25
PRELIMINARY
1 Basic Operation (continued)
1.7 Printed Circuit Boards (PCB)
Table 1.7a lists the printed circuit boards present in each UPS system:
Table 1.7a
SU80KX
SU80K
SU80KTV
SU60KX
SU60K
SU40KX
SU40K SU20KX PCB name P/N Description
TOP
V V V V NH-SYS-LCD 16-5505001323 Circuit for LCM, Circuit for LED and Function Key
V V V V NH-SYS-R 16-5505001327 Circuit for RS232, Output Dry Contact, Parallel Port,
Connector to connect with each Power Module, Circuit for
2 Slots
V V V V NH-SYS-X 16-5505001319 Circuit for REPO, Input Dry Contact and Circuit for sense
External Battery Cabinet Temperature
V V V V NH-SYS-M 16-5505001321 System MCU and Control Circuit
V V V V NH-SYS-P 16-5505001325 Auxiliary Power for System, Detect Circuit for Voltage and
Current
V V V V NH-SYS-B 16-5505001317 EMI Filter for Battery Input
V V V V NH-SYS-LA 16-5505001322 Input EMI Filter for each Power Module
V V V NH-SYS-LB 16-5505001353 Input EMI Filter for each Power Module
V V NH-SYS-LC 16-5505001354 Input EMI Filter for each Power Module
V NH-SYS-LD 16-5505001355 Input EMI Filter for each Power Module
BOTTOM
V V NH-SYS-SA 16-5505001370 Driver Circuit for Bypass SCR
V V NH-SYS-S 16-5505001326 Driver Circuit for Bypass SCR
V V V V NH-SYS-FC 16-5505001349 Output EMI Filter
V (2pcs) V (2pcs) NH-SYS-F1(BYP) 16-5505001371 Input EMI Filter for Bypass
V (2pcs) V (2pcs) NH-SYS-F1(MAIN) 16-5505001371 Input EMI Filter for Main
V V NH-SYS-F2(MAIN) 16-5505001373 Input EMI Filter for Bypass
V V NH-SYS-F2(BYP) 16-5505001374 Input EMI Filter for Main
V V NH-SYS-F3 16-5505001372 Circuit for Surge suppress
V (2pcs) V (2pcs) NH-SYS-FA 16-5505001347 Input EMI Filter
V V V V NH-SYS-FB 16-5505001346 Circuit for Bypass Back-feed Detect
