Table 10 . Function codes (continued)
Parameter
Unit of
Measure
Security Level
Default Value
Key Entry Limit
To Read
To Write
To Reset
Low
High
029 Forward Source
Voltage Low
XXX.X Volts
MM-DD-YYYY HH:MM:SS
Volts
View
NA
Operate
Reset*
NA
NA
•This is the minimum source voltage of the regulator since last reset, as a demand value,
according to the demand time interval at FC 46.
•Date and time of the occurrence of the lowest source voltage is displayed.
•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.
029 Forward Source
Voltage Present
XXX.X Volts
Volts
View
NA
NA
NA
NA
NA
•This is the present value of the source voltage, as a demand value, according to the
demand time interval at FC 46.
•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.
030 Reverse Load
Voltage High
XXX.X Volts
MM-DD-YYYY HH:MM:SS
Volts
View
NA
Operate
Reset*
NA
NA
•This is the maximum value of the secondary output voltage of the regulator during reverse power
flow since last reset, as a demand value, according to the demand time interval at FC 46.
•Date and time of the occurrence of the highest load voltage is displayed.
•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.
030 Reverse Load
Voltage Low
XXX.X Volts
MM-DD-YYYY HH:MM:SS
Volts
View
NA
Operate
Reset*
NA
NA
•This is the minimum value of the secondary output voltage of the regulator during reverse
power flow since last reset, as a demand value, according to the demand time interval at
FC 46.
•Date and time of the occurrence of the lowest load voltage is displayed.
•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.
030 Reverse Load
Voltage Present
XXX.X Volts
Volts
View
NA
NA
NA
NA
NA
•This is the present value of the secondary output voltage of the regulator during reverse
power flow, as a demand value, according to the demand time interval at FC 46.
•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.
55
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS
MN225003EN April 2018
CL-7 Voltage Regulator Control