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Analog
output
transmit mode
selection
transmit value
unit
transmit high
limit
transmit low limit
Year
Month
Day
Hour
Minute
Second
Please refer to table 1
1: means international standard unit, K: means 1000
times of international standard unit, M: means1000000
times of international standard unit.
Transmit output 20mA
Transmit output 4mA
Year
Month
Day
Hour
Minute
Second
Tariff Setting
Time setting
Period 1 tariff
Period 2 tariff
Period 12 tariff
Period 1 start time
Period 2 start time
Period 12 start time
Period 1 tariff means Sharp tariff, Peak tariff, flat tariff, valley tariff
Period 2 tariff means Sharp tariff, Peak tariff, flat tariff, valley tariff
Period 12 tariff means Sharp tariff, Peak tariff,
middle tariff, valley tariff
Period 1 start time
Note
Period 2 start time
Note
Period 12 start time
Note
：
Divide 24 hours a day into 96 segments, every 15 minutes as one segments. For example, the corresponding time for segment 0 is 0 o'clock,
the corresponding time for segment 10 is 2:30. Please notice that, the setting of period 1 to period 12 should be from small to big.
Note
Output Function
1. Energy pulse
EW9L provides the function of energy calculation, with 2 energy pluse output AP & RP, and RS485 interface for the transmit of energy data.
The energy pulse of optical couple relay with open collector enables the long distance transmit of active energy AP & reactive energy RP. Remote
PC terminal, PLC, DI On-Off output and collector module are applied to collect the pulse of energy meter to enable the energy cumulation
calculation. Besides, this output mode is also the energy accuracy check way (National metrology regulations: Standard meter pulse tolerance
comparison method)
(1). Electrical characteristic: the output of optical couple relay with open collector , V≤ 48V, Iz≤ 50mA
(2). Pulse constant: 9000imp/kwh. It means the impulse output No. is 9000 when the energy meter counts up to 1KWH.
The piont should be emphasized is that the above 1kwh is for the 2nd coil energy. Supposed that PT and CT is connected , the primary coil energy
that 9000 pulse refer to is equal to 1kwhX voltage transform PT X current transform CT.
2. Remote measure and remote control function: 4 loops S1-S4 are used to remote measure electric ON/OFF status. DO1 & DO2 function can be
used to remote control electric devices. When using Do function, alarm mode should be setted as 0, otherwise DO1 and DO2 will be as AL1, AL2
output. DO1 DO2 function control value is writen via RS485 interface.
3. Communication function ( please refer to the communication protocol)
4. Transform output( please refer to table 1)
5. Alarm function (please refer to table 1)
