Helios Power Solutions BRAVO ST 230 VAC, User Manual

Page: 38 / 39

15. Maintenance Task
As maintenance will be performed on live system, all tasks should be performed only by trained personnel with sufficient
acknowledge on TSI product.
Tasks :
 Identify the site, customer, rack number, product type.
 Download and save configuration file for back up.
 Check configuration file to be in accordance with operational site conditions.
 Read and save log file for back up.
 Check and analyze log file, and if alarm are present.
 Replace dust filter if present. Filter is mandatory in dusty environment.
 Check module temperature and log value. If internal temperature is higher then previous year, it should be interesting
analyze if it is due an increasing load or dust effect. It is common to have a delta of 15°C by 30% of load between the
ambient and the internal temperature. If temperature increase due internal dust built up clean the TSI with vacuum cleaner
and/or soft compressed air.
 Clean cabinet (vacuum cleaner or dry cloth)
 Control the inverter mapping (AC Group, DC Group, Address)
 Check load level and record the rate value (print in word document the 4 screen modules information for the 32 modules,
the 3 screen for the phases value and the 2 screens for the group AC and DC value)
 Change the configuration file for AC and DC mix mode to check that all TSI work on both power supply
 Check alarm operation (e.g., redundancy lost, mains failure, DC failure) on dry contact and through SNMP system or web
interface.
 Switch OFF AC IN and check alarms.
 Check temperature terminal and temperature wiring. If possible use an infrared camera.
 Read and record value as wave form, power factor, Crest factor, THD I from power analyzer.
 Take cabinet picture
 Keep track of report and provide end user with a copy.
 Perform a MBP procedure. This task is not really recommended*, but could be demanded by site manager.
* It is not recommended because when you perform a By-pass procedure, generally there is no back up on AC input line, and the
load shutdown if mains disappear.
38 – Bravo ST 230 VAC– User manual – v7.3
Maintenance Task