Eaton QD5 User Manual

Table10. Function codes (continued)
Parameter
Unit of
Measure
Security Level
Default Value
Key Entry Limit
To Read To Write To Reset Low High
004 Fwd Line Drop
Comp. Resistance
XX.X Volts
Volts/% View Modify NA 0.0 -96.0 96.0
•The resistive line-drop compensation value is used to model the resistive line voltage
drop between the regulator and the center of regulation.
•The control uses this parameter, in conjunction with the regulator configuration (FC 41)
and the load current, to calculate and regulate to the compensated voltage (displayed at
FC 8) during forward power flow.
•If an alternate configuration is active, the fourth LCD line displays which one is active,
e.g. (ALT CONFIG 1).
•If FC 148 Nominal Load Voltage is set to 240 Volts, limits are expanded (doubled).
•If FC 148 is set to System Line Voltage, this setting must be set as a percentage of the
set voltage.
005 Fwd Line Drop
Comp. Reactance
XX.X Volts
Volts/% View Modify NA 0.0 -96.0 96.0
•The reactive line-drop compensation value is used to model the reactive line drop voltage
between the regulator and the center of regulation.
•The control uses this parameter, in conjunction with the regulator configuration (FC 41)
and the load current, to calculate and regulate to the compensated voltage (displayed at
FC 8) during forward power flow.
•If an alternate configuration is active, the fourth LCD line displays which one is active,
e.g. (ALT CONFIG 1
•If FC 148 Nominal Load Voltage is set to 240 Volts, limits are expanded (doubled).
•If FC 148 is set to System Line Voltage, this setting must be set as a percentage of the
set voltage.
006 Load Voltage
Secondary
XXX.X Volts
Volts View NA NA NA NA NA
•This is the fundamental RMS voltage, referred to the secondary, which appears at the
output (load) terminals of the regulator.
•Since ratio correction is performed by the firmware, this parameter is scaled according to
the inputs at FC 43 (System Line Voltage) and FC 44 (Overall PT Ratio)
•During reverse power operation, the control requires source voltage from a differential or
source potential transformer or from the source voltage calculation (see FC 39) to obtain
this parameter. Lack of this voltage will result in the parameter displaying dashes.
007 Source Voltage
Secondary
XXX.X Volts
Volts View NA NA NA NA NA
•This is the fundamental RMS voltage, referred to the secondary, which appears at the input
(source) terminals of the regulator.
•Since ratio correction is performed by the firmware, this parameter is scaled according to
the inputs at FC 43 (System Line Voltage) and FC 44 (Internal PT Ratio).
•During forward power operation, the control requires source voltage from a differential or
source potential transformer or from the source voltage calculation (see FC 39) to obtain
this parameter. Lack of this voltage will result in the parameter displaying dashes.
48
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225003EN April 2018
CL-7 Voltage Regulator Control

Eaton QD5 Specifications

General

Brand	Eaton
Model	QD5
Category	Cables and connectors
Language	English