Mighty Mule FM502 Green Board - Manual (Page 35)

31
Connecting Accessories
The Mighty Mule® 502 can accept NORMALLY OPEN CONTACT accessories, such as; Push Button Entry Devices
and Key Pads.
Refer to the sensor manufacturer’s instructions for information about installing these devices on a vehicular gate.
Make sure the power to the opener is turned
off before connecting safety device wiring to the
terminal blocks. Unplugging the transformer
does not turn power to the opener OFF.
Accessory Input Connection:
Connect one of the accessory wires to the COMMON (COM)
terminal and the other to the CYCLE CLOSE terminal on the
Mighty Mule® 502 control board.
Each activation of the accessory will cause the
gate to cycle as follows:
OPEN STOP CLOSE STOP
If not connecting accessories skip to next section.
Wire from Accessory
(push button, key pad, etc.)
RECEIVER
COM COM
CY
CLE
CL
OSE
SAFETY EXIT/ OPEN SHADOW LOOP CL
OSE
EDGE OPEN EDGE
BLK GRN RED
STALL FORCE
MI
N
MA
X