Grundfos CIM 150 PROFIBUS DP, Functional Profile And User Manual

Page: 26 / 36

English (GB)
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9. Fault finding the product
9.1 CIM/CIU 150
You can detect faults in a CIM 150 PROFIBUS module by
observing the status of the two communication LEDs. See the
table below.
9.1.1 LED status
CIM 150 fitted in a Grundfos booster system
CIM 150 fitted in CIU 150
Fault (LED status) Possible cause Remedy
1. LED1 and LED2 remain off when the
power supply is connected.
a) CIM 150 is fitted incorrectly in the
Grundfos product.
Check that CIM 150 is fitted and connected
correctly.
b) CIM 150 is defective. Replace the CIM 150.
2. LED2 for internal communication is
flashing red.
a) No internal communication between
CIM 150 and the Grundfos product.
Check that CIM 150 is fitted correctly in the
Grundfos product.
3. LED2 for internal communication is
permanently red.
a) CIM 150 does not support the
connected Grundfos product.
Contact the nearest Grundfos company.
4. PROFIBUS LED1 is permanently red. a) Fault in CIM 150. Contact the nearest Grundfos company.
5. PROFIBUS LED1 is flashing red. a) Fault in the CIM 150 PROFIBUS
configuration.
• Check that the PROFIBUS address,
switches SW3 and SW4, has a valid value
[1-126]. See section
5.4 Setting the
PROFIBUS address
.
• Check that the GSD file used is correct.
• Check that the PROFIBUS cable has
been fitted correctly. See section
5.3 Connecting the PROFIBUS
.
• Check that the PROFIBUS termination is
correct. See section
5.5 Termination
resistors
.
Fault (LED status) Possible cause Remedy
1. LED1 and LED2 remain off when the
power supply is connected.
a) CIU 150 is defective.
Replace CIU 150.
2. LED2 for internal communication is
flashing red.
a) No internal communication between
CIU 150 and the Grundfos product.
• Check the cable connection between CIU
150 and the Grundfos product.
• Check that the individual conductors have
been fitted correctly.
• Check the power supply to the Grundfos
product.
3. LED2 for internal communication is
permanently red.
a) CIM 150 does not support the
connected Grundfos product.
Contact the nearest Grundfos company.
4. PROFIBUS LED1 is permanently red. a) Fault in CIM 150. Contact the nearest Grundfos company.
5. PROFIBUS LED1 is flashing red. a) Fault in the CIM 150 PROFIBUS
configuration.
• Check that the PROFIBUS address,
switches SW3 and SW4, has a valid value
[1-126]. See section
5.4 Setting the
PROFIBUS address
.
• Check that the GSD file used is correct.
• Check that the PROFIBUS cable has
been fitted correctly.
• Check that the PROFIBUS termination is
correct. See section
5.5 Termination
resistors
.
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