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Table 10 . Function codes (continued)
Parameter
Unit of
Measure
Security Level
Default Value
Key Entry Limit
To Read
To Write
To Reset
Low
High
•Sets a VR1 wait timer for use with the Multi-phase modes that require a gang operation
(meaning that all tap changers must be on the same position). For ganged tap-changer
operation, the tapping operations of the connected regulators must be synchronized if more
than one tap-changer type is used. If, for example, the fast Quik-drive is ganged with a
slow spring-drive, the control will not be able to keep the voltage regulators on the
same position unless the Quik-drive is slowed down to switch at the same time as the
spring-drive.
204 VR2 Tap Wait
Timer
XXXXX mSec
MilliSec
View
Modify
NA
0
0
10000
•See explanation for FC 204 VR1 Tap Wait Timer.
204 VR3 Tap Wait
Timer
XXXXX mSec
MilliSec
View
Modify
NA
0
0
10000
•See explanation for FC 204 VR1 Tap Wait Timer.
205 Multi-phase
Retry Count
XX
---
View
Modify
NA
3
1
10
•A count of the number of attempts to resend a tap-change command by the control when a
tap-change operation was not sensed in certain multi-phase operating modes.
206 Multi-phase
Retry Delay
XX Seconds
Seconds
View
Modify
NA
5
5
60
•The delay between attempts to resend a tap-change command by the control when a tap-change
operation was not sensed in certain multi-phase operating modes.
207 Multi-phase
Total Deviation
XX
---
View
Modify
NA
32
0
32
•The maximum deviation in tap position between regulators operating in the Max Deviation
multi-phase mode.
208 Timer To Max
Deviation Mode
XXX Hours
Hours
View
Modify
NA
168
0
168
•Defines the amount of time that the connected regulators will remain in the Max Deviation
Alternate Mode before reverting to the standard Max Deviation operation.
209 Timer To Alt
Mode
XXXX Seconds
Seconds
View
Modify
NA
60
10
3600
•Defines the amount of time that the connected regulators are permitted to remain at the
configured Max Deviation value before the control will revert to the Max Deviation
Alternate mode of operation.
210 Max Deviation
Alt Mode
Ganged Mode
---
View
Modify
NA
Off
NA
NA
•The configured fall back mode of operation for a group of connected regulators if they
remain at the user configured Max Deviation value for the time defined at FC 209. The
options are: Off; Tap To Neutral; Ganged Mode; Historical Tap Pos.
•See
Section 6: Control Features: Multi-phase voltage regulation
the options.
81
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS
MN225003EN April 2018
CL-7 Voltage Regulator Control