Product Description
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| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Mounting Type | DIN Rail |
| Relay Type | Solid State Relay |
| Function | Interval, On-Delay |
| Circuit | SPDT (1 Form C) |
| Delay Time | 9999 Counts |
| Contact Rating @ Voltage | 5A @ 120VAC/30VDC |
| Voltage - Supply | 120VAC |
| Termination Style | Screw Terminal |
| Timing Adjustment Method | Up/Down Digit Keys |
| Timing Initiate Method | Input Voltage |
| Series Features |
| 354C Series Shawnee II High Speed Counter |
| Series Description: The solid-state 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 relaythe 354s only significant mechanical componenthas 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. |
| Series Operation: The 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 counters 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 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 counters 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. |
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