Mighty Mule FM502 Green Board - Manual (Page 14)

10
DRIVE
• Low friction screw drive (linear actuator) rated for -5 ºF to +160 ºF (-28 ºC to +71 ºC).
• Powered by a 12 V motor with integral case hardened steel gear reducer. Motor speed reduced to 260 rpm. Generates
680 ft. lb. of torque at 12 V.
• Maximum opening arc of 110º. Approximate opening time (90º): 20 seconds, depending on weight of gate.
POWER
• The system is powered by a 12 Vdc, 7.0 Ah, sealed, rechargeable acid battery.
• Battery charge is maintained by a 120 Vac, 18 Vac output transformer rectifi ed to 14.5 Vdc (20 VA) through the GTO
control board. One (1) blade-style control board fuse rated for 25 A.
NOTE: The transformer should not be directly connected to any battery. Do not replace fuses
with higher ampere rated fuses; doing so will void your warranty and may damage your control board.
• Battery charge is maintained by GTO Solar Panel Charger: fl oat voltage of 14.5 Vdc output from a 19 3 /
8 " x 8 1 / 11 2 // "
silicon alloy panel. Generates minimum of 5 W at 300 mA. A gated diode on the control board prevents battery dis-
charge.
CONTROL
• GTO microprocessor-based control board is set for single leaf, pull-to-open gate installations. DIP switches can be
adjusted to accommodate an optional kit for push-to-open gates (see Accessory Catalog).
• Control board has temperature compensated circuits.
• A circuit on the control board regulates charging. "Sleep draw" is 40 mA; "active draw" is 2 to 5 A.
• Auto-memorization of digital transmitter code.
• GTO remote-mounted RF receiver tuned to 318 MHz.
• Opener length with push-pull tube fully retracted is 40 1 /
4
// ", mounting point to mounting point.
• Adjustable auto-close timer and obstruction sensitivity.
• Power terminal bock accommodates a transformer or solar panels.
• DIP switches simplify setup of gate opener.
• Accessory terminal block is fully compatible with push button controls, digital keypads, safety loops, etc.
• Control board allows connection of safety edge sensors and photoelectric sensors.
• Audio entrapment alarm sounds if the unit encounters an obstruction twice while opening or closing.
OPERATIONAL CAPACITY
• The Gate Capacity Chart shows approximate cycles, per day, you can expect from the Mighty Mule 502 Automatic
Gate Operator when powered with a transformer. Actual cycles may vary slightly depending upon the type and condi-
tion of gate and installation.
MIGHTY MULE® 502 E-Z GATE® OPENER
Technical Specifi cations
These specifi cations are subject to change without notice. These specifi cations are subject to change without notice.
IMPORTANT: BALL BEAR-
ING HINGES SHOULD
BE USED ON ALL GATES
WEIGHING OVER 250 Lbs.
NOTE: "NR" indicates this
size and weight combination
is not recommended for the
Mighty Mule 502.
To determine the number of cycles the gate opener will perform using solar panels, please see the specifi cations
listed on page 19 or call (800) 543-1236 or (850) 575-4144 for more information.
* An operation cycle is one full opening and closing of the gate.
Gate W
eight
Gate Length
Number of Cycles Per Day
Mighty Mule 502 Gate Capacity /Cycle Chart
Estimated number of daily cycles, based on use with a transformer and one(1) 12 Volt battery.
850 lbs.
750 lbs.
650 lbs.
550 lbs.
450 lbs.
350 lbs.
250 lbs.
150 lbs.
100 lbs.
50 lbs.
68
73
78
83
88
93
98
103
108
113
5’ - 6’
63
68
73
78
83
88
93
98
103
108
8’
63
68
73
78
83
88
93
98
103
10’
63
68
73
78
83
88
93
98
12’
63
68
73
78
83
88
93
14’
63
68
73
78
83
88
16’
NR
NR
NR
NR
NR
63
68
73
78
83
18’
NR
NR
NR
NR NR
NR
NR NR
NR NR
NR = NOT RECOMMENDED