Menu 500 Ups Settings - ABB PCS100 UPS-I User Manual

PCS100 UPS-I User Manual
10.3.6

Menu 500 UPS Settings

500 UPS Settings
This menu contains the electrical settings for the UPS functionality.
Parameter: 520 Max Autonomy Period
Function: Sets the maximum time the PCS100 UPS-I can correct a surge or sag
Access: Operator
Range: 0 to 60,000. 0 = infinity
Units: ms
Factory 0
Setting:
Notes: Prevents the PCS100 UPS-I from supplying power continuously under no load conditions.
Parameter used to meet UL safety requirements for UPS implementations that do not have
an input contactor.
For a PCS100 UPS-I without an 'SCR off' detection board this parameter must be set to 15
seconds or less if UL safety requirements are to be met.
Parameter: 521 Walk in Time
Function: Sets the time period over which the PCS100 UPS-I will softly transition load to a generator
Access: Tech
Range: 0 to 8,000
Units: ms
Factory 0
Setting:
Setting up: Set to an appropriate time to allow the generator to take up the load. For applications with
no generator set to "0".
Note: Required for integrating with auxiliary generators.
Parameter: 530 RMS Sag Threshold
Function: Low RMS voltage deviation threshold below which the PCS100 UPS-I will transfer the load
to the backup energy storage
Access: Operator
Range: 0 to 200%
Units: % (base = Parameter 121 Utility Voltage)
Factory 90%
Setting:
Note: If the input RMS voltage falls below this value the PCS100 UPS-I will transfer to backup
storage. Response time is about one half cycle i.e. 10 ms for a 50 Hz supply or 6.2 ms for 60
Hz.
Setting up: Set to the lowest supply variation that the load can withstand. If adjusted too fine the
PCS100 UPS-I will switch to the energy storage unnecessarily and there will be less storage
available during critical sags.
Parameter: 531 RMS Surge Threshold
Function: RMS high voltage threshold above which the PCS100 UPS-I will transfer the load from the
utility to the backup energy storage
Access: Operator
Range: 0 to 200%
Units: % (base = Parameter 121 Utility Voltage)
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