Honeywell HPM, Service

Page: 89 / 498

2 Equipment Description
2.15 Power Systems
R688 HPM High-Performance Process Manager Service 89
December 2020 Honeywell
2.15 Power Systems
Power System features
SHOCK HAZARD
Troubleshooting, opening this equipment and removing any panels or covers
will expose the
user to the risk of a shock hazard. There are no user
serviceable parts inside this equipment. Refer all servicing only to qualified
service personnel .
The High-Performance Process Manager Power System provides 24 Vdc power for operation of all
HPMM cards, IOP cards, FTAs, a nominal 3.6 Vdc battery output for backup of the HPMM and IOP
memory circuits, and a nominal 0.25 ampere, 6 Vac output for operation of a LLAI line frequency noise
cancellation clock circuit. There are three types of Power Systems. They are listed below.
Power System Type Description
Early production Standard Power System
(Model MU/MC-PSSX03)
(Model MU/MC-PSRX03)
(Model MU/MC-PSRB03) This power system appears in early
production HPM cabinets as well as HPM
cabinets that were upgraded from PM or
APM configurations.
HPM Standard Power System
(Model MU/MC-PSSX04)
(Model MU/MC-PSRX04)
(Model MU/MC-PSRB04) An enhanced version of power system
that will be incorporated some time after
initial HPM cabinets are shipped. An
upgrade kit for upgrading PM and APM
Power Systems will be available.
AC Only Power System (optional)
This Power System is intended for use
with an uninterruptible ac power source. It
does
not provide a battery backup option
for continuous operation in the event of a
primary power loss.
Standard Power System
The Standard Power System has many versatile attributes that include:

An optional redundant Power Supply Module (model MU-PSRX04)

Either 120 Vac or 240 Vac input power. A single or dual source of input power can be connected
when the optional redundant Power Supply Module option is implemented

Single and redundant Power Supply Module failure detection

CMOS memory NiCad battery backup (3.6 Vdc) with failure detection

An optional 48 Vdc Battery Backup Module (model MU-PSRB04) with a disconnect connector that
provides continuous equipment in the event of a primary power loss

Provides fused ac power for 4 cabinet fan assemblies
48 volt battery backup time duration
The 48 volt battery backup time duration for a redundant HPM cabinet containing redundant HPMMs
and a total of 40 IOPs (40 nonredundant or 20 redundant pairs) is approximately 20 minutes for a fully
charged battery.