Emerson MPR15 Series User Manual

102   Appendix A:  NT5C10BF-1 and NT5C10BP 

UM5C06B / C ( 169-2071-500 )   P0711722   Standard 10.00   May 2001 

Available alarms for monitoring the status of the FTIP power system are as 

follows: 

- 

LVA Battery Return (RTN) 

- 

LVDA Battery Return (RTN) 

- 

RFA Battery Return (RTN) 

- 

NSR (No Standby Rectifier) Battery Return (RTN) 

The power and signal cables are terminated as follows: 

a) Power 

cables: 

-Battery Return (RTN A)  

 

TB1-1 (white with red tracer) 

-Battery (-48 A) 

TB1-2 (Red) 

b) Signal 

cables: 

-Negative Sense (RC-) 

TB1-1 -48V 

-Positive Sense (RG+) 

TB1-2 RTN 

-Jumper (see Note below) 

TB1-3 

-Jumper (see Note below) 

TB1-4 

-Rectifier Fail (RFA) 

TB1-5 

-No Standby Rectifier (NSR) 

TB1-6 

-Low Voltage Disconnect (LVDA) 

TB1-3 part of LVD unit 

-Low Voltage Alarm (LVA) 

TB1-6 part of LVD unit 

 

When the Main 2 rectifier is missing TB1-3 and TB1-4 

must be strapped together. 

Refer to User Manual (UM) 167-7011-010 Voltage Level Limits for Power 

Plants, Rectifiers and Controllers. 

The MPR25EX rectifier will be used in FTOP applications. Three rectifiers 

maximum can be used for a system. One or two of the rectifiers (Main) are 

active and carry the load, while the other (standby rectifier) is inhibited. It 

will be activated upon failure of one of the main rectifiers. The rectifier at the 

center will be wired as standby and the other rectifiers will be active. The 

maximum power capacity of the system is 50 A.