Grundfos CIM 260, Installation And Operating Instructions Manual

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4. Fault finding the product
Faults in a CIM 260 or CIM 280 cellular module can
be detected by observing the status of the two
communication LEDs. See the table below and
section
3.2 LEDs .
CIM 260 or CIM 280 fitted in a Grundfos product
DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the product,
make sure that the power supply has
been switched off and that it cannot be
accidentally switched on.
Fault (LED status) Possible cause Remedy
1. Both LEDs (LED1 and LED2)
remain off when the power
supply is connected. a) The CIM module is fitted
incorrectly in the Grundfos
product. Check that the CIM module is
fitted correctly in the Grundfos
product.
b) The CIM module is defective. Replace the CIM module.
2. The LED for internal
communication (LED2) is
flashing red. a) No internal communication
between the CIM module and
the Grundfos product. Check that the CIM module is
fitted correctly in the Grundfos
product.
3. The LED for internal
communication (LED2) is
permanently red. a) The CIM module does not
support the Grundfos product. Contact the nearest Grundfos
company.
b) CIM 280 is not configured.
The product driver is not
downloaded from the cloud
yet. When CIM 280 is
switched on, the LED2 may
turn green for 1 minute before
it turns permanently red. Run the setup process in the
cloud. Contact the nearest
Grundfos company.
4. LED1 is flashing yellow. a) The SIM card has not been
inserted. Insert the SIM card. See section
2.6 Inserting the SIM card .
b) The SIM card has not been
inserted correctly. Insert the SIM card. See section
2.6 Inserting the SIM card .
c) The PIN code of the SIM card
has not been removed or set
to 4321. Remove the PIN code, or set it to
4321 with a mobile phone. See
section
2.6 Inserting the SIM card .
d) No connection to the cellular
network. • Check the connection to the
antenna.
• Check the cellular coverage of
the area with for instance a
mobile phone.
• Experiment with the position of
the external antenna.
• In some cases, adding an
additional antenna to the
second SMA connector may
improve the signal. See fig.
3 .
5. LED1 is pulsating yellow with
single pulse, but CIM 260
cannot send or receive SMS
messages. a) CIM 260 has not been
initialised. Initialise CIM 260 with the
command INIT. See section
2.6 Inserting the SIM card in the
manual "CIM 260 SMS
commands".