6
The 820/860 Slide Gate Operator
General Characteristics
The 820 and 860 Slide Gate Operators are compact
operators with
Gentle
Slide
tm
Motion Management for
high-traffic applications. The 820 is designed for
medium-weight gates, and the 860 is designed for
heavier gates. Either operator is available with a chain
drive or a rack and pinion drive.
Both operators feature internal limit switches for gate
leaves up to 59 ft (18 m) in length. (The 860 can also
accept external limit switches for gates as long as 66 ft
[20 m].) The operators also feature internal cooling
systems, interchangeable gears for various sized gates
and gate speeds, and a partial opening function.
The new partial opening function allows you to open
the gate just enough for motorcycle traffic, for example,
without compromising your security.
Each operator has a die-cast anodized aluminum
housing and a die-cast aluminum cover protected by
polyester paint. Those mechanical components
requiring extra strength are made of steel or cast iron.
The motor for the 820 or 860 Operator serves as a gate
lock. For further reliability, the motor's armature shaft is
mounted on double bearings. The worm drive
mechanism and single-plate clutch are encased in oil to
lubricate their moving parts and dissipate the heat they
generate during operation.
Inside the operator's housing you will find that the
transformer, capacitor, and analog-digital limit switch
module are separate from the main control panel board
for easy maintenance (see Figure 2). In addition, the
control panel provides quick-connector ports.
The 826 MPS control panel inside the 820 or 860
Operator offers you choices in gate leaf functions. For
example, you can choose among eight different logical
modes of operation. You can also select the pause time
you want (from 5 to 180 sec, depending on logic mode),
the direction in which the gate slides, and the operation
Operator
ground
1 Transformer
2 826 MPS control panel
3 Capacitor
4 Clutch adjustment screw
5 Electric motor
6 ADL electronic card
7 Limit switch unit
8 Worm screw
9 Crown wheel
10 Manual
Release
11 Pinion
12 Casing
Figure 2. The 820 or 860 Operator with the cover removed