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fault tracing

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3.1 FAULT

TRACING

When a fault is detected by the frequency converter control electronics, the drive is stopped and
the symbol F together with the ordinal number of the fault and the fault code appear on the
display. The fault can be reset with the

Reset button

on the control keypad or via the I/O terminal.

The faults are stored in the Fault history menu (H5) which can be browsed. The different fault
codes you will find in the table below.

The fault codes, their causes and correcting actions are presented in the table below. The
shadowed faults are A faults only. The items written in white on black background present faults
for which you can program different responses in the application. See parameter group
Protections.

Fault

code

Fault

Possible cause

Correcting measures

1

Overcurrent

Frequency converter has detected too
high a current (>4*I

n

) in the motor cable:

−

sudden heavy load increase

−

short circuit in motor cables

−

unsuitable motor

Check loading.
Check motor size.
Check cables.

2

Overvoltage

The DC-link voltage has exceeded the
limits defined in.

−

too short a deceleration time

−

high overvoltage spikes in utility

Make the deceleration time longer.

3

Earth fault

Current measurement has detected that
the sum of motor phase current is not
zero.

−

insulation failure in cables or motor

Check motor cables and motor.

5

Charging switch

The charging switch is open, when the
START command has been given.

−

faulty operation

−

component failure

Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.

8

System fault

-

component failure

-

faulty operation

Reset the fault and restart.
Should the fault re-occur, contact the
distributor near to you.

9

Undervoltage

DC-link voltage is under the voltage
limits defined in.

−

most probable cause: too low a
supply voltage

−

frequency converter internal fault

In case of temporary supply voltage
break reset the fault and restart the
frequency converter. Check the supply
voltage. If it is adequate, an internal
failure has occurred.
Contact the distributor near to you.

11

Output phase
supervision

Current measurement has detected that
there is no current in one motor phase.

Check motor cable and motor.

13

Frequency
converter
under-
temperature

Heatsink temperature is under –10

°

C

14

Frequency
converter
overtemperature

Heatsink temperature is over 90

°

C.

Overtemperature warning is issued when
the heatsink temperature exceeds 85

°

C.

Check the correct amount and flow of
cooling air.
Check the heatsink for dust.
Check the ambient temperature.
Make sure that the switching frequency
is not too high in relation to ambient
temperature and motor load.

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Содержание alfiff28

Страница 1: ...user s manual nxl frequency converters alfiff28 nxl lift application application manual ...

Страница 2: ...rs Control keypad Menu P2 Æ P2 5 8 3 7 Input Signals Control keypad Menu P2 Æ P2 6 9 3 8 Output signals Control keypad Menu P2 Æ P2 7 10 3 9 Protections Control keypad Menu P2 Æ P2 8 11 3 10 Autorestart parameters Control keypad Menu P2 Æ P2 9 12 3 11 Keypad control Control keypad Menu K3 12 3 12 System menu Control keypad Menu S6 12 3 13 Expander boards Control keypad Menu E7 12 4 Description of ...

Страница 3: ... converter NXL supports only open loop operation Evacuation is not supported by NXL Choose NXS or NXP if evacuation is required All outputs are freely programmable The inputs DIN3 DIN4 AI1 and DIN5 AI2 are also freely programmable Start forward and reverse signals are fixed to input DIN1 and DIN2 see next page An Expander board OPT AA will be needed to get the external inputs signals DIE1 DIE3 The...

Страница 4: ...grammable Can be used as DO2 Range 0 20 mA RL max 500Ω A RS 485 Serial bus Differential receiver transmitter B RS 485 Serial bus Differential receiver transmitter 30 24V 24V aux input voltage Control power supply backup 21 RO1 22 RO1 23 RO1 Relay output 1 RUN Programmable Table 2 1 Lift application default I O configuration I O terminals on option board OPT AA Terminal Signal in application Descri...

Страница 5: ...meters and signals as well as statuses and measurements Monitoring values cannot be edited See Vacon NXL User s Manual Chapter 7 4 1 for more information Code Parameter Unit ID Description V1 1 Output frequency Hz 1 Output frequency to motor V1 2 Frequency reference Hz 25 Frequency reference to motor control V1 3 Motor speed rpm 2 Motor speed in rpm V1 4 Motor current A 3 Measured motor current V1...

Страница 6: ...ly approx up to MF3 For greater sizes consult the factory Table 1 2 Motor parameters P2 1 3 3 Speed control Control keypad Menu P2 Æ P2 2 Code Parameter Min Max Unit Default Cust ID Note P2 2 1 Nominal Linear Speed 0 20 5 00 m s 1 00 1600 Nominal speed for lift P2 2 2 Speed Reference Selection 0 4 0 1601 0 Activity Reference 1 Activity Reference with direction 2 Binary reference 3 Fieldbus 4 Keypa...

Страница 7: ... parameters Control keypad Menu M2 Æ P2 3 Code Parameter Min Max Unit Default Cust ID Note G2 3 1 x OPENING BRAKE P2 3 1 1 Current limit FWD 0 par2 1 4 A 0 1700 P2 3 1 2 Current limit REV 0 par2 1 4 A 0 1701 P2 3 1 3 Torque limit FWD 0 100 0 30 1702 P2 3 1 4 Torque limit REV 0 100 0 30 1703 P2 3 1 5 Frequency limit FWD 0 par2 1 2 Hz 1 00 1704 P2 3 1 6 Frequency limit REV 0 par2 1 2 Hz 1 00 1705 P2...

Страница 8: ...rol P2 5 2 U f Optimization 0 1 0 109 0 None 1 Automatic torque boost P2 5 3 U f ratio selection 0 3 0 108 0 Linear 1 Squared 2 Programmable 3 Linear with flux optim P2 5 4 Field weakening point 30 00 320 00 Hz 50 00 602 P2 5 5 Voltage at field weakening point 10 00 200 00 100 00 603 n x Unmot P2 5 6 U f curve midpoint frequency 0 00 par P2 5 4 Hz 50 00 604 P2 5 7 U f curve midpoint voltage 0 00 1...

Страница 9: ...ed 1 Speed curve 2 2 Ext Fault close 3 Ext Fault open 4 Fault Reset 5 Run Enable 6 Emergency stop CC 7 Emergency stop OC 8 Override speed 9 Brake open Enable 10 Speed Reference 1 11 Speed Reference 2 12 Speed Reference 3 P2 6 3 DIN4 AI1 Function 0 12 2 499 As parameter 2 6 2 P2 6 4 DIN5 AI2 Function 0 12 0 1500 As parameter 2 6 2 P2 6 5 DIE1 Function 0 12 10 368 As parameter 2 6 2 P2 6 6 DIE2 Func...

Страница 10: ...7 1 P2 7 4 Expander board digital output 1 function 0 16 1 312 As parameter 2 7 1 P2 7 5 Analogue output function 0 9 1 307 0 Not used 1 Output freq 0 fmax 2 Freq reference 0 fmax 3 Motor speed 0 Motor nominal speed 4 Output current 0 InMotor 5 Motor torque 0 TnMotor 6 Motor power 0 PnMotor 7 Motor voltage 0 UnMotor 8 DC link volt 0 1000V 9 Digital output 2 P2 7 6 Analogue output filter time 0 00 ...

Страница 11: ...mperature factor 100 0 100 0 0 0 705 0 No response 1 Warning 2 Fault stop acc to 2 4 2 3 Fault stop by coasting P2 8 7 Motor cooling factor at zero speed 0 0 150 0 40 0 706 P2 8 8 Motor thermal time constant 1 200 Min 45 707 P2 8 9 Motor duty cycle 0 100 100 708 P2 8 10 Stall protection 0 3 1 709 As par 2 7 1 P2 8 11 Stall current limit 0 2x Inmotor A Inmotor x1 3 710 P2 8 12 Stall time limit 1 00...

Страница 12: ... Max Unit Default Cust ID Note P3 1 Control place 1 3 1 125 1 I O terminal 2 Keypad 3 Fieldbus R3 2 Freq reference 0 MaxFreq Hz 0 P3 3 Direction on keypad 0 1 0 123 0 Forward 1 Reverse R3 4 Stop button 0 1 1 114 0 Limited function of Stop button 1 Stop button always enabled Table 3 12 Keypad control parameters K3 3 12 System menu Control keypad Menu S6 For parameters and functions related to the g...

Страница 13: ...f the motor This parameter sets the field weakening point parameter 2 5 4 to the same value 2 1 3 Nominal speed of the motor Find this value nn on the rating plate of the motor 2 1 4 Nominal current of the motor Find this value In on the rating plate of the motor 2 1 5 Motor cos phi Find this value cos phi on the rating plate of the motor 2 1 6 Current limit This parameter determines the maximum m...

Страница 14: ...s with the external digital inputs on option board The first column contains the state of the digital inputs marked as DIE1 DIE2 and DIE2 The second column contains the parameter and the next column the corresponding speed reference The priority column defines which speed is activated if more than one digital input is activated If Speed reference is different when running to different direction th...

Страница 15: ...2 Activity reference with direction 2 Binary coding Eight different constant speeds are selected according to binary word formed through digital inputs DIE 1 2 3 Parameters SpeedRef Priority Direction 0 0 0 2 2 3 1 levelling speed irrelevant 1 0 0 2 2 3 2 nominal speed irrelevant 0 1 0 2 2 3 3 limited speed irrelevant 1 1 0 2 2 3 4 inspection speed irrelevant 0 0 1 2 2 3 5 preset speed 4 irrelevan...

Страница 16: ...leration of the lift car are presented in m s2 Acceleration and deceleration curves are affected by the jerk time settings too 2 2 4 3 Acc inc jerk 1 Acceleration increase jerk1 Jerk times are presented in ms Speed m s acceleration m s 2 t s t s P2 2 4 3 P2 2 4 4 P2 2 4 1 Figure 1 Jerks related to speed and acceleration 2 2 4 4 Acc dec jerk 1 Acceleration decrease jerk 1 2 2 4 5 Dec inc jerk 1 Dec...

Страница 17: ... is decelerated below the internal ramp switch frequency and the reference frequency is reached Ramp set 1 Speed Curve1 parameters is changed back when the Run request of the frequency converter is inactivated 2 2 5 2 Acceleration time 2 2 2 5 3 Deceleration time 2 Acceleration and deceleration of the lift car are presented in m s2 Acceleration and deceleration curves are affected by the jerk time...

Страница 18: ... reverse direction DIN3 or DIN4 can be programmed for brake open Enable The closing is performed by frequency and by Run request signal In case of fault the brake closes immediately without delay Run Request signal DC Brake P2 3 3 1 4 Br Open Del P2 3 1 7 BR Mec Delay P2 3 1 8 Brake Cl Del P2 3 2 2 Brake Open R02 P2 2 3 1 LevellingSpeed f Hz Max Freq Brake closed P2 3 1 9 P2 3 2 1 FreqCloseLim P2 ...

Страница 19: ...nal is programmable for digital input DIN3 or DIN4 In the lower section of Figure 3 you can find the mechanical brake closing logic The brake close circuit has higher priority than the open circuit So if closing signal is active the mechanical brake will be closed The brake will be closed immediately in case of fault or when the motor is stopped RESET SET BRAKE OPENING LOGIC BRAKE CLOSING LOGIC T ...

Страница 20: ... 3 1 2 Current Limit REV Parameter defines the actual current limit that has to be exceeded for a brake release If set to zero this condition is excluded The value is updated always when the nominal current of the motor parameter 2 1 4 is set see Figure 3 2 3 1 3 Torque limit FWD Parameter defines the actual torque limit that has to be exceeded for a brake release If set to zero this condition is ...

Страница 21: ...tput frequency does not exceed this value when mechanical brake is closed When modifying this parameter make sure that the brake release by frequency see parameter 2 3 1 5 2 3 1 6 is possible with new value Closing Brake Parameters M2 G2 3 2 2 3 2 1 Frequency limit closing The output frequency limit for the brake closing The run request signal needs to be disabled to allow the signal to affect 2 3...

Страница 22: ... The DC braking time is determined with this parameter Par 2 4 2 0 Stop function Coasting After the stop command the motor coasts to a stop without control of the frequency converter With DC injection the motor can be electrically stopped in the shortest possible time without using an optional external braking resistor The braking time is scaled according to the frequency when the DC braking start...

Страница 23: ...ts The braking time is defined with parameter 2 3 3 3 If high inertia exists it is recommended to use an external braking resistor for faster deceleration See Figure 5 Figure 5 DC braking time when Stop mode Ramp Par 2 4 2 2 Stop function Stop by frequency limit Stop mode depends on the actual frequency of the motor If frequency is above the frequency limit par 2 4 3 then the stop mode is coasting...

Страница 24: ...tor coasts to a halt without any control from the frequency converter after the Stop command Ramp 1 After the Stop command the speed of the motor is decelerated according to the set deceleration parameters If the regenerated energy is high it may be necessary to use an external braking resistor for faster deceleration Frequency limit 2 Coasting Stop if the motor frequency is above the frequency li...

Страница 25: ... likely that the motor will overheat If the motor has to run a prolonged time under these conditions special attention must be paid to cooling the motor Use external cooling for the motor if the temperature tends to rise too high 2 5 3 U f ratio selection Linear The voltage of the motor changes linearly with the frequency in the constant 0 flux area from 0 Hz to the field weakening point where the...

Страница 26: ...rent in order to save energy lower the disturbance level and the noise This function can be used in applications with constant motor load such as fans pumps etc 2 5 4 Field weakening point The field weakening point is the output frequency at which the output voltage reaches the set par 2 5 5 maximum value Un par 2 5 5 U V f Hz NX12K07 Default Nom inal voltage of the m otor Linear S quared Field we...

Страница 27: ...h the parameter 2 5 3 this parameter defines the middle point voltage of the curve See Figure 7 2 5 8 Output voltage at zero frequency If the programmable U f curve has been selected with the parameter 2 5 3 this parameter defines the zero frequency voltage of the curve See Figure 7 2 5 9 Switching frequency Motor noise can be minimised using a high switching frequency Increasing the switching fre...

Страница 28: ...c If both DIN switches are ON at the same time the second input is ignored d The drive can be re started when both DIN switches are in OFF position 1 DIN1 closed contact start open contact stop DIN2 closed contact reverse open contact forward Figure 9 Start Stop Reverse 2 DIN1 closed contact start forward DIN2 closed contact start reverse Same as selection 0 except rising edge pulse is not require...

Страница 29: ... used as digital input DIN4 Selections are the same as for Parameter 2 6 2 2 6 4 DIN5 Analog input 2 function The analog input 2 is used as digital input DIN5 Selections are the same as for Parameter 2 6 2 2 6 5 Expander board DIE1 function Function selection for Expander board digital input DIE1 Selections are the same as for Parameter 2 6 2 2 6 6 Expander board DIE2 function Function selection f...

Страница 30: ... Used 8 Warning Always if a warning exists 9 Reversed The reverse command has been selected 10 Preset speed A preset speed has been selected 11 At speed The output frequency has reached the set reference 12 Motor regulator activated Overvoltage or overcurrent regulator was activated 13 Output frequency limit 1 supervision Not used in this application 14 Control from I O terminals Selected control ...

Страница 31: ...the analogue output signal If you set value 0 for this parameter no filtering takes place Figure 10 Analogue output filtering 2 7 7 Analogue output invert Inverts the analogue output signal Maximum output signal 0 Minimum output signal Maximum set value parameter 2 7 9 0 Not inverted 1 Inverted See parameter 2 7 9 Figure 11 Analogue output invert 2 7 8 Analogue output minimum Sets the signal minim...

Страница 32: ...100 x PnMotor Motor voltage 100 x Unmotor DC link voltage 1000 V Table 1 1 Analogue output scaling Figure 12 Analogue output scaling 2 7 10 Output frequency limit 1 supervision function 0 No supervision 1 Low limit supervision 2 High limit supervision If the output frequency goes under over the set limit par 2 7 10 this function generates a warning message via the relay outputs depending on the se...

Страница 33: ...2 3 Fault stop mode after fault always by coasting For the undervoltage limits see Vacon NXL User s Manual Table 4 3 Note This protection can not be inactivated 2 8 3 Output phase supervision 0 No response 1 Warning 2 Fault stop mode after fault according to parameter 2 4 2 3 Fault stop mode after fault always by coasting Output phase supervision of the motor ensures that the motor phases have an ...

Страница 34: ... specifies the load current above which the motor is overloaded This current limit is a function of the output frequency CAUTION The calculated model does not protect the motor if the airflow to the motor is reduced by blocked air intake grill 2 8 5 Motor thermal protection 0 No response 1 Warning 2 Fault stop mode after fault according to parameter 2 4 2 3 Fault stop mode after fault always by co...

Страница 35: ...d 63 of its final value The motor thermal time is specific to the motor design and it varies between different motor manufacturers If the motor s t6 time t6 is the time in seconds the motor can safely operate at six times the rated current is known given by the motor manufacturer the time constant parameter can be set basing on it As a rule of thumb the motor thermal time constant in minutes equal...

Страница 36: ...d with two parameters 2 8 11 Stall current and 2 8 13 Stall frequency If the current is higher than the set limit and output frequency is lower than the set limit the stall state is true There is actually no real indication of the shaft rotation Stall protection is a type of overcurrent protection 2 8 10 Stall protection 0 No response 1 Warning 2 Fault stop mode after fault according to parameter ...

Страница 37: ... If the parameter 2 1 4 Nominal current of motor is changed this parameter is automatically restored to the default value InMotor 1 3 Figure 16 Stall characteristics settings 2 8 12 Stall time limit This time can be set between 1 0 and 120 0s This is the maximum time allowed for a stall stage The stall time is counted by an internal up down counter If the stall time counter value goes above this l...

Страница 38: ...Response to fieldbus fault Set here the response mode for the fieldbus fault if a fieldbus board is used For more information see the respective Fieldbus Board Manual See parameter 2 8 14 2 8 16 Response to slot fault Set here the response mode for a board slot fault due to missing or broken board See parameter 2 8 14 2 8 17 Minimum current limit If actual current of the motor is below the minimum...

Страница 39: ...e Automatic restart function restarts the frequency converter when the faults have disappeared and the waiting time has elapsed Figure 10 Example of Automatic restart with two restarts The time count starts from the first autorestart If the number of faults occurring during the trial time exceeds three the fault state becomes active Otherwise the fault is cleared after the trial time has elapsed a...

Страница 40: ...ormation see Vacon NXL User s Manual Chapter 7 4 3 2 3 3 Keypad direction 0 Forward The rotation of the motor is forward when the keypad is the active control place 1 Reverse The rotation of the motor is reversed when the keypad is the active control place For more information see Vacon NXL User s Manual Chapter 7 4 3 3 3 4 Stop button activated If you wish to make the Stop button a hotspot which ...

Страница 41: ...th Run Enable Start Stop Buttons Internal Frequency reference DIN1 DIN2 DIN Run Enable Fw Bw P3 3 Keypad Direction Start Stop from Fieldbus Direction from Fieldbus DIE1 DIE2 DIE3 Speed Selection Input 1 Input 2 Input 3 Speed Reference parameters P2 2 3 x P2 2 2 Speed Reference P3 1 Control Place Reference Fieldbus DIN DIN is Programmable input Function for input can be selected NOTE Same function ...

Страница 42: ...t Current measurement has detected that the sum of motor phase current is not zero insulation failure in cables or motor Check motor cables and motor 5 Charging switch The charging switch is open when the START command has been given faulty operation component failure Reset the fault and restart Should the fault re occur contact the distributor near to you 8 System fault component failure faulty o...

Страница 43: ...r defective hardware Should the fault re occur contact the distributor near to you 39 Device removed Option board removed Drive removed Reset 40 Device unknown Unknown option board or drive Contact the distributor near to you 41 IGBT temperature IGBT Inverter Bridge overtemperature protection has detected too high a motor current Check loading Check motor size 44 Device change Option board changed...

Страница 44: ...d Hinckley Fields Industrial Estate Hinckley LE10 1YF Leicestershire vacon uk vacon com tel 44 0 1455 611 515 fax 44 0 1455 611 517 Italy Vacon S p A Via F lli Guerra 35 42100 Reggio Emilia info vacon it tel 39 0522 276811 fax 39 0522 276890 The Netherlands Vacon Benelux BV Weide 40 4206 CJ Gorinchem vacon benelux vacon com tel 31 0 183 642 970 fax 31 0 183 642 971 Norway Vacon AS Langgata 2 3080 ...

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