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8.1 Operation:
8.1.1 Sizing
From start-up (Sizing), the door will activate via:
• 1-Way Input (Main Act and Main Act).
• 2-Way Input (3-Way ON, 3-Way HO and 3-Way GND) with key switch in the ON
position, uses either Main Act or Aux Act input
• Key switch in Hold Open position.
The first motion of the door will be towards the Door Open position. The speed during
Sizing is automatic and cannot be set from a potentiometer.
The door drives to full open and the system sets the open counter to full open.
The door closes at Closing Speed. The system sets the closed counter to Full Closed
when the latch goes up at the Closed position.
The system calculates all other parameters required for normal operation based on the
two values of Full Open and Full Closed.
8.1.2 Standard Operation
Upon a legitimate activation signal, the door accelerates to opening speed while
monitoring the current load on the drive output. If the current exceeds the specified
level, the door will stop and close.
The door travels at it’s set speed (based on the potentiometer setting) until it reaches
the Back Check position, where it will decelerate to the Back Check Speed.
The door will stop at the Hold Open position and remain there until an activation or the
Hold Open Timer is cleared.
The door then closes at its Closing Speed (based on the potentiometer setting) up to the
latched position.
If the Closing Speed is decreased by driving the motor in the open direction (a fixed
setting), power is added to allow the spring to continue closing the door to the Full
Closed position.
8. BENCHMARK III SOFTWARE
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