Model 95 Highway Crossing Gate Mechanism

Highway Crossing
Equipment
Ansaldo STS USA
(Formerly known as Union Switch & Signal)
RSE-5A1
Rev. 3-09
Model 95 Highway Crossing Gate Mechanism
ASTS USA’s Model 95 Highway Gate Crossing
Mechanism is the industry standard for simplicity,
reliability, durability, ease of maintenance and
value. It is completely reengineered from earlier
models, meets or exceeds AREMA and other
industry standards, and responds to customer
requests for a state-of-the-art mechanism built
with both safety and value in mind. The
mechanism represents a leap into the use of
modern techniques and materials. Its modular
design features an uncluttered mechanism with
fewer moveable parts. Each unit part can be
easily accessed and replaced in the field if
necessary, making the Model 95 simpler to
service. Models are available for standard
highway vehicle crossing locations, sites with
pedestrian sidewalks, and ASTS USA’s FourQuadrant Gate System (see RSE-5A3).
General Description
Completely redesigned to meet or exceed AREMA
and American Association of Highway Officials’
specifications, the Model 95 Gate Mechanism is a
compact, easily maintained device. It features a cast
aluminum housing and cover and is driven by a highly
efficient and durable gear motor. The result is a
smaller, lighter unit that is extremely serviceable and
stronger than other models. In fact, the Model 95 is
100 pounds (43 kg) lighter than previous
mechanisms, yet has a stall torque of 2,000 footpounds (8896 Newtons). Other features of the Model
95 include heavy duty coil springs for vertical and
horizontal dampeners; availability with vital or nonvital relay; capability of indefinite motor stall; and
higher-strength gears. The Model 95 is designed for
ease of installation and ease of maintenance, with
convenient access to the gear train.
During development testing of the Model 95, the gear
motor prototypes performed to expectations through
more than 200,000 operations. At an average of 10
trains a day, that translates to more than 55 years of
operation.
To order, call 1-800-652-7276
e-mail: orders@ansaldo-sts.us
The Model 95 Gate mechanism has been adapted for
a variety of applications including:
•
•
•
•
Standard highway crossing entrance gate
Highway crossing entrance combined with
pedestrian (sidewalk) gate
Pedestrian sidewalk-only
Highway crossing “Four-Quadrant Gate” system
with entrance and “Exit” gate mechanisms (see
RSE-5A3)
Advantages
•
•
•
•
•
•
•
Lightweight, compact design
Completely re-engineered for increased durability
and serviceability
Easily removed and installed
Fits 4-inch or 5-inch (10.2 cm or 12.7 cm) masts
Capable of indefinite motor stall
Self-restoring internal circuit breakers
Cast aluminum housing Cast aluminum housing
www.ansaldo-sts.com
RSE-5A1, p. 1
Ansaldo STS USA
Model 95 Highway Crossing
Gate Mechanism
(Formerly known as Union Switch & Signal)
RSE-5A1
Rev. 3-09
Typical
Highway Crossing
Application
with Pedestrian
Gate Arm
Typical
Highway
Crossing
Application
RR
CROSSING
GATE ARM
GATE ARM
ADAPTER
GATE ARM
SUPPORT
RR
CROSSING
GATE ARM
COUNTERWEIGHTS/
STUD PLATE
GATE ARM
ADAPTER
RR GATE ARM
SUPPORT
MODEL 95
GATE MECH.
UNIT
Typical
Sidewalk
(Pedestrian)
Gate Arm
Application
MODEL 95
GATE MECH.
UNIT
COUNTERWEIGHTS/
STUD
PLATE
PEDESTRIAN
GATE ARM
SUPPORT
SIDEWALK
GATE ARM
SUPPORT
MODEL 95
GATE MECH.
UNIT
SIDEWALK
(PEDESTRIAN)
GATE ARM
Advantages (cont’d)
Design Features
•
•
•
•
•
•
Housing and Gate Arm
•
PEDESTRIAN
GATE ARM
Available with vital or non-vital relays
Highly efficient drive motor and gears
Heavy duty horizontal and vertical buffers
Built-in thermal and surge protection
“Break-away” gate arm adapter
Mechanisms with pedestrian and sidewalk crossing
arms available
Entrance and exit versions for ASTS USA Quad
Gate System
The Model 95 features a 1-piece cast aluminum
housing and light weight removable cover (vertically
hinged). A heavy-duty spring steel hasp on the
housing latches the cover to the housing and accepts
any standard padlock. Mounting may be done on 4”,
5” and 10” (10.2 cm, 12.7 cm and 25.4 cm) masts.
Overall, the Model 95 is smaller and about one-third
lighter than similar mechanisms. Standard gate arm
assemblies are easily fastened and wired to the Model
95 drive shaft. A universal breakaway adapter on the
arm joint includes shear pins and a right angle, fallaway hinge to control separation of the arm if it is hit
by a motor vehicle.
Within the housing, the electrical assembly is platemounted so that all of the electrical components can
be easily removed and replaced.
RSE-5A1, p. 2
Model 95 Highway Crossing
Gate Mechanism
Ansaldo STS USA
(Formerly known as Union Switch & Signal)
RSE-5A1
Rev. 3-09
Design Features (cont’d)
Additional Model 95 Applications
Gearing and Drive Motor
The Model 95 Pedestrian Gate Mechanism utilizes the
same basic design as the standard highway crossing
version, but is equipped with an additional 8 foot (2.4 m)
arm for deployment over a pedestrian sidewalk adjacent
to the highway. Both the main highway arm and the
pedestrian arm deploy at the same time and same speed
from the internal mechanism. Versions of this
mechanism are available with vital or non-vital relay.
Gate arm support hubs permit right-hand or left-hand
placement of the pedestrian arm.
The Model 95 includes a 2-stage, high-strength
gear reduction mechanism. Heavy duty damper
springs on the main drive shaft prevent any gate
arm backlash into the gear train. The Model 95 is
driven by a compact but powerful permanent
magnet gear motor that generates more torque
than larger and heavier motors in use. Stall torque
is 2000 ft./lbs. (8896 Newtons), a major
improvement over the typical 1300 ft./lbs. (5783
Newton) rating of other gate mechanisms. Also,
this motor is capable of moving the gate
mechanism off balance with the gate arm missing.
If needed, the motor shaft can also be hand
cranked via a square shaft extension.
Motor Control Relay (MCR) contacts are used to
control the drive motor. The unique snap-action
contact design extends contact life, while helping
to operate the mechanism more smoothly. The
MCR is de-energized when the gate is clear;
therefore none of the circuit controller contacts
carry motor current.
The Model 95 incorporates a simplified hold-clear
circuit using an electric brake. This device permits
the gate to be locked in the upright position. The
brake disengages and allows the arm to lower
when a train approaches the gate mechanism.
In addition to the complete Highway/Pedestrian
assembly, ASTS USA provides several retrofit kits for
converting an existing Model 95 crossing mechanism to
include the pedestrian arm feature.
The Model 95 Sidewalk Gate mechanism is also based
on the standard gate mechanism, but is only equipped
with the 8 foot (2.4 m) pedestrian arm for locations where
only a pedestrian sidewalk crosses the tracks. Left and
right-hand arm versions are available with this assembly.
The Model 95 Exit Gate Mechanism is an integral part of
ASTS USA’s “Four-Quadrant Gate” system. This gate
mechanism is mounted on the signals installed on the
exit-side of the crossing (the side through which a motor
vehicle must pass when leaving the crossing).
The Model 95 also has built-in self-restoring
internal circuit breakers for thermal and voltage
protection, which guard the device from damage
due to harsh weather conditions, electrical storms
and surges. It is also resistant to overload damage
from gate arm obstructions.
Electrical Controls
The Model 95 uses a dependable circuit controller
that is easily accessed and designed to minimize
contact burning. This allows for on-site operation
with the gate arm missing. One adjustable resistor
allows convenient setting of the arm descent
speed.
Foundation Mounting
Standard pre-cast or poured concrete may be
used as a foundation for the Model 95 Gate
Mechanism (per AREMA guidelines). Bolt spacing
is a standard 4-bolt pattern spaced 11-11/16” on
centers for 5” junction box.
RSE-5A1, p. 3
Ansaldo STS USA
Model 95 Highway Crossing
Gate Mechanism
(Formerly known as Union Switch & Signal)
RSE-5A1
Rev. 3-09
Additional Model 95 Applications (cont’d)
Specifications (cont’d)
It is designed to raise should power to the highwaycrossing warning system fail, thus preventing a motor
vehicle being trapped on the crossing by a down gate
blocking the crossing location’s exit-side lane. Refer
to RSE-5A3 for additional details.
Ckt. Breaker Reset:
Within 1 minute to several
minutes
Heater:
25W resistive element
Voltages: 24V, 120V, 240V
Motor Relay:
Specifications
Dimensions:
23” H x 21”W x 13-3/4”D
(58.4 cm H x 53.3 cm W x
34.9 cm D)
Weight:
185 lbs (83.9 kg). with cover,
160 lbs. (72.6 kg) without
cover
Mounting:
Ordering Information
•
4”, 5” and 10” ” (10.2 cm, 12.7
cm and 25.4 cm) pipe masts
Handling:
Eyebolt for lifting
Motor Voltage:
12 Vdc or 24 Vdc
Motor Current:
15.0 A
Motor Stall Torque:
2000 ft./lbs. (8896 Newtons)
Hold Clear:
12 Vdc unit: 150 to 160 mA
•
•
24 Vdc unit: 185 mA
Ckt. Breaker:
12 Vdc unit: 20A
24 Vdc unit: 10A
Ckt. Brkr. Open Time:
200% of load rating within 1
minute
Order No.
N46780101
N46780102
N46780105
N46780106
N46780108
N46780201
N46780202
N46780204
N46780206
RSE-5A1, p. 4
•
100% of load rating for 1 hour
125% of load rating for up to
1 hour
Model 95 Crossing Gate Mechanisms
Relay
Type
Motor
Non-Vital
12 Vdc
Non-Vital
24 Vdc
Non-Vital
12 Vdc
Non-Vital
12 Vdc
Non-Vital
12 Vdc
Vital
12 Vdc
Vital
24 Vdc
Vital
12 Vdc
Vital
12 Vdc
Note (1): See RSE-5A2 for description.
PN-150HD vital plug-in (see
RSE-4E2) or non-vital
•
Refer to ordering tabulation below and on page 5
to order the following Model 95 items:
‐
Standard highway crossing entrance
mechanism
‐
Highway crossing mechanism with pedestrian
(sidewalk) gate arm
‐
Pedestrian (sidewalk) gate mechanism only
If replacing a non-ASTS USA gate mechanism with
the Model 95, gate arm supports must be ordered.
Model 95 Exit Gate Mechanism only available as
part of “Quad Gate” system; contact your ASTS
USA Account Executive for details and any other
special equipment configurations required.
Request Service Manual SM-6495 for highway,
pedestrian and sidewalk gate mechanism
replacement parts.
Refer to RSE-5A2 for various Model 95 Gate
Mechanism installation, upgrade and retrofit
assemblies:
3-Wire
Control
-------X
--
120 Vac
Heater
--X
X
------
Maint.
Switch (1)
---X
X
---X
Model 95 Highway Crossing
Gate Mechanism
Ansaldo STS USA
(Formerly known as Union Switch & Signal)
RSE-5A1
Rev. 3-09
Ordering Information (cont’d)
Order No.
N46780103
N46780104
N46780109
N46780110
N46780111
N46780112
N46780107
N46780205
N46780207
N46780208
N46780209
N46780210
Order No.
N46780301
N46780302
N46780304
N46780305
N46780401
N46780402
N46780403
N46780405
Order No.
N46710401
N46710402
N46710406
Model 95 Sidewalk Gate Mechanisms
Relay
Left or
Type
Right Hand
Non-Vital
R.H.
Non-Vital
L.H.
Non-Vital
R.H.
Non-Vital
L.H.
Non-Vital
R.H.
Non-Vital
L.H.
Vital
-Vital
R.H.
Vital
R.H.
Vital
L.H.
Vital
R.H.
Vital
L.H.
Note (1): See RSE-5A2 for description.
3-Wire
Control
------X
X
-----
Model 95 Pedestrian Gate Mechanisms
(Highway and Sidewalk Crossings in same unit)
Relay
120 Vac
Maint.
Type
Heater
Switch (1)
Non-Vital
--Non-Vital
X
-Non-Vital
--Non-Vital
X
X
Vital
--Vital
X
-Vital
--Vital
X
X
Note (1): See RSE-5A2 for description.
Note (2): With upgrade option (see description).
Model 95 Exit Gate Mechanisms
Relay
Type
Mode
Non-Vital
Fail Up
Vital
Fail Up
Non-Vital
Fail Up
120 Vac
Heater
--X
120 Vac
Heater
--X
X
X
X
----X
X
Maint.
Switch (1)
----X
X
----X
X
Notes
--(2)
---(2)
--
Timer
--X
RSE-5A1, p. 5
RSE-5A1, p. 6