DKS Enterprises 9210 ユーザーズマニュアル

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4.2.3 Hard 
Shutdown 
A hard shutdown condition occurs when the inherent entrapment protection system has sensed two 
consecutive obstructions before the gate reaches the full open or full closed position.  It can also be 
an indication that the gate is too heavy or that the gate hardware (wheels, rollers) is in poor 
condition and needs to be corrected
.  Do not reduce the operator reversing sensitivity in an 
attempt to correct for a poorly designed gate or for hardware that is in need of repair. 
  
Example:  The gate is closing and the inherent entrapment protection system senses an obstruction 
and causes the gate to reverse direction.  As the gate begins to run in the open direction, a second 
obstruction is sensed prior to the gate reaching the full open position.  Once the second obstruction 
has been sensed, the operator will stop, the audio alarm will be activated and all standard inputs are 
shut down (including open commands, safety commands, loop inputs, etc.).   
 
NOTE:  The audio alarm will remain activated for a maximum of five minutes, or until the operator 
receives a reset input.  The hard shutdown condition will remain in affect even if the audio alarm 
shuts off after five minutes. 
 
After 5 minutes, the audio alarm will “chirp” every 5 seconds.  This indicates that the operator is in a 
hard shutdown condition and the reset switch must be activated to reset the operator and silence the 
alarm. 
 
 
4.2.4  Resetting a Hard Shutdown 
When the operator is in a hard shutdown condition (audio alarm activated or audio alarm “chirps” 
every 5 seconds), the only way to reset the gate operator and return it to normal operation is to 
activate the alarm reset input.  An alarm-reset switch can be mounted external of the gate operator 
provided that it is installed in the line of sight of the gate and gate operator (see 2.6.1). 
 
Before resetting a hard shutdown, determine why the shutdown occurred.  Inspect the gate for any 
obstructions along its path that could have activated the inherent entrapment sensing system.  
Inspect the gate and gate hardware. 
NOTE:  DoorKing operators have a built-in alarm reset push button mounted on the operator above 
the power ON-OFF toggle switch.  Activating this button will return the gate operator to normal 
operation, but will not activate the gate operator. 
 
Once the gate has been reset, an open or close command is needed to start the gate operator.  Most 
activating commands will cause the gate operator to cycle to the open position.  This includes 
activation of a key switch or open command and activation of an open loop.  Activation of a close 
command will run the gate to the closed position.   
 
NOTE:  The gate operator will not lose its limit settings when a hard shutdown occurs. 
 
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