control board is
loose.
The positive and negative
poles of the motor wire are
reversed
1. Exchange the positive and
negative poles of the motor
Motor current is too high
1. Choose matching
control system and motor
2. Check the door
body
3. Replace the
high-power door drive
Door drive overload alarm,
current overrun
1. The door is stuck or
the door is too heavy
2. The door size is too
large
3. Check the door
body
4. Replace the
high-power door drive
Optical safety edge sensor
kit fault
1. 8.2K resistor is open circuit,
missing installation
2. The conductive tape edge is
aging or broken
Infrared/infrared light
curtain function port is
triggered
1. Check whether the
infrared function is turned on
2. Turn on the infrared
function to detect whether the
infrared device is blocked
3. Check whether the
NO/NC wiring of the infrared
device output port is wrong.
The NO port is connected by
default, and the port is closed
after the shot
SD (Pass door/wicket
door) switch is triggered
1. Check whether the SD
function port of the secure
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