ST-LC OPERATION MANUAL(EN) 2011-04-27
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Jittery Display 1.
To inspect the input signal is
jittery or not?
A.
If the input signal is jittery continuously, please set higher value in
[
avg
]
(A1-12 or A2-12)
or
[
mVavg
]
(A1-13 or A2-13)
B.
If the input signal is jittery uncertain period that caused by the
inductive load actions, please set higher value in
[
Dfilt
]
(A1-14 or
A2-14)
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.
2.
To inspect the input signal is
stable.
A.
If the input signal is jittery continuously, please set higher value in
[
avg
]
(A1-12 or A2-12)
or
[
mVavg
]
(A1-13 or A2-13)
B.
If the input signal is jittery uncertain period that caused by the
inductive load actions, please set higher value in
[
Dfilt
]
(A1-14 or
A2-14)
C.
Please connects an isolation transformer as close as meter in
power lines.
Display
shows
”-----“
To inspect display function
[
dsply
]
. It's maybe to be set
to
rs485
Please check the
[
dsply
]
(A1-10 or A2-10)
in
[
input group
]
and
change the function setting from
rs485
to
pv
.
Display value
doesn’t change
To inspect display function
[
dsply
]
. It's maybe to be set
to
maXhd
(maximum hold) or
miNhd
(minimum hold), and
the M.H LED is brighten.
Please check the
[
dsply
]
(A1-10 or A2-10)
in
[
input group
]
and
change the function set from
maXhd
or
miNhd
to
pv
.
Relay Output Issue:
PROBLEM
CHECKING LIST
REMEDY
The parameters
of Relay doesn’t
shown
Check if the label of meter for detail
specification.
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.
The relay energized, but square
red LED doesn’t bright
1.
Check the energized mode
Please check the
[
rYmd
]
(B-3/7)
in the
[
relay group
]
2.
Check the delay time and delay
band in the start delay function.
Please check whether the [
rYsb
] (B-1) did is too wide and
[
rYsd
]
(B-2)
is too long in
[
relay group
]
or not?
3.
Check the energized delay time
Please check whether did the
[
rYrd
]
(B-5/9)
is too long in
[
relay group
]
or not?
The relay energized, but square
red LED dose bright
1.
Check the wiring of relay output
According to the label of meter, please check again the
connection wire of relay. Be careful to check the number of
relay is matching the setting.
Relay cans not
action.
2.
Check the voltage of supply power
Analogue Output Issue:
PROBLEM
CHECKING LIST
REMEDY
1.
To inspect the output signal type
(V/A/mA..) or range of meter
whether did match with signal in
the field or not?
A.
Please check the product number and output(O/P:_____)
description again for confirmation the analogue output is
specified or not? If it was not specified, please send back to
our sales window, or order another product with relay function.
B.
Please confirm the output type is correct and check the
range in
[
AOtyp
]
(D-1)
of
[
Ao group
]
Incorrect ion
analogue
output value or
out of accuracy
2.
Check the Analogue output high
and low setting.
A.
Please check the
[
AOls
]
(D-2)
and
[
AOhs
]
(D-3)
in
[
Ao
group
]
.
Jittery
Analogue output is according to
the display
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