Datasheet
4 VD.KM.G2.02 © Danfoss 09/2007 DH-SMT/DK
Module
WAH pulse interface
Description The WAH pulse interface has 4 optically isolated
digital inputs. The typical use of these inputs is
to convert impulse signals to a value that can be
stored in the WebAccess unit.
The data type can be congured to liters, kWh
etc.
Operation
1. TP / FT-10 LON connection:
Free topology / twisted pair
2. Power supply:
8-24 V a.c. or 12-30 V d.c.
3. TP / FT-10 LON connection:
Free topology / twisted pair
4. Power (power connection)
5. Service condition
6. Service switch (activates neuron service pin)
7. Digital input, 4 channels + input power supply
Technical data
Storage temperature -40 °C - 70 °C
Ambient temperature 0 - 50 °C
Power supply 8-24 V a.c. /12-30 V d.c.
Power consumption 15 mA @ 24 V d.c.
Grade of enclosure IP00
Mounting DIN rail
LON typology TP / FT-10
Input power supply Min. 15 V d.c., max. 27 V d.c.
Consumption max. 60 mA @ 27 V d.c., all inputs
short-circuited
Number of inputs 4
Input type Digital
Input ON consumption >5 mA @ RI 800 ohm @ V = 15 V d.c.
> 10 mA @ RI 800 ohm @ V = 27 V d.c.
Input OFF consumption < 1 mA @ RI 1 Mohm @ V = 27 V d.c.
Short-circuit current Max. 15 mA /input
EMC immunity EN 50082-2
EMC emission EN 50081-1
Data sheet WebAccess and its modules