AT
Systems Offer Advanced Technology
and High Performance
At A Low Cost!
The Cattron-Theimeg AT Series offer the safety
and dependability required for operating machinery in harsh,
industrial environments. AT Series Systems can be installed on
overhead cranes; furnace doors; conveyors, shiploading equipment,
mining machinery, agricultural equipment; and much more.
All Cattron-Theimeg AT Series Systems are custom
engineered to meet individual application needs, and can be engineered
for up to 32 outputs and/or stepless. The AT-S is a pre-engineered
version offering faster delivery and all the advantages of the
standard AT without the need for an FCC or DOC license. Check
with your Cattron-Theimeg representative for complete details.
Receiver/Decoder
All receiver/decoder units (shown above) used
with the AT are high quality, industrial units which are housed
in compact NEMA 12 (IP 65) enclosures. The AT utilizes high-performance
microprocessors with a minimum number of components. A single
board receiver/decoder responds to the direct control of a rugged,
hand-held controller/transmitter. The entire electronics portion
of the receiver/decoder is protected with an EMI/RFI shielded
sub-chassis (gold box). This compartmentalized chassis contains
the power supply, the RF receiver, and the microprocessor-based
decoder.
AT Series systems are available with options
such as Close Start™, Range Limiting™, and Multi-Frequency
Using Synthesis. Multiple microprocessors prevent undesired signals
from entering the decoder, thereby improving operation and reliability.
AT decoders incorporate extensive self-diagnostics
which perform on a continuous basis to insure reliable and safe
operation. A two character status display shows both normal running
status and any fault conditions. Outputs are connected to the
relay interface via a single ribbon cable. Long-life electromechanical
relays are organized for easy function recognition. All relays
plug into sockets with mechanical hold-down screws and snubber
circuits are provided for inductive loads. LED’s located beside
each relay show, at a glance, when it is energized.
Cattron-Theimeg application engineers ensure
that all AT receiver/decoders are programmable. This allows for
complex sequential logic, function timing, interlock, etc., to
be built-in, often eliminating the need for a second interface,
such as a PLC with timers and latching relays. Because the AT
is programmable, they can be adapted to a wide variety of equipment.
AT systems will also work with several different Cattron-Theimeg
controller/transmitter styles.
Key Features
- Low cost per output
- 1-32 relay outputs + ON/OFF (mainline)
- Extensive self-diagnostics
- Single point status display shows normal
and fault condition
- "Dry" relay contact
outputs which allow mixed control voltages
- Automatic safety override (ASO) output verification
- Custom factory engineering for each application
(AT only)
- Simplified installation with complete custom
wiring diagrams
- Multiple "watch dog" timers provide redundancy
to insure that no motion is carried out without Command (total
of five – two hardware, three software for CPU, Mainline, & Motor
Functions)
- Compact enclosure
- EMI/RFI shielded/compartmentalized sub-chassis
- No motherboard or card cage
- Plug-in micro-controller with
e-prom allows quick "personality" changes (reduces
need for spare controllers)
- Multiple power supply options
- FCC/DOC/EC non-licensed and licensed systems
available
- Long "ride thru" time
during power interruptions to the receiver/decoder
- Diagnostic software for PC available
- Stepless output available for smoother operation
and control
- Can be configured with several different
controller/transmitter styles

Check Controller page for available
styles
Technical Specifications:
Interface Type: Mechanical relays normally
open contacts of 8 A @ 250 VAC or 5 A @ 30 VDC. (Outputs fused
at 5 Amps; normally closed contacts optional)
Output Termination: Two screw terminals
per relay contact allowing for mixed control voltages and transformer
(two 14 AWG per terminal)
Number of outputs: 1-32 independent
and /or simultaneous, plus mainline on/off (operate)
Enclosure: NEMA 12 (IP65) standard – dust,
water and oil tight; NEMA 4 and 4X (IP66) optional
Dimensions: AT-16: 12"H x 10"W
x 4.5"D (305mm x 254mm x 115mm);
AT-32: 14"H x 12"W x 6"D (375mm
x 330mm x 165mm)
Control Voltage Range: 30 VDC or 12-250
VAC fused @ 5Amps (higher voltages with derated current); Stepless:
0-80V Bipolar maximum
Power Requirements: 32/48/110/220VAC
50-60Hz or 12 VDC +/- 20% @ less than 1 Amp; optional 12 to 48
VDC power regulators available
Receiver Frequency (Crystal & Synthesized): 72 – 76
MHz, 403 – 424 MHz or 447 – 471 MHz (Radio); 880 nanometers (Infrared)
Sensitivity: 0.5 uV (20 dB quieting)
typical
Frequency Stability: +/- 0.0005% of
reference frequency
Environmental: approx. -4ºF to +140ºF
(-20ºC to +60ºC), RH 0 to 95%, non-condensing (special units
available)
Microcomputer Speed: 12MHz
Memory Size: E-Prom 32K bytes (programmed
by Cattron-Theimeg™) EE-Prom 512 bytes (field programmable)
Optional diagnostic Port: RS232C (DB25
Connector) or RS422 (MTA Connector)
RF Range: 300 ft. nominal (92m) (no
license required); 800+ ft. (246+m) dependant on local conditions
*Specifications subject to change without
notice
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