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228-1744 REV 3

 080515

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 3.  A4A8 COMPONENT LOCATION/WIRING

5.

Install the 5-pin cable assembly (P/N 118-1265) on Transition Circuit A7A3J1 (see Figure 1) of the PCB. Route
the cables 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 of A2A5R40 and J3, pin 6

• black wire to A2A5TP1

• red wire to A2A5TP7

• white wire to A2A5TP8

FIGURE 4.  A2A5 COMPONENT LOCATION

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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