Problem
6 Communication has not been established. One red
LED (pos. 1) is flashing, and one red LED (pos. 2)
is off.
PC
Data
USB
1
7. Technical data
Ambient temperature
During operation: –10 °C to +50 °C
During storage: –20 °C to +60 °C.
Relative air humidity
Maximum 95 %.
Power supply
USB connection.
Current
Maximum 250 mA.
Enclosure class
IP20.
8. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Possible cause
• The PC Tool Link is defective.
PC Tool Link
Grundfos Unit
Data
RS232
TTL
GENIbus
(RS485)
Power
2
Suggested action
• Send the PC Tool Link to Grundfos
for service.
Subject to alterations.
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