Control Systems
130
IV
IV
Power distribution system
1. Electricity meter interface module
5) Specifications on electricity meter
t
Current flow on output :
Current-sinking
t
Pulse rate :
1PXFSNFUFS_8IQVMTF OPEFDJNBMQVMTFSBUFBMMPXFE
(BTNFUFS_N
3
/pulse
8BUFSNFUFS_MJUFSQVMTF OPEFDJNBMQVMTFSBUFBMMPXFE
t
Pulse width :
_NTXJUIUPMFSBODF OPEFDJNBMQVMTFSBUFBMMPXFE
t
Time interval between pulses :
min. 3ms
t
Allowable current sinking :
min. 15mA
t
Withstanding voltage :
min. 15V DC
t
Interface circuitry :
Electronic isolation circuitry recommended, no voltage output
MIM-B16N
;
Note
Interface circuitry of an electricity meter has to withstand min. 15mA and min. 15V DC, both of which are applied by MIM-B16N.
Even though MIM-B16N interface circuitry is realized with electric isolation components, it’s highly recommended that interface
circuitry of an electricity meter be designed with isolation to ensure robustness from contact spike or electric interference
during wiring.
1VMTFHFOFSBUJPOGSPN
electricity meter
Current flow(max. 15mA)
Current flow
Current source
Current sink
20~1000ms
Waveform of CH1~8
Over 4ms
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