Schweitzer Engineering Laboratories SEL-311C - Displaying Metering Values Example; Table 7.12 Settings for Displaying Metering Values Example

7.46
SEL-311C Relay Instruction Manual Date Code 20060320
Inputs, Outputs, Timers, and Other Control Logic
Rotating Default Display (Only on Models With LCD)
To program a display point to display one of the metering quantities above,
first enter the two-character sequence :: (double colon) followed by the name
of the desired metering quantity (e.g., IA, VA, MW3, etc.).
If the display point setting does not match the format correctly, the relay will
display the setting text string as it was actually entered, without substituting
the metering value.
Displaying Metering
Values Example
This example demonstrates use of the rotating display to show metering
quantities automatically on the rotating default display. This example will set
the MW3, MVAR3, PF3, and FREQ to display in the rotating default display.
Set the following:
Setting DPn = 0 and using the DPn_0 in the text settings allows the setting to
permanently rotate in the display. The DPn logic equation can be set to control
the text display—turning it on and off under certain conditions. With the relay
set as shown above, the LCD will show the following:
then,
Displaying Breaker
Monitor Output
Information on the
Rotating Default
Display
Display points can be programmed to display breaker monitor output
information automatically, making this information available without using
pushbuttons. The values shown in Tab le 7 .13 can be set to automatically
display on the rotating LCD screen.
MVRHBO M V A R h B O = x x . x x x B megavar-hours out
MVRHCI M V A R h C I = x x . x x x C megavar-hours in
MVRHCO M V A R h C O = x x . x x x C megavar-hours out
MVRH3I M V A R h 3 I = x x . x x x Three-phase megavar-hours in
MVRH3O M V A R h 3 O = x x . x x x Three-phase megavar-hours out
Table 7.11 Mnemonic Settings for Metering on the Rotating Default Display (Sheet 3 of 3)
Mnemonic Display Description
Table 7.12 Settings for Displaying Metering Values Example
SET T SET L
DP1_0 = ::MW3 DP1 = 0
DP2_0 = ::MVAR3 DP2 = 0
DP3_0 = ::PF3 DP3 = 0
DP4_0 = ::FREQ DP4 = 0
MW 3P= XXXX.X
MVAR 3P= XXXX.X
PF 3P=XX.XX XXXX.X
FRQ=XX.X