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156

Other fault

Internal communication failure in frequency converter

A

Internal communication fault in the pump due to defect 
in the terminal box.

Contact Grundfos Service.

175

Temperature sensor 2 signal outside 
signal range

Temperature sensor 2 signal fault

1)

Same as fault 91.

Same as fault 91.

190
191

Limit 1 exceeded
Limit 2 exceeded

Limit 1 exceeded
Limit 2 exceeded

1)

This is a monitoring function offering information, 
alarm or warning if a low or high limit is exceeded.
The function can only be set with the PC Tool 
E-products.

The function can be set to monitor
• sensor 1 or 2
• Pt100 sensor 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 the pump system whether the alarm or warning is real. If it is 

real, remedy the fault.

3. If the alarm or warning seems to be wrong for the pump system, 

troubleshoot according to the selected sensor using these service 
instructions.

240

Relubricate motor bearings

Motor bearings need lubrication (service information)

W

The motor has reached the number of operating hours 
stated in the configuration for the bearing lubrication.

Lubricate the bearings. See section 

4.1 Lubrication of motor bearings

.

Fault code Fault reading in the R100

Fault reading in PC Tool E-products

Fault type

Explanation/cause

Remedy

Summary of Contents for MGE-F

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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