Section 7: Advanced control features
Metering-PLUS feature
The Metering-PLUS feature was designed to allow
immediate access to basic control information. On the
control keypad, four keys display an asterisk (*), identifying
them as Metering-PLUS* keys. These keys access
information on compensated voltage, load voltage, load
current, and tap position.
Compensated voltage
When the *Comp Voltage key is pressed, the LCD will
display the following information.
The first line displays a live representation of the
compensated voltage. The compensated voltage is available
at FC 8.
The second line is used to display the in-band compensated
voltage range. The voltage range is dependent on four
separate parameters: operating mode, metering power
direction, set voltage, and bandwidth in the corresponding
metering power direction.
The third line specifies the range of configurable function
codes that are used to compute the in-band compensated
voltage range and the corresponding time delay.
The Out-of-Band High and Out-of-Band Low LEDs are used
to indicate an out-of-band condition.
EXAMPLE 1:
•
Compensated Voltage = 125.0 V
•
Fwd. Set Voltage = 120.0 V
•
Fwd. Bandwidth = 2.0 V
•
Control experiencing: Forward Power Flow
Comp Voltage 125.0
Band 119.0-121.0
Using Func 1-5
1
2
3
4
*
*
*
*
Comp
Voltage
Load
Voltage
Load
Current
Tap
Position
Voltage Limiter High
Out-Of-Band High
Out-Of-Band Low
Tapping Blocked
Reverse Power
Voltage Reduction
Voltage Limiter Low
Figure 7-1. Operation analysis using Metering-PLUS feature.
89
CL-6 SERIES CONTROL INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225016EN January 2016