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ATD 50 Actuator
®
Operating Instructions
Page 16
3811 N. Holton Street • Milwaukee, WI • 53212 •USA • Phone • 414-906-4000 • Fax 414-906-4100 • www.MPCovers.com
REDUCED OPEN
This command causes the door to open to a preset position from the closed position only.
Reason for use: This command is used when a completely opened door is not
required. (Operator may wish to access inside of machine briefly).
Input terminal: C4
Type of signal: Momentary or maintained contact C4 to Ground A1.
Active level Connection is normally open.
Close connection to activate.
FREE WHEEL
This command releases the internal brake allowing manual door movement.
Reason for use: This command will release the brake and allow the operator to
manually move the door. While this signal is present, no other
command will be carried out.
Input terminal: C7
Type of signal: Momentary or maintained contact C7 to Ground A1.
Active level Connection is normally open.
Close connection to activate.
REVERSE CLOSING
This command reverses the door movement when closing. The door will reverse direction
and move to the full open position.
Reason for use A secondary safety device such as a ribbon switch or light curtain can
be installed into the system. The secondary device would be wired
into this command to give a faster REVERSE signal. This is
independent from the automatic sensing feature.
Input terminal: C9
Type of signal: Momentary or maintained open contact C9-to-Ground A1.
Active level Connection is normally closed.
Open connection to activate.