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UPS 250, UPS 300, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supply Caterpillar


Power Distribution Board - Remove and Install

Usage:

UPS 250 APZ
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Illustration 1g03404456

(1) "J34 T1 Fans"

(2) "J31 ACI In"

(3) "J2 Fans"

(4) "J3 AC Out"

(5) "J33 Aux Supply 1"

(6) "J45 Aux Supply 2"

(7) "J32 Cacuum AC 2"

(8) "J26 Cacuum AC 1"

(9) "J40 PS1"

(10) "J41 PS2"

(11) "J43 PS Cap"

(12) "J7 T3 190 V Status"

(13) "J44 Spare"

(14) "J37 SID"

(15) "J10 BCC/PCC"

(16) "J11 ACI"

(17) "J12 UFI/PUI"

(18) "J13 APC"

(19) "J14 SIO"

(20) "J15 Fan"

(21) "J16 EOP"

(22) "J17 FWI"

(23) "J18 DCI/PCI"

(24) "J19 FCD"

(25) "J20 SSI"

(26) "J21 GSC"

(27) "J22 SKI A"

(28) "J23 SKI B"

(29) "J24 SKI C"

(30) "J27 SKI 3"

(31) "J28 SKI 2"

(32) "J29 SKI 1"

(33) "J9 GND"

(34) "J46 COM"

(35) "J35 24P2"

(36) "J8 24P1"

(37) "J38 T3 COM"

(38) "J30 T3 Hot/190 VAC"

(39) "J25 T2 COM"

(40) "J39 T2 Hot/190VAC"

(41) "J1 T2 Hot/230 VAC"

(42) "J5 T1 COM"

(43) "J6 T1 Hot/190 VAC"

(44) "J4 T1 Hot/230 VAC"

(45) "F1 T1 Output 230 VAC"

(46) "F2 T1 Fan Power"

(47) "F3 ACI Input 230 VAC"

(48) "F4 24 V Power Supply"

(49) "F5 T2 Output 230 VAC"

(50) "F6 Vacuum Pump Power"

(51) "F7 T2 Fan Power"

(52) "F8 ACI Output 230 VAC"

(53) "F9 230 VAC Auxiliary Supply 1"

(54) "F10 230 VAC Auxiliary Supply 2"

(55) "F11 24 V Power Supply"

(56) "F12 Not Used"

The power is supplied from the transformer ("T2") for the following fuses:

  • "F6 Vacuum Pump"

  • "F7 Fan Power (1, 3, 4, and 6)"

  • "F8 K2 Contactor Coil"

The power is supplied from the input node ("T1") for the following fuses:

  • "F3 K3 Contactor Coil"

  • "F1 K1 Contactor Coil"

  • "F4 24 V Power Supply"

  • "F2 Fan Power (2 and 7)"

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Illustration 2g00812338

(57) Power Distribution Board

Removal Procedure

  1. Place the system in bypass mode by turning the keyswitch to the "Bypass" Position.

  1. Isolate the system from the load by closing the bypass circuit breakers.

  1. Open the circuit breaker for the output of the system.

  1. Open the AC circuit breaker for the input of the system.

  1. Allow the capacitor banks to bleed down for approximately 5 minutes.

    Note: when the flywheel is spinning, the following components are energized: the bus, the armature leads and the fuses. Accomplish the procedure as quickly as possible. During the procedure, the rotor is spinning on the bottom bearing.

  1. Remove the Static Switch.

  1. Label all the input wires and all of the output wires.

  1. Disconnect the "ACI" input connector from terminal "J31".

  1. Disconnect the "T1 Fans" connector from terminal "J34".

  1. Disconnect the "T1 Hot/230" connector from terminal "J4".

  1. Disconnect the "T1 Hot/190" connector from terminal "J6".

  1. Disconnect the "T1 Com" connector from terminal "J5".

  1. Disconnect the "AUX Supply 2" connector from terminal "J45".

  1. Disconnect the "AUX Supply 1" connector from terminal "J33".

  1. Disconnect the "ACI Out" connector from terminal "J3".

  1. Disconnect the "T2 FANS" connector from terminal "J2".

  1. Disconnect the "VACUUM AC1" connector from terminal "J26".

  1. Disconnect the "VACUUM AC2" connector from terminal "J32".

  1. Disconnect the "T2 Hot/230" connector from terminal "J1".

  1. Disconnect the "T2 Hot/190" connector from terminal "J39".

  1. Disconnect the "T2 Com" connector from terminal "J25".

  1. Disconnect the "J7" connector from terminal "J7".

  1. Disconnect the "J37" connector.

  1. Disconnect the "BCC/PCC" connector from terminal "J10".

  1. Disconnect the "ACI" connector from terminal "J11".

  1. Disconnect the "UIF/PUF" connector from terminal "J12".

  1. Disconnect the "APC" connector from terminal "J13".

  1. Disconnect the "SIO" connector from terminal "J14".

  1. Disconnect the "Fan" connector from terminal "J15".

  1. Disconnect the "EPO" connector from terminal "J16".

  1. Disconnect the "FWI" connector from terminal "J17".

  1. Disconnect the "DCI/PCI" connector from terminal "J18".

  1. Disconnect the "FCD" connector from terminal "J19".

  1. Disconnect the "SSI" connector from terminal "J20".

  1. Disconnect the "GSD" connector from terminal "J21".

  1. Disconnect the "SKI A" connector from terminal "J22".

  1. Disconnect the "SKI B" connector from terminal "J23".

  1. Disconnect the "SKI C" connector from terminal "J24".

  1. Disconnect the "SKI 3" connector from terminal "J27".

  1. Disconnect the "SKI 2" connector from terminal "J28".

  1. Disconnect the "SKI 1" connector from terminal "J29".

  1. Disconnect the "GND" connector from terminal "J9".

  1. Disconnect the "J46/Com" and "J35/24P2".

  1. Disconnect the "24P1" connector from terminal "J8".

  1. Remove the board from the six spacers.

Installation Procedure

  1. Install the new board.

  1. Connect the "24P1" connector to terminal "J8".

  1. Connect "J46/Com" and "J35/24P2".

  1. Connect the "GND" connector to terminal "J9".

  1. Connect the "SKI 1" connector to terminal "J29".

  1. Connect the "SKI 2" connector to terminal "J28".

  1. Connect the "SKI 3" connector to terminal "J27".

  1. Connect the "SKI C" connector to terminal "J24".

  1. Connect the "SKI B" connector to terminal "J23".

  1. Connect the "SKI A" connector to terminal "J22".

  1. Connect the "GSD" connector to terminal "J21".

  1. Connect the "SSI" connector to terminal "J20".

  1. Connect the "FCO" connector to terminal "J19".

  1. Connect the "DCI/PCI" connector to terminal "J18".

  1. Connect the "FWI" connector to terminal "J17".

  1. Connect the "EPO" connector to terminal "J16".

  1. Connect the "FAN" connector to terminal "J15".

  1. Connect the "SIO" connector to terminal "J4".

  1. Connect the "APC" connector to terminal "J13".

  1. Connect the "UIF/PUI" connector to terminal "J12".

  1. Connect the "ACI" connector to terminal "J11".

  1. Connect the "BCC/PCC" connector to terminal "J10".

  1. Connect the "J37" connector.

  1. Connect the "J7" connector to terminal "J7".

  1. Connect the "T2 Com" connector to terminal "J25".

  1. Connect the "T2 Hot/190" connector to terminal "J39".

  1. Connect the "T2 Hot/230" connector to terminal "J1".

  1. Connect the "Vacuum AC2" connector to terminal "J32".

  1. Connect the "Vacuum AC1" connector to terminal "J26".

  1. Connect the "T2 Fans" connector to terminal "J2".

  1. Connect the "ACI out" connector to terminal "J3".

  1. Connect the "AUX Supply 1" connector to terminal "J33".

  1. Connect the "AUX Supply 2" connector to terminal "J45".

  1. Connect the "T1 Com" connector to terminal "J5".

  1. Connect the "T1 Hot/190" connector to terminal "J6".

  1. Connect the "T1 Hot/230" connector to terminal "J4".

  1. Connect the "T1 Fans" connector to terminal "J34".

  1. Connect the "ACI Input" from terminal "J31".

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