Stand-By Power Alarm; Output Depends On Count Value; Counter Function; Operation Mode - Panasonic KW8M User Manual

5.3.4 Stand-by power alarm

When it detects stand-by power (current) of the measured load, pulse output (transistor output) turns on
in order to notice.
Set current (C) and stand-by time (T) to judge stand-by power.
When the measured load is satisfied the setting conditions, pulse output
(transistor output) turns on in order to notice.
You can reset the alarm by pressing <SET> with the instantaneous electric
power display.
(Working flow chart)
(kW)
0

5.3.5 Output depends on count value

Set the preset value and pulse output (transistor output) turns on the time when count value reaches
the preset value.

5.4 Counter function

5.4.1 Operation mode

Maintain output hold count HOLD
[Output]
[Counting]
[Addition] 0
(1) Output control is maintained after count-up completion and until reset. However counting is
possible despite of count-up completion.
(2) It reverts"0" after counting up full scale, but output control is maintained. However output is OFF
if count value or preset value is changed.

5.4.2 Change the Preset Value

It is possible to change the preset value even during counting. However note the following points.
◇When the pre-scale value is "1.000".（PSCL=1.000）
(1) If the preset value is changed to the value less than the count value, counting will continue until
it reaches full scale, returns to "0" and then reaches the new preset value.
(2) If the preset value is changed to "0", it will not count up at start with "0". It counts up when the
counting value comes to "0" again (after reach to full scale). However output is OFF if count
value or preset value is changed.
(3) When the count value is fixed, output is changed according to the changing of preset value as
below.
①If the preset value is changed to the value less than the count value or same as count value,
output is ON.
（Count value ≧ Preset value）
②If the preset value is changed to the value more than the count value, output is OFF.
（Count value ＜ Preset value）
◇When the pre-scale is not "1.000". （PSCL≠1.000）
Even if the preset value is changed after counting to full scale, output is not changed.
Normal working
T
Stand-by mode
Time
OFF
1 2 3
・・・
KW8M Eco-POWER METER (1A/5ACT input type)
Output turns ON
Set value(C)
(Min)
possible
n-2 n-1 n
26
<SET>
ON
n+1 n+2 n+3
n: Preset value