3.To inspect the sequence
of voltages and currents
whether did correct or
not?
PROBLEM
1.To inspect the input
Active power
signal and it jittery.
jittery display
2.To inspect the input
signal and it is stable.
Display
To inspect display
function [dsply]. It's
shows "-----"
maybe to be set to rs485
1.To inspect display
display value
function [dsply]. It's
dosen't
maybe to be set to
change
maXhd(maxmum hold)
or miNhd(minimum
hold)
2.To inspect external
control input function
[ecI_]. It's maybe to be
set to pVhld.
Relay Output Issue:
PROBLEM
The perameters
Check if the label of meter
of Relay
for detail specification.
dosen't shown
CHECKING LIST
CHECKING LIST
MW-5 Operating Manual 2012-07-19
Do not touch any of the terminals while power is being
supplied.
For 3P3W
A.Take away the voltage input wire of phase T, and then
power on to check the Active power display,
If Active power shows a "positive value", it's caused by
(A)Voltage & Current wiring of phase R are correct.
(B)Current sequence(k/l) of phase T is reverce.
If Active power shows "0", it's caused by
(A)Voltage of phase R or Current of phase T is not correct.
(B)Current sequence(k/l) of phase R is reverce.
B.Take away the voltage input wire of phase R, and then
power on to check the Active power display,
If Active power shows a "positive value", it's caused by
(A) Voltage & Current wiring of phase T are correct.
(B) Current sequence(k/l) of phase R is reverce.
If Active power shows "0", it's caused by
(A) Voltage of phase T or Current of phase R is not correct.
(B) Current sequence(k/l) of phase T is reverce.
A.If the input signal is jittery continuously, please set higher
value in [ avg](A-14) or [mVavg](A-15).
B.If the input signal is jittery uncertain period that caused by the
inductive load actions, please set higher value in
[Dfilt](A-16).
C.Please does not lay the wires of input together with
high-voltage lines or power lines. As a general rule, wire the
meter in a separate system, use an independent metal
conduit, or use shielded cable.
A.Please try to set higher value in [ avg](A-14) or
[mVavg](A-15).
B.Please try to set higher value in [Dfilt](A-16).
C.Please connects a isolation transformer as close as meter in
power lines.
Please check the [dsply](A-12) in [input group] and
change the function setting from rs485 to
A.Please check the [dsply](A-12) in [input group] and
change the function set from maXhd or miNhd to
A.Please check the [ecI_](C-01/02) in [eci group] and
change the function setting from pVhld to
B.ECI function has been energized by terminals close. Please
open the terminals.
A.Please check the product number and output(O/P:_____)
description again for confirmation the relay output is specified
or not?
B.Please send back to our sales window, or order another
meter with relay function.
REMEDY
pv.
REMEDY
pv.
pv.
29 / 36
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