Grundfos Eye is rotating red
Alarm, but the pump or motor is running.
Operation Pump running Ready Alarm Warning Operating mode
Manual
Grundfos Eye is flashing red
The pump or motor has been stopped due to an alarm.
Operation Pump running Ready Alarm Warning Operating mode
Stop
4.2.9 Signal cables
Use screened cables with a cross-sectional area of minimum 0.5 mm
2
and maximum 1.5 mm
2
for the external on/off switch, digital inputs,
setpoint and sensor signals.
The wires in the motor terminal box must be as short as possible.
Related information
4.2.9.1 Connecting signal cables
4.2.9.1 Connecting signal cables
1. Connect the screens of the cables to the frame at both ends with good connection. The screens must be as close as possible to the
terminals.
TM021325
2. Connect the signal cables to the terminals.
3. Tighten the terminal screws.
Related information
4.2.9 Signal cables
4.2.10 Bus connection cable
4.2.10.1
Connecting a 3-core bus cable
For the bus connection, use a screened 3-core cable with a cross-sectional area of minimum 0.5 mm
2
and maximum 1.5 mm
2
.
• If the motor is connected to a unit with a cable clamp which is identical to the one on the product, connect the screen to the cable clamp.
• If the unit has no cable clamp, leave the screen unconnected at this end.
TM070223
4.2.10.2
Replacing a 2-core bus cable
•
Connect a screened 2-core bus cable as follows:
24
English (GB)
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