Grundfos CIU 501 User Manual

14.2 CIM/CIU 260
You can detect faults in CIU 260 by observing the status of the two communication LEDs.
Related information
3.3 CIM 260 3G/4G cellular Modbus
14.2.1 LED status
CIU 260 connected to an E-pump
Fault (LED status) Possible cause Remedy
Both LED1 and LED2 remain off when the power
supply is connected.
CIU 260 is defective. Replace CIU 260.
The LED2 for internal communication is flashing red.
No internal communication between CIU 260 and
the E-pump.
• Check the cable connection between the E-pump
and CIU 260.
• Check that the individual conductors have been
fitted correctly.
• Check the power supply to the E-pump.
LED2 for internal communication is permanently red.
CIU 260 does not support the connected version of
the E-pump.
Contact the nearest Grundfos company.
LED1 for cellular communication is flashing yellow.
The SIM card has not been inserted. Insert the SIM card.
The SIM card has not been inserted correctly. Insert the SIM card.
The SIM card PIN code is not correct. Enter the correct PIN code.
No connection to the cellular network.
• Check the connection to the antenna.
• Check the cellular coverage of the area using for
instance a mobile phone.
• Use an external antenna and experiment with the
position.
The LED1 for cellular communication is pulsating
yellow with single pulse, but CIM 260 cannot send or
receive SMS messages.
CIM 260 has not been initialised.
Follow the configuration procedure in "CIM 260 SMS
commands", which you can download from Grundfos
Product Center.
CIM 260 fitted in CIU 260
Fault (LED status)
Possible cause Remedy
Both LED1 and LED2 remain off when the power
supply is connected.
CIM 260 is fitted incorrectly in the Grundfos E-pump.
Ensure that CIM 260 is fitted and connected
correctly.
CIM 260 is defective. Replace CIM 260.
LED2 for internal communication is flashing red.
No internal communication between CIM 260 and
the Grundfos E-pump.
Ensure that the CIM 260 is fitted correctly in the
Grundfos E-pump.
LED2 for internal communication is permanently red.
CIM 260 does not support the Grundfos E-pump
connected.
Contact the nearest Grundfos company.
LED1 for cellular communication is flashing yellow.
The SIM card has not been inserted.
Insert the SIM card.
See section Inserting the SIM card.
The SIM card has not been inserted correctly.
Insert the SIM card.
See section Inserting the SIM card.
The SIM card PIN code is not correct.
Enter the correct PIN code.
See section Inserting the SIM card.
No connection to the cellular network.
• Check the connection to the antenna.
• Check the cellular coverage of the area using for
instance a mobile phone.
• Use an external antenna and experiment with
the position.
The LED1 for cellular communication is pulsating
yellow with single pulse, but CIM 260 cannot send or
receive SMS messages.
CIM 260 has not been initialised.
Follow the configuration procedure in "CIM 260 SMS
commands", which you can download from
Grundfos Product Center.
Related information
6.1.2 Inserting the SIM card
6.2 Status LEDs
44
English (GB)

Grundfos CIU 501 Specifications

General

Brand	Grundfos
Model	CIU 501
Category	Controller
Language	English