CONTROL PANEL INSTALLATION
33
4) after parameter values are set according to the list described in point 2), store the
settings in the “profile 0” (with command at&w0©).
5) At the end, you may check whether all parameters are stored correctly – after the
command atz©, and then at&v©, settings in ACTIVE PROFILE should be the
same as in STORED PROFILE 0 (note: often STORED PROFILE set contains
less number of parameters than ACTIVE PROFILE set, this is normal).
NOTES:
• Modem register S0 settings are performed with the command ats0=0 (modem
shows slightly different notation, S00:000, in Figure 26).
• When the control panel restarts the modem, it generates the command ATZ,
which sets parameters in accordance with the values stored in the “profile 0”.
Therefore, it is not important what are the current values of parameters mentioned
in point 2 (“ACTIVE PROFILE”), but it is important that they be correctly set in the
“profile 0”.
Connection of power supply
The control panel is permanently connected to a main power source. Therefore,
familiarise with the electric system in the object before system wiring. For powering
the control panel choose the circuit, which always is live. The power supply circuit
should be protected with a proper fuse.
CAUTION!
Disconnect voltage in the power supply circuit to which the control panel is to be
connected, before connecting the control panel to this circuit.
Description of electric connections.
1. Connect 220VAC to the terminal block located in the control panel casing under
the transformer shield. Connect “phase” wire to the terminal marked L and “zero”
wire to the terminal N, connect ground wire to the terminal marked with the
ground symbol (the control panel main board need not be grounded).
2. Connect AC voltage wires from secondary transformer winding to terminals
marked with “AC” symbol at the control panel board.
Control panel power supply unit operates with input voltage of 20...24V AC. The
control panel is provided with the up-to-date pulse power supply unit, highly efficient
and reliable, but, for its correct operation, it is necessary to ensure that input voltage,
at maximum transformer load by the control panel, do not fall below 18V (AC).
Control panel power supply starting procedure:
1. Connect the backup power supply wires to proper battery terminals (red to
battery plus, black to battery minus). The control panel will not start after
connecting battery alone (without mains power supply), but it will operate in
case of 220VAC failure when it was started earlier.
NOTE:
When control panel is working and the battery supply voltage drops to
approximately 11V, the control panel reports battery failure. After the voltage
drops to approximately 9.5V, the control panel disconnects the battery (the
system is stopped).
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