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 080515

228-1744 REV 3

3

KEPCO, INC. 



 131-38 SANFORD AVENUE 



  FLUSHING, NY. 11355 U.S.A.



  TEL (718) 461-7000



 FAX (718) 767-1102

http://www.kepcopower.com   



 email: [email protected]

FIGURE 2.  BOP 1KW COMPONENT LOCATIONS

4.

Install the 4-pin cable assembly (P/N 118-1266) on Transition Circuit A7A3J3 of the PCB (see Figure 1). Route
the cables as shown by Figure 6. This cable has three (3) unterminated wires. Determine the needed length,
cut the wire and remove the insulated sleeving (approximately 0.15"), then solder each wire to the indicated
point (see Figure 3 for A4A8 component locations and Figure 6 for cable routing):

• red wire to A4A8D1 Cathode

• black wire to A4A8D1 Anode

• white wire to A4A8TP2

3043897

CHASSIS GROUND CONNECTION

SCREW (QTY 2), PHPH, 

6-32 X 0.5 IN., ST

KEPCO P/N 101-0519

TRANSITION CIRCUIT 

ASSEMBLY A7A3

A2A5 ASSEMBLY

(SEE FIGURE 4.)

A4A3 ASSEMBLY

(SEE FIGURE 3.)

A1 ASSEMBLY

(SEE FIGURE 2.)

OUTPUT MODULE 

(A2) FAN

NOTE:

TO MOUNT TRANSITION 
CIRCUIT ASSEMBLY A7A3

INSERT ONE SCREW IN 

VENTILATION HOLE A, THE

OTHER IN HOLE B. IF THE 
CHASSIS BOTTOM MUST 
BE FLUSH TO A FLAT 
SURFACE, THE CHASSIS 
HOLES  A AND B MUST BE 
COUNTERSUNK.

(PARTIAL TOP VIEW)

B

(SEE NOTE.)

FAN MOUNTING

SCREW

A

(SEE NOTE.)

FRONT 
PANEL

Содержание KIT 219-0548

Страница 1: ...peration mode at an increased level of power as the preload is turned off by the Source Recuperation Detector This permits a sharper transition towards Sink Recuperation mode If the Front End switches to Source mode the preload is activated for a predetermined period of time in order to boost the power requested from the Front End resulting in a sharper transition towards the Source mode 2 APPLICA...

Страница 2: ...bled to the Heatsink with the preload MOSFET mounted directly on the heatsink Figure 1 FIGURE 1 TRANSITION CIRCUIT ASSEMBLY COMPONENT LOCATIONS 1 Attach the adapter plate provided in this kit to the Transition Circuit assembly heat sink using two flat head screws P N 101 0332 provided in this kit 2 Install the Transition Circuit assembly as shown in Figure 2 by sliding the adapter plate under the ...

Страница 3: ...lder each wire to the indicated point see Figure 3 for A4A8 component locations and Figure 6 for cable routing red wire to A4A8D1 Cathode black wire to A4A8D1 Anode white wire to A4A8TP2 3043897 CHASSIS GROUND CONNECTION SCREW QTY 2 PHPH 6 32 X 0 5 IN ST KEPCO P N 101 0519 TRANSITION CIRCUIT ASSEMBLY A7A3 A2A5 ASSEMBLY SEE FIGURE 4 A4A3 ASSEMBLY SEE FIGURE 3 A1 ASSEMBLY SEE FIGURE 2 OUTPUT MODULE ...

Страница 4: ...s as shown by Figure 6 This cable assembly has a 5 pin connector with five 5 unterminated wires Determine the needed length cut the wire and remove the insulated sleeving approximately 0 15 then sol der each wire to the indicated point of assembly A2A5 see Figure 4 for location of wire attachment points and Figure 6 for cable routing white yellow wire to A2A5D26 Anode white blue wire to junction o...

Страница 5: ... P N 115 2597 150K Ohms 1 0 125W Install and solder replacement R58 and R70 supplied P N 115 2809 200K Ohms 1 0 25W FIGURE 5 A4A3 COMPONENT LOCATIONS 8 Reinstall A4A3 by following the reverse of step 6 above 9 Perform visual inspection of transition circuit installation CAUTION After installing all components and wiring as described above perform the following checklist to verify that installation...

Страница 6: ...D AVENUE FLUSHING NY 11355 U S A TEL 718 461 7000 FAX 718 767 1102 http www kepcopower com email hq kepcopower com FIGURE 6 TRANSITION CIRCUIT ASSEMBLY CABLE ROUTING NOTE Components shown are typical arrangement may differ depending on unit revision ...

Страница 7: ...e voltage limit to the full scale value 6V 5 Verify that the DVM measures 10V 0 1V 6 Set the output current to negative full scale Verify the DVM measures 10V 0 1V then turn off the unit 3 4 3 A7A3R17 Measurement 1 With the unit turned off connect the DVM across A7A3R17 reference lead connected to the resistor end near est to A7A3J4 2 Disconnect the short circuit from the output and connect a resi...

Страница 8: ...nges the message flag from SOURCE to SINK and the DVM jumps from 1 24V to zero 9 Gradually decrease PS current When PS current reaches approximately 5 1A 0 8A green LED indicator A4A3DS3 goes on yellow LED A4A3DS2 goes off the BOP display changes the message flag from SINK to SOURCE and the scope will show a 15V 5mS positive pulse 10 Turn off the unit and disconnect all the test equipment from the...

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