Power One PODS 16.48-16000 1940 HEX, Instruction Manual, Page: 18 / 170

4-6 PODS 16.48-16000 1940 HEX
Document number: 039159.fm
Revision: B
System description PODS 16.48-16000 1940 HEX
on a remote PC and can access the system by either direct connection, a LAN, or through a dial-up
modem.
Power-One Network interface (option)
The Power-One Network Interface (PNI) is an optional component, that allows the PCS unit to be remotely
accessed via Ethernet and SNMP. The SNMP protocol allows enhanced managing capabilities and
enables the system to be accessed from any location. The protocol uses simple commands to configure
and control the system and relay the system status to the operator. Using this monitoring ability allows the
alarm messages to be transmitted to any location. The PNI also can be used in conjunction with
PowCom
TM
software either through a modem or Ethernet connection.
See: 8 Operation / Product description PCS 2 on page 8-1
4.4.3 PPR 16/10 23”- Subrack
PPR 16.48 is a subrack for modules in the FMP 16 series. The subrack has up to ten module positions
(max. 10xFMP 16 rectifiers.) The subrack has a connection for AC in, DC out and RS485 for
communication.
Modules are “hot swappable” under full load conditions.
See: 10 Product description PPR 16/10 23” Subrack on page 10-1
4.4.4 PBDU 23” - Distribution Module
DC distribution module with battery breakers, load breakers, shunt for measurement of current, alarm for
battery and load.
The distribution has no special operation other than switching the battery and load breakers on and off. All
DC distribution breakers are supervised by measuring voltage drop across each breaker.
Breakers that are not connected to any load, will not cause breaker alarm even if they are left open.
Note! Due to a small leakage current (2,5-3 mA) through the alarm circuit the voltage measured with a
DVM (Digital Volt Meter) on an open breaker output, will be nearly equal to output rectifier
voltage.
If a battery breaker fault occurs or is simulated it may take from 2-10 minutes before the fault is indicated,
depending on the battery condition.
The distribution module has common "+" and breakers in "-" leg. For more information see schematic
drawing in Appendix A.
See: 7 Product description PBDU 23”
4.4.4.1 Low Voltage Disconnection (LVD)
The system is equipped with low voltage battery disconnection, which prevents the batteries from deep
discharging, thus prolonging the battery life. A disconnection requires a detected mains failure at the
supervision unit. Threshold for disconnection is available.
If disconnection occurs, the batteries will not supply power to the load until they have been recharged to set
voltage level, which can be adjusted by the user.
If disconnection occurs, the batteries will be reconnected when mains supply return.
4.4.5 Cabinet Door With Heat Exchanger (HEX)
The Cabinet door is a lockable door meant to protect the battery compartment from access of unauthorised
personnel. The system heat exchange unit is also mounted in the door.