Fimer R25 Series, User Manual

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9
Received field strength:
Parameter 223 "
GSM signal strength " helps you to verify the presence of the GSM signal.
Following initialisation
Parameter number 223: GSM signal strength
Menu Communication
Short description GSMS
Default setting Measured value
The value of this parameter should be > 12 in order to guarantee good reception and a good
connection.
Note
The signal strength is measured again and saved to parameter 223 each time the modem is
initialised.
When searching for the optimum position for the aerial, always switch the inverter off and
back on again and wait for the modem to be initialised.
Following initial installation, switch the unit off and on again. Initialisation of the modem
commences after approx. 80 seconds, but is only completed after approx. 2 minutes.
If, without there being a call, the message number 21007 appears on the inverter display
next to parameter 162, the modem is either not connected to the inverter or it can not be
initialised.
⇒
Check the modem, its power supply and the cable.
The modem commences fresh initialisation if the connection has been disconnected for 90
seconds. Please wait 2 minutes before starting to dial again.
Recommendation: To check that the equipment is properly installed, we recommend you
make a test call (using a mobile phone) while on site to install and start up the system. If the
inverter answers the call, you can hear 'whistling tones' and the value of parameter 162 on
the inverter display increments from 21007 to 21047, the modem has been connected and
the parameters set correctly.