Innova Srl
Page 23
N420741A_manuale-HRC+2022 - rev.01 _EN
.docx
DISPLAY CONNECTION TO CONTROL MULTIPLE UNITS
The EQA649 / EQB649 or ERA649 /
ERB649 panel provides for the control of
several units; it is possible to connect
up to 30 units which will be managed by
a single remote panel;
They must be connected in series with
an in and out connection on the boards
of the individual units;
The network is an RS485 network; Use a
2-wire shielded cable with a maximum
length of 150 m;
- Carry out a layout in order to minimize
the length of the leads;
- terminate the line with the supplied
120
Ω
resistor;
- do not make "star" connections;
- the connection with the RS485 cable is
polarized,
REMOTE ON OFF CONNECTION
The EQA649 / EQB649 or ERA649 /
ERB649 remote panel provides an ON
OFF command with which the unit can
be connected through a clean contact to
a device for remote switching on / off
the unit such as a switch or a timer
The logic provides:
Contact closed: Unit OFF
Contact open: Unit ON
