IQ DP-4000
SECTION 3- OPERATOR PAN EL
POWER FLOW-
LINE
CURRENT TRANSFORMER
LOAD
Figure 3.4 Induction Motor Load
I
LINE
I
LINE
I
BREAKER 8
)
BREAKER A
)
BREAKER C
X
i
MOTOR LOADS
MOTOR LOADS
Figure 3.5 Power Distribution
Note: Refer to section 5. 1 1 VAR/Power Factor Sign
Convention Setpoint for more information about
+
and - values.
3. 1. 3.3 Units LEOs: Auto Range Units for Monitoring
The units for monitoring are Units, Kilo-Units, and
Mega-Units. Figure 3.1 shows the location of these
LEOs to the right of the display window. These units are
fixed, based on your selection for PT and CT ratios so
that the display is consistent with the PT and CT sizes.
They let you know the measurement unit for the
displayed function.
3. 1 . 3.4 Alarm LED's
The Alarm LEOs, (Alarm 1 , Alarm 2} when continuously
lit, indicate that an alarm condition exists. If there is an
alarm condition when you press the Alarm Data button,
the
corresponding LED blinks and the display window
shows a digit, from 1 to 8. This digit represents the
specific type of alarm condition that is occurring for the
selected alarm . The alarm cause codes are listed at the
bottom of the faceplate for easy reference. Table 3.A
describes the alarm codes by number.
TD1 7548A
Alarm Cause
Operator Panel
Description
Code
Designation
1
External
Remote
device
initiates
alarm
2
Overvoltage
3
Undervoltage
4
Phase Unbalance
An alarm
5
Voltage Phase Loss
condition
6
Current Phase Loss
occurs
7
Phase Reversal
8
Malfunction
I nternal
Table 3.A Alarm Codes
11
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