ATC Counters from Sords Electric

Automatic Timing and Controls 354 Counters from Sords Electric

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354B350Q30PX 120 volt 9999 Count Counter
354B350Q30PX 240 volt 9999 Count Counter

354C Series Shawnee II High Speed Counter

ATC High Speed 354 Counter

Features:

• 4 Digit Display
• Easy to Set
• Noise Immunity
• Plug-In & Dust-Tight
• Control Versatility
• High Repeat Accuracy

The solid-state ATC 354 is manufactured from a series of computer-tested plug-in circuit boards and assembled virtually without hand wiring. Because it has no moving parts in its logic circuits, its life expectancy is practically unlimited. Even the load relay—the 354’s only significant mechanical component—has a life expectancy of 100,000,000 operations (no load), while the optional solid-state switch module has a virtually unlimited life expectancy. As a result, the 354 achieves an overall reliability that surpasses even the high level achieved by previous Shawnee counters.

CYCLE PROGRESS INDICATION: The ATC Shawnee 354 indicating counter provides cycle progress indication on a four-digit display located immediately above the digital setting number wheels. While the non-indicating Model 354C does not provide true cycle progress indication, its pilot light signals when the counter is running.

EASY TO SET AT ALL TIMES: The ATC Shawnee counter is easily and accurately set even with work gloves on. Push any of its four toggle levers in any sequence until the number you want appears above it. You can decrease as well as increase each number by pushing the levers up or down. You can change the setting at any time, even during a cycle.

NOISE IMMUNITY: The 354 does not have to be shielded: its transformer power supply, full-wave bridges, buffered logic and other design characteristics render it immune to the electrical noise that is sometimes encountered in industrial environments thus eliminating false starts and reset due to voltage spikes.

PLUG-IN AND DUST-TIGHT: All ATC 354 counters feature true plug-in design and are dust-tight from the front of panel. 100% ACCURATE AND BOUNCE-PROOF: The repeat accuracy of the ATC Shawnee 354 is 100% at all rated speeds, even in the presence of contact bounce. The ATC 354 has two selectable levels of bounce suppression: a normal level which eliminates false counts at speeds up to 500 per second with reed switch inputs, and 5,000 per second with DC voltage pulses; and a high level, for speeds up to 80 per second with high-bounce contact closures (relays, precision switches, etc.).

HOUSING, IT OCCUPIES 40% LESS: Packaged in a 72mm2 DIN-size housing, the 354 occupies 40% less panel space than previous IC counters. Modern production and assembly techniques have substantially reduced manufacturing costs resulting in a 45% cost saving.

CONTROL VERSATILITY: The ATC 354 operates either as a repeat cycle pulse generator or in single-cycle interval or delayed mode. You choose the kind of control action you want by installing jumpers on the terminal block. It also provides a choice of control output, a standard plug-in SPDT relay or an optional SPST solid-state switch module…plus an independent and separate DC output signal at Terminal 6.

OPERATION

The ATC Shawnee 354 operates on a digital logic circuit with three main elements: input circuits which allow it to count various types of DC pulses; a read-only-memory (ROM) whose output is set by the counter’s digital setting number wheels; and a comparator that continuously examines the outputs of the input circuit and ROM. When the start (ready/reset) signal is on, the input circuit begins to count incoming pulses, feeding the total count continuously to the comparator. When input circuit output exactly equals ROM output, the ATC 354 counts out. At that instant, the input circuit automatically turns itself off even if the start signal remains on; it is therefore not necessary to turn off the pulses externally. At the same instant, the 354 provides one of three load control actions depending on how it is wired (see Typical Applications). When the 354 is wired for interval operation, the counter’s output device (either the standard SPDT relay or the optional SPST switch module) is energized from the start to the end of the count cycle; so is the DC output at terminal 6. 

Specs:

Range is 1-9999 or 10-99,990 (in tens) Counts

Pulse Inputs 
Minimum Open Resistance: 1 megohm
Maximum Closed Resistance: 20K Ohms
Switch Requirements:  10mA, 30v
Max Count Rate:  500/SEC
Min Closed Time:  100 μSE

Min Open Time:  1 mSEC
Max Open Time: .3 mSEC
Voltage Inputs:
Positive Polarity:  On at 4.5V minimum, Off at 1.0V Maximum
Negative Polarity:  On at 3.0V minimum, Off at 1.0V Maximum
Maximum Continuous Input:    40V
Ripple Voltage: Must not go below requirement
Input Impedance:  5K ohms
Minimum ON time:  60 μSEC

Minimum OFF time: 100 μSEC

Count rate: 5K Hz Maximum
Delayed Mode 
Relay Operate Time:  20 mSEC maximum
Relay Release Time:  25 mSEC maximum
Automatic Recycle Mode
Pulse On Time (with Relay) 80 mSEC, + 20 mSEC
Start (Ready/Reset) Signal
Positive Polarity: ready at 4.5V Minimum, Reset at 1.0V Maximum
Maximum Continuous Input: 40V
Ripple Voltage:  must not go below MIN requirement
Input Impedance: 5K ohms
Ready to Count Time: .5 mSEC
Circuit Reset:  1 mSEC maximum
Ready to Drop Out:  20 mSEC maximum
Start Switch Requirements (Isolated contact)
Switch Rating: 10mA, 30v
Minimum Open Resistance:  1 megohm
Maximum Closed Resistance:  20K ohms
Latching Mode Operation (interval only)
Minimum Duration Start Signal:  50 μSEC
Maximum Start Signal:   continuous
Load Relay
LIFE: 100,000,000 operations with no load
Contact Rating: 5A at 120 VAC, 3A at 28vdc 1/20 HP at 120 VAC
Solid-State Switch Module (optional)
Switches external C voltage supply of positive Polarity, 4 to 30V, 50 mA max
DC Output (Terminal 6)
Voltage: ON 24V +/- 10%
Current: 40mA Maximum
Power Requirements
120V: 95 to 132V, 50/60 Hz, inrush .4A, Running-.02A
240V: 190 to 264V, 50/60 Hz, inrush .4A, Running-.02A
Temperature Rating
32º to 140ºF / 0 60º C
Mounting
Standard - Hardware provided to mount counter to be dust tight on front end of panel
Optional - Surface mounting with front facing terminals

Download Catalog Spec Sheet HERE!

Note - The ATC 354 has gone through 3 updates. The oldest timer was the 354A subsequently followed by the 354B and now the 354C.

Other ATC 354C counters are below

354C353Q30PX - 120vac - relay output
354C353R30PX - 240vac - relay output
354C350Q30PJ  - 120vac with Solid State Output
354C350R30PJ  - 240vac with Solid State Output
354C353Q30PJ  - 120vac with Solid State Output
354C353R30PJ  - 240vac with Solid State Output
(The 353 versions are 10-99,990 counts)

Sords Electric
216-765-4230
www.sordselecttic.com