UPS 1000S/ UPS 1200S Uninterruptible Power Supplys Caterpillar


Maintenance Bypass Controller PWA

Usage:

ES12F CZE


The Maintenance Bypass Controller Board is based on the Breaker and Contactor Status Board. The Maintenance Bypass Controller Board controls the Maintenance Bypass Circuit Breaker.


Illustration 1g01337065

Maintenance Bypass Circuit Breaker Left Panel Components

(1) Maintenance Bypass Circuit Breaker Controller Board

(2) Maintenance Bypass Circuit Breaker Power Supply Board (MPS)

(3) Time Delay Relay

The Maintenance Bypass Controller Board is linked to the K5 Output Circuit Breaker in the System Input/Output Cabinet. The operation of K5 may be coordinated with the operation of the Maintenance Bypass Circuit Breaker. The Maintenance Bypass Controller Board is a stand-alone machine controller for the Maintenance Bypass Cabinet.

All status conditions and needed conditions are inputs to the Maintenance Bypass Controller Board. So, all needed conditions are monitored for a safe and controlled transfer to and from Maintenance Bypass. The Maintenance Bypass Controller Board controls the Maintenance Bypass Circuit Breaker and the K5 breaker in the proper sequence in order to guarantee an overlapped transfer with no interruption to or interruption from Maintenance Bypass for service of the Series 1200 UPS.

Multidrop Bus

The Maintenance Bypass Controller Board provides serial data over the Series 1200 Multidrop Bus. The Maintenance Bypass Controller Board functions as a slave on this bus, receiving commands from the APC-2 and responding with status information.

The Maintenance Bypass Controller Board has a 100-Ohm Terminating Resistor for the Multidrop bus that is selectable by the use of a jumper. Jumper JMP9 provides terminal resistance. There is also a switch that sets the Node ID. Set the Maintenance Bypass Controller Board Node ID and Terminating Resistor jumper to the settings on the following table:

Table 1
Maintenance Bypass Controller Board Multidrop Settings    
Node ID     6    
Terminating Resistor     JMP9 - Installed if no 4-Wire option present and Maintenance Bypass Cabinet present    

Refer to Systems Operation, Testing and Adjusting, RENR7654, "Multidrop Network - Setup" for information on setting up the Multidrop Network.

Fuses

The fuses are indicated in Table 2 below. Visually inspect the fuses. Replace the fuse if the fuse is blown.

Table 2
Maintenance Bypass Controller Board Fuses    
Fuse     Amperes     Protects    
Maintenance Bypass Controller Board - F2     5A Time Lag     Output Breaker (K5) Motor Operator    
Maintenance Bypass Controller Board - F3     5A Time Lag     OK to transfer From Maintenance Bypass Lamp    
Maintenance Bypass Controller Board - F4     5A Time Lag     Unused    
Maintenance Bypass Controller Board - F5     5A Time Lag     OK to transfer from Maintenance Bypass Lamp    
Maintenance Bypass Controller Board - F6     5A Time Lag     Unused    
Maintenance Bypass Controller Board - F7     5A Time Lag     Maintenance Bypass Breaker Close Coil    
Maintenance Bypass Controller Board - F8     5A Time Lag     Output Breaker (K5) Close Coil    
Maintenance Bypass Controller Board - F9     5A Fast     Maintenance Bypass Shunt Trip    
Maintenance Bypass Controller Board - F10     5A Fast     Output Breaker (K5) Shunt Trip    
Maintenance Bypass Controller Board - F11     5A Time Lag     Maintenance Bypass Breaker Motor Operator    

LED Indicators

The LEDs on the Maintenance Bypass Controller Board indicate the status of the Maintenance Bypass Controller Board depending on the state of the system. The following tables show the LED indicators and the LED indicators states.

Table 3
Maintenance Bypass Circuit Breaker LED Indicators D1 - D5    
LED     Transfer TO Maintenance Bypass NO BREAK     Transfer TO Maintenance Bypass WITH BREAK     Transfer FROM Maintenance Bypass NO BREAK     Transfer FROM Maintenance Bypass WITH BREAK    
D1     Maintenance Bypass Breaker closing     Output Breaker (K5) opening     Output Breaker (K5) closing     Maintenance Bypass Breaker opening    
D2     One (1) Second overlap: Maintenance Bypass Circuit Breaker and K5 closed     One (1) second break delay: Maintenance Bypass Circuit Breaker and K5 opened     One (1) second overlap: Maintenance Bypass Circuit Breaker and K5 closed     One (1) second break delay: Maintenance Bypass Circuit Breaker and K5 opened    
D3     Output Breaker (K5) opening     Maintenance Bypass Breaker closing     Maintenance Bypass Breaker opening     Output Breaker (K5) closing    
D4     To Maintenance Bypass sequence failure     To Maintenance Bypass sequence failure     From Maintenance Bypass sequence failure     From Maintenance Bypass sequence failure    
D5     Maintenance Bypass Controller Board datalock to APC     Maintenance Bypass Controller Board datalock to APC     Maintenance Bypass Controller Board datalock to APC     Maintenance Bypass Controller Board datalock to APC    

Table 4
Maintenance Bypass Circuit Breaker LED Indicators D24- D29    
LED     Purpose    
D24     Lit when OK to Transfer FROM Maintenance Bypass    
D26     Lit when OK to transfer TO Maintenance Bypass    
D28     Maintenance Bypass Circuit Breaker Close Command    
D29     K5 Close Command    

Maintenance Bypass Controller Board Diagram




Illustration 2g01273553

Maintenance Bypass Control Board

(5) Multidrop "J1"

(6) Terminating Resistor "JMP1"

(7) Node ID "SW1"

Removal


NOTICE

Electrostatic discharge can damage integrated circuits or semiconductors if you touch bus connector pins. When not in use, keep the module in the static-shield bag. Follow these guidelines when you handle any module:

Touch a grounded object to discharge static potential.

Wear an approved wrist-strap grounding device.

Do not touch the bus connector or connector pins.

Do not touch circuit components inside the module.

If available, use a static-safe work station.


  1. Perform steps in the Systems Operation, Testing and Adjusting, "Internal Component Preremoval Steps (Maintenance Bypass Cabinet)" in order to de-energize the system and gain access to internal components.

  1. Disconnect all connectors from the board. The connectors locations in the unit are labeled. Verify each connector to make sure that the label is present and legible.

    Refer to Illustration 2.

  1. Unscrew the cross tip screw from the lower left corner of the Board.

  1. Disconnect the seven white plastic stand-offs connecting the board to the left panel using the following method.

    Note: The board must be removed from the stand-offs without bending the board.

    1. Pinch the head of each stand-off so that the board is not locked to the stand-off but is still attached to the stand-off.

    1. Remove the board by gently and evenly pulling the board from all stand-offs at the same time.

Installation


NOTICE

Electrostatic discharge can damage integrated circuits or semiconductors if you touch bus connector pins. When not in use, keep the module in the static-shield bag. Follow these guidelines when you handle any module:

Touch a grounded object to discharge static potential.

Wear an approved wrist-strap grounding device.

Do not touch the bus connector or connector pins.

Do not touch circuit components inside the module.

If available, use a static-safe work station.


  1. Position the board in the cabinet over the seven white stand-offs that are connected to the left panel.

  1. Push the board, gently and evenly, onto all the stand-offs simultaneously. Make sure all stand-offs are locked in place.

  1. Insert the cross tip screw in the lower left corner of the board and screw the cross tip screw into the left panel.

  1. Plug the wire connectors into the correct connectors on the board. Check the labels on each connector for proper placement.

    Refer to Illustration 2.

Caterpillar Information System:

UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Modbus Network - Setup
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Rotor Position Sensor - Calibrate
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Thyristor (MMS System Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Overload Relay (MMS System Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Circuit Breaker (MMS System Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Controller PWA (MMS System Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Contactor (MMS System Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Zig Zag Transformer (MMS System Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Bypass Static Switch (MMS System Cabinet)
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Modem (MMS System Cabinet)
TA22-4WD Agricultural Transmission Specifications
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies MOV Surge Protector
Filtration Procedure for Transmission Oil on Motor Graders Without Ecology Drain {0680, 0768, 3030} Filtration Procedure for Transmission Oil on Motor Graders Without Ecology Drain {0680, 0768, 3030}
C4.4 Industrial Engine Air Inlet and Exhaust System - Inspect
2006/05/29 Do Not Reuse the Hold Down Bolts for the Fuel Injector {1290}
2014/08/14 Do Not Reuse the Hold Down Bolts for the Fuel Injectors On All Products that Contain C9 Through C32 Engines {1290}
2006/06/01 Do Not Reuse the Hold Down Bolts for the Fuel Injector {1290}
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Ethernet - Configure
C7 and C9 On-Highway Engines Engine Monitoring Parameters
UPS 1000S/ UPS 1200S Uninterruptible Power Supplys Maintenance Power Supply PWA
2006/05/29 Radiator pedestal on 1104C-TAG engines: Smaller engine mounting holes for improved accuracy of the fan position in the radiator cowl. {1353}
UPS 120, UPS 150, UPS 250, UPS 300, UPS 301, UPS 500, UPS 600, UPS 750 and UPS 900 Uninterruptible Power Supplies Remote Input/Output Dry Contact - Setup
2006/06/01 New Connecting Rod and Main Bearings {1203, 1218, 1230}
UPS 1000S/ UPS 1200S Uninterruptible Power Supplys Time Delay Relay
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.