GE EPM 3000P Instruction Manual page 20

Chapter 4 EPM3000P Overview
005
MAX MIN
MAX/MIN PRINT
VOLTS AMPS
LIMITS PROG
Step 3:
a. Press PHASE/NEXT each time the appropriate
password number appears.
4.3 A LM1/LM2 S
CCESSING THE
The DMVA100 is designed with two manual set limits. The set limits monitor the instantaneous readings, warning the
user of abnormal conditions. Each limit can detect readings above or below the set level. SET LIMITS: the point when
the relay changes position, if the DMVA100 is equipped with the Relay Option (Suffix -NL).
If a limit is exceeded, the annunciator LM1 and/or LM2 indicator glow and the display flashes, alternating between the
instantaneous reading.
To VIEW THE SETUP OF THE LM1/LM2 SET LIMITS OF THE FUNCTIONS, follow these steps:
AC VOLTS
I25.0
A B C A B C
I I I I I I
N N N B C A
AC AMPS
A B C N
MAX MIN LM1 LM2
MAX/MIN PRINT PHASE
VOLTS AMPS
LIMITS PROG NEXT
Step 1:
a. To access the set limit, press
MAX/MIN/ LIMITS:
THREE times for LM1
FOUR times for LM2
4.4 V P
OLTAGE HASE
In a three phase power distribution system, the normal phase shift between each line is 120°. The EPM3000P
detects an abnormality and displays a PH message every six seconds.
VOLTAGE PHASE REVERSAL:
If there is an incorrect connection, such as mistaking line A for line B, a PH message appears. The correct sequence
is a-b-c.
VOLTAGE PHASE IMBALANCE LIMIT:
Can be detected using the phase imbalance limit in the Programming Mode. The phase imbalance is expressed in a
percentage with 0% indicating a 120° phase shift between each line. A PH message appears if the limit is exceeded.
AC VOLTS
A B C A B C
I I I I I I
N N N B C A
AC AMPS
A B C N
LM2
LM1
PHASE
NEXT
L
ET IMITS FROM
l i
MAX MIN
MAX/MIN PRINT
VOLTS
LIMITS PROG
Step 2:
a. Press PHASE/NEXT when the
LM1 annunciator glows.
The annunciators that glow are
out-of-limits in LM1.
R I
EVERSAL AND MBALANCE FROM
GE Industrial Systems
MAX MIN
MAX/MIN PRINT
VOLTS
LIMITS PROG
Step 4:
Upon entering the correct password, the display blanks
and a checkmark appears, confirming successful reset.
O M
PERATING ODE
AC VOLTS
A B C A B C
I I I I I I
N N N B C A
AC AMPS
A B C N
LM1 LM2
PHASE
AMPS
NEXT
Step 3:
a. Press PHASE/NEXT when the
LM2 annunciator glows.
The annunciators that glow are
out-of-limits in LM2.
O M
PERATING ODE
AC VOLTS
A B C A B C
I I I
I I I
N N N B C A
AC AMPS
A B C N
LM1 LM2
PHASE
AMPS
NEXT
AC VOLTS
A B C A B C
I I I I I I
N N N B C A
AC AMPS
l i
A B C N
MAX MIN LM1 LM2
MAX/MIN PRINT PHASE
VOLTS AMPS
LIMITS PROG NEXT
15