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Grundfos MGE 71 - Functional Module

Grundfos MGE 71
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English (GB)
17
8.3 Functional module
1. The status diode of the functional module flashes
40-80 times/minute when the software is running correctly.
See fig. 35. The functional module can only function if the
power module is in operation, as the power module supplies
voltage to the functional module.
See section 8.3 Functional module.
Fig. 35 Status diode of functional module
2. If the light diode is flashing, the functional module is working
correctly. The fault may then be in the control panel.
See section 7.4 Replacing the control panel.
Warning
The terminals of the power module are live.
Relay RL1 may also be live.
Warning
Measuring equipment must be free of static
electricity or have same potential as the motor
before being used for measurement without
isolation cover.
Status Fault
Permanently on.
The microprocessor is frozen.
The functional module is
defective.
See section 7.7.
Light off.
The functional module is
defective.
See section 7.7.
Flashing
40-80 times/minute.
The processor of the functional
module is functional.
TM05 7124 0513
D41
D26

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