EUK-7-100130000 - Firing Circuit, 6 Pulse


 
 
 
 
 
 
  This item replaces 
  • EU-10013K

  Description
  • The EUK-7-100130000 is an assembly that has been designed to provide gate firing pulses to 6-pulse thyristor controlled power supplies.  The assembly consists of two circuit boards.  The top board has the logic and control circuitry, the bottom board has the gate output.  The circuit has six isolated ‘hard fire’ outputs spaced 60° from each other.  Hard fire provides a high gate current for a very short time, followed by a ‘backporch’ current.

  Terminal Connections

 

Terminal

Label

Function

1

115 Vac

115 Vac Input Power

2

115 Vac

115 Vac Input Power

3

-PS

-12 Vdc power for external use

4

COM

Circuit Common

5

+PS

+12 Vdc power for external use

6

50 HZ

Connect to +12 volts for operation in 50 HZ systems

7

OPEN LOOP

Connect to +12 volts for OPEN LOOP control.  This allows circuit output control with an on-board potentiometer.  This is a trouble shooting mode that allows output control of a power supply without the use of a regulator or an external voltage source.  Clockwise rotation of this control will give firing circuit output. The control should always be left at maximum ccw rotation when it is not in use.

8

RELAY N.O.

Ready relay normally open contact.  This contact will close when the logic circuits are operating properly and the circuit is not INHIBITED

9

RELAY COM

Ready relay common

10

RELAY N.C

Ready relay normally closed contact.  This contact will open when the logic circuits are operating properly and the circuit is not INHIBITED

11

FC+

Firing circuit control voltage positive

12

FC-

Firing circuit control voltage negative

13

RDY

An open collector output stage that is pulled down when the logic circuits are operating properly and the circuit is not inhibited.

14

INH

A voltage of +10 to +24 volts will inhibit firing circuit output.

15

Not Used

16

G1

An open collector that is pulled down when Gate 1 is ON. 

17

G2

An open collector that is pulled down when Gate 2 is ON. 

18

G3

An open collector that is pulled down when Gate 3 is ON. 

19

G4

An open collector that is pulled down when Gate 4 is ON. 

20

G5

An open collector that is pulled down when Gate 5 is ON. 

21

G6

An open collector that is pulled down when Gate 6 is ON. 

22

B+  

+12 Volts to be used with additional Gate Circuits

  Adjustment Functions
  • N/A
  Contact us for the following items: 
 
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