User's Manual

SBS-900 Shore Based Radar Systems
Chapter 9: Planned maintenance
KH-1602-2 issue 1: Standard SBS900 Systems Operator & Maintenance Handbook
Page 101 of 240
9.6.1 5 year maintenance: VF-S11
5-year maintenance: Changing the static inverter in the RDU
Inspection sheet
1 of 6
After 5-years of use, the static inverter located within the Radar Distribution Unit must be changed as
over time the electrolytic capacitors within the inverter can dry out.
This maintenance procedure applies to Radar Distribution Units fitted with the inverter detailed below.
Equipment details
Radar Distribution Unit (RDU) Replacement Inverter
Part number SBS-A1- Part number 45-690-0065-001
Serial number Serial number
Toshiba VF-S11
With the exception of the user replaceable
fan, the VF-S11 inverter is a sealed unit that
contains no field serviceable or repairable
parts.
The unit must never be dismantled or
repaired in the field.
Toshiba VF-S11 inverter
Radar distribution unit
Inverter
replacement date
(DD/ MM/ YYYY)
Changed by
Print: Sign:
Tools required A general selection of flat and cross headed screwdrivers.
Skill level
Mechanical and electrical training including awareness of single and three
phase AC supplies.
Time Less than two hours depending on equipment location and accessibility
Health and safety
WARNING: Prior to commencing any maintenance procedure, users must familiarise
themselves with the health & safety warnings noted in the planned maintenance and health
and safety sections of the system handbooks.
AC power: Prior to carrying out any planned maintenance, the system must be fully
isolated and disconnected from all sources of single and 3-phase supply including any
UPS supported supplies.
Warning: When powered lethal voltages are present on the terminals and within the
inverter.