Grundfos CIM 260 Montage- Und Betriebsanleitung Seite 11

CIM 260 or 280 fitted in the CIU unit
Fault (LED status)
1. Both LEDs (LED1 and LED2)
remain off when the power
supply is connected.
2. The LED for internal
communication (LED2) is
flashing red.
3. The LED for internal
communication (LED2) is
permanently red.
4. LED1 is flashing yellow.
5. LED1 is pulsating yellow with
single pulse, but the CIM 260
cannot send or receive SMS
messages.
Possible cause
a) The CIU unit is defective.
b) The CIM module is defective.
c) The CIM interface or the CIM
connector in the product is
defective.
a) No internal communication
between the CIM 260 and the
Grundfos product.
a) The CIM 260 does not support
the Grundfos product.
b) The CIM 280 is not
configured. The product driver
is not downloaded from
Grundfos Remote
Management (GRM) or
Grundfos iSolution Cloud
(GiC) yet. When the CIM 280
is switched on, the LED2 may
turn green for one minute
before it turns permanently
red.
a) The SIM card has not been
inserted.
b) The SIM card has not been
inserted correctly.
c) The PIN code of the SIM card
has not been removed or set
to 4321.
d) No connection to the cellular
network.
a) The CIM 260 has not been
initialised.
Remedy
Replace the CIU unit.
Replace the CIM module.
Contact Grundfos.
• Check the cable connection
between the Grundfos product
and the CIM 260.
• Check that the individual
conductors have been fitted
correctly.
• Check the power supply to the
Grundfos product.
Contact the nearest Grundfos
company.
Run the CIM setup process in
GRM or GiC. Contact the nearest
Grundfos company.
Insert the SIM card. See section
2.6 Inserting the SIM card.
Insert the SIM card. See section
2.6 Inserting the SIM card.
Remove the PIN code, or set it to
4321 with a mobile phone. See
section 2.6 Inserting the SIM card.
• 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.
Initialise the CIM 260 with the
command INIT. See section
2.6 Inserting the SIM card in the
manual "CIM 260 SMS
commands".
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