MW-5 Operating Manual 2012-07-19
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■ FUNCTION DEFINE
■ Character Symbol ■ Display Functions
A b C d E F G H i J K L M
a b c d e f g h i j k l m
n o P q r S t U v W X y Z
n o p q r s t u v w x y z
1 2 3 4 5 6 7 8 9 0 / .
1 2 3 4 5 6 7 8 9 0 / .
Display Functions
Programmable: p v / miNhd / maXhd /
rs485
●pv (PV): Active power
●miNhd / maXhd: Minimum/Maximum Hold
When the [dsply]function in [input group]set
to be maXhd(Max. Hold) or miNhd(Mini. Hold), that
the meter will still display the values of PV in
maximum (or minimum) and the relative square
orange LED will be bright during power on, until
manual reset by front key in [user level],
Up/Down Key function has been done or ECI
terminal had been closed. The meter will update
immediately new maximum(minimum) values after
ECI is to be opened, or press Up/Down Key again.
The Reset functions will be described in ECI
functions.
Please paste the sticker M.H
on the right side of
orange square LED to identify the status of display.
Max. ( Mini.) Hold & Reset
Reset the Max
(Mini) Hold by
ECI or F. Key
O
N
Level
Trigger
Maximum Hold
Present
Value
aXh
[
dsply]
rst
[
ecI_]
●rs485(RS485 remote display)
When the [dsply]function set to be rs485, the
LED display no longer appear the input signal on
the meter then the down screen will show the data
from RS485 command. The data(number) will be
same as PV which it will compare with set-point,
analogue output and ECI functions so that is to
control analogue output, relay energized and so
on. At mean time, the energy will be accumulated
by the data in down screen.
Active power Max / Mini recording
In order to review & trace the drifting PV, the
meters will keep the values of maximum and
minimum in [ max]and [ min]of [user level]
during power on.
Active power (PV) Hold
When the [ ecI_](External Control input) set to be
pVhld(PV Hold) function in [eci group], that
display will be hold & kept, and the relative green
LED will be bright, when the ECI has been closed
or Up/Down Key function has been done, until it is
to be opened or press Up/Down Key again.
Please paste the sticker PV.H
ECI on the right side
of green square LED of ECI to identify the status of
display.
■ Input Functions
500V & 50A(with YMWH-CT10A module) input
directly
●Voltage input
It can be input directly, if the measuring voltage is
under 500V. Otherwise, please connect a PT
between the measuring voltage and meter.
●Current input
The current input can be specified up to 10A or
50A. It can be input directly, if the measuring
current is under 10A. Otherwise, please connect a
CT between the measuring current and meter.
For the 50A input, we offer YMWH-CT10A
modules will compact size & high accuracy.
Input Range Function
The meters had been set the input range and
calibration as per order code (ex. 0~5A or 0~1A)
in factory. The display of active power is
calculated by the input current, voltage and the
setting of PT and CT in [input group]. Please
refer to the description as below,
●Voltage input
The voltage input is 0 ~ 500Vℓℓ max. User can
connect directly to the meter if the measured
voltage is under 500Vℓℓ. In the case of PT installed,
user just set the primary and secondary voltage of
PT. The meter will calculate and display the active
power.
►The setting for voltage
Primary Voltage unit of PT: v (V) / k v (kV)
Primary Voltage of PT: 50.0V~999.99KV
Secondary Voltage of PT: 50.0~500.0V
●Current input
The current input is 0 ~ 1/ ~ 5/ ~10/ ~ 50A. The
input range will be fixed in factory. If user specifies
the input for 50A input, please connect the meter
with the current transformer module
(YMWH-CT10A) that we offer with meter. Please
find the modules in box for 1P2W:1pc, 3P3W:2pcs
or 3P4W:3pcs.
►The setting for current
Primary Current of CT: 1~9999.9A
Secondary Current of CT:1.000~9.999A
●Frequency: 50/60 Hz±3 Hz
