Honeywell Home EW500 Serie Instrucciones De Instalación Y Configuración página 6

In case of calculator equipped with power supply: the power adapter should
be connected to the ~230 V power supply and to the terminals marked with
numbers 27 and 28 (Fig. 20); for the 24 V power adapter the ~24 V power
should be supplied to terminals marked with numbers 97, 98 (Fig. 21).
The power adapter has two sets of terminals marked with numbers 95 and
96, allowing for the supply of power to interchangeable communication
modules (terminals on modules marked with numbers 97 and 98).
The electrical connection of power adapter should be performed by a
properly licensed person.
4.4 Connecting additional input signals
Each version of the terminal block has 4 additional inputs.
Each of the inputs marked I1 (terminal no. 56 and 50), I2 (terminal no. 55 and
50), I3 (terminal no. 54 and 50), I4 (terminal no. 53 and 50) can operate as
an impulse input, the I3 input can additionally serve as an alarm input, and
the I4 input can be used for digital communication with the flow transducer.
Each input has two terminals, marked as follows:
• signal input (terminal no. 56, 55, 54, 53)
• reference input for additional input, each input has a separate terminal
for reference signal connection (terminal no. 50)
Fig. 22 shows the signal connection method for a sample additional input, for
a device with output type: open collector (1), normally open contact (2).
4.5 Installation of additional modules
The calculator allows you to install up to two independent additional modules:
• M-Bus
• RS232
• RS485
• impulse outputs (2x OB, OC or OD class output)
• impulse inputs and outputs (2x OB, OC or OD class output and 2x IB or
IC class input)
• analogue outputs (2x 4-20 mA or 0-10 V output)
• LonWorks
• RF module for IMR telemetry systems (AIUT)
• Wireless M-Bus RF module
Fig. 23 shows the place and method of additional module installation.
Modules can be installed in any connector except for RF modules, which can
only be fitted in the connector marked with number 1 (Fig. 12).
4.6 Installation of the M-Bus module (module code: 001)
M-Bus module is powered from the M-Bus network and galvanically isolated
from the calculator using optical isolation. The module supports primary,
secondary and extended secondary addressing. The M-Bus signals are
connected through the inputs marked with numbers 24,25 (Fig. 24).
GB
Fig. 12
Fig. 13
Fig. 14
Fig. 15
BROWN
WHITE
Fig. 17
Fig. 19
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BROWN
WHITE
BLUE
YELLOW
Fig. 16
RED
YELLOW
BLUE
Fig. 18
MU1H-0511GE23 R0520