Webdyn WebdynSunPM - 2.4.7.3 Relay Output

37
USER MANUAL – WebdynSunPM
Version 2.05
préliminaire
In S0 (pulse) mode:
The WebdynSunPM concentrator manages meters that have class A (24 V) and B (5 V) pulse
outputs as per the IEC 62053-31-1998 standard.
The concentrator runs in “Sink” type mode, meaning that voltage is applied to e meter’s S0+
terminal using an (internal) pull-up resistor and a 0V voltage is applied to the meter’s S0-
connection.
S0 pulse inputs
Class A (24V)
Current pulses
Class B (5V)
Current pulses
“LOW” Switching threshold disabled
< 8 mA
< 1 mA
“HIGH” Switching threshold enabled
> 15 mA
> 2.5 mA
¨Power supply voltage
Internal 24 V
Internal 5 V
Pulse counters
> 20ms
> 20ms
Meters with class A pulse outputs should be used for long distance transmissions. Meters with
class B pulse outputs can only be used for short distances and make it possible to have reduced
power consumption.
If the concentrator does not have a 24V power supply, there is a risk class A pulses
will not work. The voltage for class A will be same as the power supply block’s
connected to the concentrator.
2.4.7.3 Relay output
The WebdynSunPM concentrator has a potential-free relay output.
S0 input wiring
S0+ S0-
5…24VDC