Basic Circuits

Foreword

We recommend that the information in this book be used only as a guide to determine the availability of a circuit and its components. Remember, even the best and most time proven circuit may fail because of the wrong choice of equipment. For this reason we make no attempt to define specific electical parameters or component values.

Automatic Electric pioneered automatic telephone switching more than 60 years ago. Along with our growth in telephony, we have designed and furnished relays and switches for many industrial applications, making us uniquely qualified to advise our customers.

Our service extends to the expert engineering and manufacture of entire control systems. Call on our experienced staff engineers and salesmen to help you with control circuitry, engineering details, and component selection. If you prefer, address requests for such guidance to the home office: Automatic Electric Company, Director, Control Equipment Sales, Northlake, Illinois.

Copyright 1967, Automatic Electric Company

• Image 1
  • Relay Transfer Trees
    • Basic four-relay transfer tree. Fig. 1
    • Rearrangeent of basic four-relay transfer tree. Fig. 2
• Image 2
  • Relay Coil Symbols
    • Quick-acting coils. Fig. 3
    • Slow-acting coils. Fig. 3
    • Slow-releasing coils. Fig. 3
    • Slow-operating coils. Fig. 3
  • Relay Coil Terminal Connections
    • Single-wound coils. Fig. 3
    • Double-wound concentric coils. Fig. 3
    • Double-wound two-section coils. Fig. 3
    • Single-wound slugged coils. Fig. 3
    • Single-wound sleeved coils. Fig. 3
    • Single-wound sleeved and slugged coils. Fig. 3
  • Slow-Operating and Slow-Releasing Circuits
    • Slow release by non-inductive shunt. Fig. 4
    • Slow release by shorted heel-end winding. Fig. 5
    • Slow operate by shorted armature-end winding. Fig. 6
    • Slow operate and release by series resistor and shunt condenser. Fig. 7
    • Slow operate by switched condenser shunt and series resistor. Fig. 8
• Image 3
  • Relay Locking Circuits
    • Locking on operating winding. Fing. 9(a)
    • Locking on auxiliary winding. Fig. 9(b)
  • Forced Release of Relay
    • Double-wound relay. Fig. 10
    • Shunt release of single wound relay. Fig. 11
  • Remote Two-Wire to Three-Wire Impulse Control
    • Remote impulse control including reset over two wires (A B function). Fig. 12
    • Remote switching of groups of impulses (A B C function). Fig. 13
• Image 4
  • Information Transfer as a Function of Impulse Trains
    • Simple counting chain, two relays per step. Fig. 14
    • Endless counting chain, two relays per step. Fig. 15
• Image 5
  • Count up, count down chain, two relays per step. Fig. 16
  • Bi-directional counting chain, add and subtract input, two relays per step. Fig. 17
• Image 6
  • Pulse Generators
    • Low speed capacitive generator. Fig. 18
    • Medium speed slugged relay generator. Fig. 19
    • High speed relay generator. Fig. 20
  • Pulse Stretching
    • Single-wound coil with non-inductive shunt. Fig. 21
    • Two single-wound relays. Fig. 22
• Image 7
  • Relays with Cam-Operated Contacts (Series OCS)
    • Pulse driven with reset function. Fig. 23
    • Mechanically latched on-off function. Fig. 24
  • A.C. Rectifier Circuits
    • Cat. No. PA-97 rectifier. Fig. 25
    • Cat. No. PA-98 rectifier. Fig. 26
• Image 8
  • Rotary Switch Circuits
    • Current limiting resistor for long pulse duration. Fig. 27
    • Pulse inversion circuit for "direct drive" of rotary stepping switch. Fig. 28
    • Self-interrupted searchinf for absense of potential. Fig. 29
    • Self-interrupted searching for presence of potential. Fig. 30
• Image 9
  • Self-interrupted stepping, shunt stopping. Fig. 31
  • Self-stepping, relay interrupted. Fig. 32
  • Lock pulsing. Fig. 33
  • Wiper disconnect circuit during stepping. Fig. 34
• Image 10
  • Local Sequential Stepping Switch Control Without Relays. Fig. 35
  • Predetermined Rotary Switch Counter
    • Decimal count and carry. Fig. 36(a)
• Image 11
  • Predetermined count chain circuits. Fig. 36(b)
  • Count complete function output and reset circuit. Fig. 36(c)
• Image 12
  • Sequential Stepping. Fig. 37
  • Synchronized Stepping. Fig. 38
• Image 13
  • Typical count, connect, recycle circuit. Fig. 39

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This information is provided by Joe Stevens. If you find it useful,please let me know.