dosatron SD25AL5 Manuel D'utilisation page 42

CHARACTERISTICS OF THE TERMINAL BOARD INCOMING AND OUTGOING POINTS
NC / NO
Outgoing Point TERMINALS:
Relay outgoing points which are activated simultaneously on selection of one of the alarms or events
programmed on the Smart Dosing device device (ref. "Remote alarms activation")
The circuits connected to the contacts of the relays must be Very Low Safety Voltage
(VLSV). It is not possible to connect the type 230 V A.C. voltage to them.
POWER SUPPLY/GND
Incoming point for the main power supply supplied by the Smart Dosing de-
vice sector adaptor. Only this Emerson (or Artesyn) brand adaptor, reference
DA12-120EU-M, is approved to operate with Smart Dosing. The Smart Do-
sing device device is also designed to operate with an external, battery-type
power supply with the following characteristics:
Power supply voltage: 12-24 V d.C. The battery must be fitted with an
adequate protection circuit that can cut off a current of 8A in less than 120
seconds. For example, an inline fuse holder may be used fitted with a
cartridge type fuse holder of type Mersen 3.15A type 5ST. Whether it be the
main power supply supplied or external power supply of the battery type, the
power supply is connected by cables to the terminals below
VBAT/GND
TERMINALS
The Smart Dosing device device is fitted with a 9V alkaline backup battery.
Thanks to the battery, it can operate during potential micro-cutouts in the
main power supply. Depending on the frequency of this situation, this battery
will need to be replaced; an alarm warns of the low level of the battery. (see
user manual p.26). When replacing it, it is recommended that the same
battery reference ANSMANN 9V D.C-50mAh model 6LR61 is used. It is
connected to the terminals opposite
CPUL / GND
TERMINALS
Entry point for the pre-installed flexible blade switch sensor on the Smart
Dosing device.
The functionality is essential: it enables the motor cycles to be counted
WPUL / GND
TERMINALS
Entry point for connecting the pre-installed water counter to the Smart
Dosing device
GND / TXD+/TXD-/RXD+/RXD-/
Outgoing point for an RS485 connection, cabling drawing below
GND TXD+
Mass Transmission -
(main power supply)
TERMINALS
(9V backup battery)
TERMINALS
TXD-
Transmission +
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Terminal
+ 12V
+ 24Vdc
Terminal
+9 Vdc
Red cable
The connection direction is
the following
Terminal
CPUL
Red cable
The connection direction is
the following
Terminal
WPUL
White cable Brown cable
RXD+
Reception +
NC NO
Terminal
ALIM GND
0
Black and
Black
white-lined
cable
cable
Terminal
Vbat GND
0
Black cable
Terminal
GND
Black cable
Terminal
GND
RXD-
Reception -