11.3 Inputting a Pulse Signal
170
This section describes how to input a pulse signal from an external
source.
After configuring scaling (coefficient), sub-
unit, and unit (five byte
characters) settings, you can convert an input pulse signal. When
recording and measurement are started, pulses are measured, and
pulse values are saved for each save time interval. After recording
and measurement, the unit consumption can be calculated based
on the pulse input values and active energy.
No-voltage contact input
Counted when terminals change from shorted to open.
Voltage input
Counted when the voltage level changes to high.
11.3 Inputting a Pulse Signal
To avoid electrical hazards and damage to the instrument, do
not apply voltage exceeding the rated maximum to the pulse
input and output terminals (45 V DC).
Signal Input Method
Input voltage range
HIGH level: 2 V to 45 V
LOW level: 0 V to 0.5 V
Maximum rated
voltage between
terminals
45 V
Maximum rated
voltage to earth
Not isolated
(GND common with instrument)
Measurement ragne
0 to 9999 (defined as maximum number of
pulses during the
save interval time)
Pulse input
Frequency
HIGH
2 V to 45 V
LOW
0 V to 0.5 V
Low interval
High interval
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