Xtreme Power Conversion P91 - 7.2.6 Quick Start

Xtreme Power Conversion Corporaon
P91, TX91, TX91L, TXVR Service Manual
Page 26
Uninterrupble Power Supply
Regulaon Process for Single UPS
1. BUS voltage regulaon: When the UPS runs in AC mode, measure ±BUS voltage with the mulmeter, and
then regulate ±BUS voltages to 360±0.5V by using BUS regulaon command. (BUS voltage can be regulated
about 0.1V every point by using BUS regulaon command).
2. INV output voltage regulaon: When the UPS runs in the Inverter mode, measure the output voltage with
the mulmeter, and regulate the output voltage to 230±0.5V by using output voltage regulaon command.
(INV output voltage can be regulated about 0.1V every point by using output voltage regulaon command).
3. Output current regulaon: When the UPS runs in the Inverter mode with full R load, measure the output
current, and rread UPS sampled output current value by QGS command. Use OC command to regulate the
UPS sampled output current value to match your measured value. (Output current can be regulated about
0.1A every point by using output voltage regulaon command).
Notes:
1. Make sure the ground of the UPS connects to earth safely during parameter regulaon.
2. New assembly UPS must be regulated.
3. UPS which have been replaced CNTL and / or SPS-Charger board must be regulated again.
4. All the commands use capital leers.
5. All the above parameter regulaon cannot be accumulated.
6. All the regulaon will be saved in the ash memory of the CNTL when UPS shutdown with baery con-
nected.
7.2.6 Quick Start
Before any detail check for UPS, please check the components listed in the following table. This acon could help
you nd problem quickly and make debug procedures go smoothly.
Note: Make sure that the capacitor voltage is lower than the safety voltage before disassembling any
parts to do checking procedure.
10k Main Power Secon
Circuit Block Checked components Component Type Failure condion
DC FUSE F3, F4 Fuse Open
Recer Q27, Q18, Q21 SCR A-K Short or open
PFC D33, D35 Diode Short or open
Q22, Q23, Q24, Q25 IGBT C-E short or open
INV D52, D62 Diode Short or open
Q7, Q8, Q9, Q10, Q12, Q15 IGBT C-E short or open
STS Q13, Q14, Q20, Q46 SCR A-K Short or open