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3.3 Operating conditions

Correct functioning of the MGE-F depends on these points:

Mains supply

Check nameplate data, and measure the actual supply voltage with a digital voltmeter (true RMS).

Check the earth leakage circuit breaker and the backup fuses. The MGE-F has no internal fuses.

Pump and motor load

Check nameplate data, and measure the actual current consumption with a digital amperemeter (true RMS).
Do the pump and the MGE-F match?

External signals, for instance from another controller

Check that the external signals are suitable for the MGE-F. See section 

2.1 Wiring diagrams and signal terminals

 

and installation and operating instructions for MGE 160 and MGE 180.

Check that terminals 2 and 3 are connected and that the MGE-F has been started via the control panel.

Sensors connected

Check that the sensor measuring range matches the pump application.

Check that the settings of the MGE-F match the sensors (current, voltage, minimum and maximum values) 
(requires an R100).

Condensation

Check whether condensation occurs in the terminal box. This may happen if the ambient temperature becomes 
very low. The problem may be overcome by enabling the standstill heating function and by removing the drain plug 
in the motor. See installation and operating instructions for MGE 160 and MGE 180.

Electromagnetic disturbances

Check that the wiring complies with the EMC Directive. See installation and operating instructions for MGE 160 and 
MGE 180.

Start-up, installation and operating settings via the control panel or the R100

Check that the green indicator light on the control panel (or inside the terminal box) is on.

Check that the settings in the 

INSTALLATION 

menu match the pump application (requires an R100). 

The menu displays are described in detail in the installation and operating instructions for MGE 160 and MGE 180.

If the above points are according to the installation and operating instructions for MGE 160 and MGE 180 and the pump 
application, but a fault still exists and the red indicator light is on, continue the fault finding in sections 

3.5 Fault finding 

using the indicator lights on the control panel

 and 

3.6 Fault finding using alarm and warning codes

.

3.4 Fault observations

3.4.1 Condensation in the terminal box

Description

Condensation in the terminal box.

Explanation

During standstill, the motor temperature will fall below the dew point of the surrounding air. 
Then the humidity in the air may condensate and settle on the surface of the terminal box.

Check/remedy

Activate 

Standstill heating 

with the R100 in the 

INSTALLATION

 menu.

Содержание MGE-F

Страница 1: ...GRUNDFOS INSTRUCTIONS MGE model F Service instructions...

Страница 2: ...he MGE F is fitted to Nameplate data of the MGE F Status for indicator lights on the control panel Any alarm or warning and the corresponding fault code read with the Grundfos R100 remote control Thes...

Страница 3: ...t finding procedure 10 3 3 Operating conditions 11 3 4 Fault observations 11 3 5 Fault finding using the indicator lights on the control panel 12 3 6 Fault finding using alarm and warning codes 17 4 M...

Страница 4: ...ncy according to CEMEP 9 Motor protection according to IEC 34 11 20 C Tick mark 10 Insulation class according to IEC 62114 21 Country of manufacture 11 Frequency 22 Bar code TM04 3051 3508 Fig 3 Namep...

Страница 5: ...tor it must be reconfigured Contact Grundfos Service Example MG E 160 M D 2 42 FF 300 F 1 Motor Grundfos Electronically controlled Frame size according to IEC centre line height of shaft of foot motor...

Страница 6: ...IN 5V 10mA CONNECTION FOR PC TOOL NC2 C2 NO2 SIGNAL RELAY MAX 250 V 2A AC1 MIN 5V 10mA STATUS LED OPTIONAL 7 SENSOR INPUT 8 24V 9 GND 1 DIGITAL INPUT 0 10V 0 4 20mA A RS485 A Y RS485 GND B RS485 B 0 1...

Страница 7: ...SIGNAL RELAY MAX 250 V 2A AC1 MIN 5V 10mA CONNECTION FOR PC TOOL NC2 C2 NO2 SIGNAL RELAY MAX 250V 2A AC 1 MIN 5V 10mA TPED 0 10V 2 RUN STOP 3 GND 4 SETPOINT 5 10V 6 GND 10k 0 4 20mA SUPPLY SEE NAMEPLA...

Страница 8: ...h the motor via infrared light During communication the R100 must be pointed at the control panel When the R100 communicates with the motor the red indicator light will flash rapidly Keep pointing the...

Страница 9: ...will adapt to the application set and possible functional modules The menu structure below applies to a CRE pump To see the correct menu structure see installation and operating instructions for the p...

Страница 10: ...alarms or warnings the display will show No alarm indication or No warning indication Alarm and warning logs In case of alarm or warning the latest five alarms and warnings appear from the alarm and w...

Страница 11: ...on and by removing the drain plug in the motor See installation and operating instructions for MGE 160 and MGE 180 Electromagnetic disturbances Check that the wiring complies with the EMC Directive Se...

Страница 12: ...ceed to point b b Has the communication cable been disconnected YES NO Check the communication cable Contact Grundfos Service 2 The pump is running at maximum speed The sensor signal is outside the se...

Страница 13: ...ing using the R100 Proceed to point c c Is the voltage to the setpoint connection 10 VDC TM02 1607 1601 NO YES Replace the terminal box Proceed to point d d Is the setpoint signal below 10 V type 0 10...

Страница 14: ...ected to DI3 terminals 9 10 or DI4 terminals 9 11 NO YES Flow switch closed Pump is not supposed to run Flow switch open Pump must be running If the flow switch is defective replace it Does the pump s...

Страница 15: ...8 NO YES Connect the sensor signal correctly If the pump does not run correctly replace the I O module or the terminal box If the sensor is defective replace it Off Off The pump is not running 1 The p...

Страница 16: ...ossibility 5 Other faults wrong terminal box wrong configuration fatal fault Replace the terminal box Reconfigure the terminal box Replace the terminal box Flashing 1 Hz Off Normal operational stop Th...

Страница 17: ...ation W The motor has reached the number of operating hours for the bearing service life that is stated in the configuration Replace the bearings See section 4 2 Replacement of motor bearings 31 Repla...

Страница 18: ...ervice Fault in stator windings Contact Grundfos Service Terminal box defective Contact Grundfos Service 77 Duty standby Communication fault Twin pump communication fault W Communication between the t...

Страница 19: ...emperature of the electronics is above 100 C The measured temperature can be read via PC Tool E products Cause Temperature sensor defective Contact Grundfos Service Continued overload Reduce the load...

Страница 20: ...nsor 1 or 2 external setpoint the feedback signal The limit set has been exceeded either upwards or downwards Procedure 1 Using PC Tool E products check which function is being monitored 2 Check in th...

Страница 21: ...on 2 6 Alarms and warnings 4 1 2 Lubrication procedure 1 Connect the grease gun to the lubricating nipples and apply the prescribed quantity of grease 2 Confirm the lubrication in the INSTALLATION men...

Страница 22: ...Remove the bearing end shield in the non drive end and the spring pos 158 7 Remove the screws pos 185 holding the bearing end shield in the drive end pos 156b 8 Carefully pull the bearing end shield...

Страница 23: ...g end shield in the drive end and the shaft rotor to their position inside the stator housing Take care not to damage the stator windings 7 Fasten the bearing end shield in the drive end with the scre...

Страница 24: ...See fig 24 Unscrew the nuts from the motor terminals 4 Connect the conductors as shown on the label on the cover over the motor terminals See fig 25 Use the screws from the supply terminals and the n...

Страница 25: ...he joints of motor conductors and supply conductor Push the insulating hose down over the motor conductors again 3 Fit the motor conductors on the correct motor terminal Blue black to U1 W2 white grey...

Страница 26: ...26 32 6 Drawings and diagrams The position numbers in fig 29 refer to the list on page 27 TM04 5781 3909 Fig 29 Exploded view MGE F...

Страница 27: ...b V ring drive end 165 Knock out cable entry 170a Nameplate 171 Key 172 Shaft with rotor 178 Screw terminal box 178a Lock washer D10 5 D16 x 1 A2 178b Nut M10 DIN 934 A2 waxed 182 Screw bearing cover...

Страница 28: ...28 32 The position numbers in fig 30 refer to the list on page 29 TM04 2593 2708 Fig 30 Exploded view terminal box...

Страница 29: ...her earth screw 273 Control board 274 Rectifier board 275 Inverter board 275a Screw for inverter board and rectifier board 276 Busbar 276a Nut for busbar 277 Insulation cover 277a Screw for insulation...

Страница 30: ...tor 4 279b Terminal for varistor 1 5 276a Nuts for busbar 2 2 281a Screws for coil 4 275a Screws for rectifier board and inverter board 4 Screws for inverter and IGBT step 1 step 2 4 4 264 Screws for...

Страница 31: ...rewdriver D Torx screwdrivers set T20 T25 96884908 E Hexagon socket screwdriver 8 mm Pos Designation Supplementary information Product number F Torque screwdriver 1 6 Nm SV0438 G Torque wrench H Hexag...

Страница 32: ...15 Higashi gotanda Shiagawa ku Tokyo 141 0022 Japan Phone 81 35 448 1391 Telefax 81 35 448 9619 Korea GRUNDFOS Pumps Korea Ltd 6th Floor Aju Building 679 5 Yeoksam dong Kangnam ku 135 916 Seoul Korea...

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