Siemens MasterDrive VC Fault Codes

Fault codes, causes, and solutions for Siemens MasterDrive VC AC Variable Frequency Drive.

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Drive Type
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Manufacturer
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Fault Codes

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User Manual Available

Download the official manual for Siemens MasterDrive VC AC Variable Frequency Drive.

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Siemens MasterDrive VC AC Variable Frequency Drive Fault Codes
Back
F001
Main contactor checkback
F002
Pre-charging
F006
DC link overvoltage
F008
DC link undervoltage
F010
DC link overvoltage
F011
Overcurrent
F012
I too low
F014
I too low
F015
Motor stall
F017
SAFE STOP (Compact PLUS only)
F018
F set fly
F019
Motor not found
F020
Motor temperature
F021
Motor I2t
F023
Inverter temperature
F025
UCE Ph. L1
F026
UCE Ph. L2
F027
UCE Ph. L3
F028
Supply phase
F029
Meas. value sensing
F035
Ext. Fault 1
F036
Ext. Fault 2
F037
Analog input
F038
Voltage OFF during parameter storage
F040
AS internal
F041
EEPROM fault
F042
Calculating time
F044
BICO manager fault
F045
Opt. Board HW
F046
Par. Task
F047
Gating Calc Time
F048
Gating Pulse Freq
F049
SW version
F050
TSY Init. (not Compact PLUS)
F051
Speed encoder
F052
n-Cntr.Input
F053
Tachometer dn/dt
F054
Sensor board initialization fault
F056
SIMOLINK telegram failure
F057
Brake does not open
F058
Parameter fault Parameter task
F059
Parameter fault after factory setting/init.
F060
MLFB is missing
F061
Incorrect parameterization
F062
Multi-parallel circuit (not Compact PLUS)
F065
Scom Telegram
F070
SCB initialization fault (not Compact PLUS)
F072
EB initialization fault
F073
AnInp1SL1 (not Compact PLUS)
F074
AnInp2 SL1 (not Compact PLUS)
F075
AnInp3 SL1 (not Compact PLUS)
F076
AnInp1 SL2 (not Compact PLUS)
F077
AnInp2 SL2 (not Compact PLUS)
F078
AnInp3 SL2 (not Compact PLUS)
F079
SCB telegram failure (not Compact PLUS)
F080
TB/CB initialization fault
F081
OptBrdHeartbeat-Counter
F082
TB/CB telegram failure
F085
Add. CB initialization fault
F087
SIMOLINK initialization fault
F090
Mld Param.
F091
Mld Time
F095
Mld n(set)
F096
Mld abort
F097
Mld meausred value
F098
Mld Tachof
F100
GRND Init
F101
GRND UCE
F102
GRND Phase
F103
Ground fault
F107
MLd = 0
F108
Mld Unsym
F109
Mld R(L)
F110
Mld di/dt
F111
Fault e_Func
F112
Unsym I_sigma
F114
Mld OFF
F115
KF internal
F116
Technology board fault (not Compact PLUS)
F117
Technology board fault (not Compact PLUS)
F118
Technology board fault (not Compact PLUS)
F119
Technology board fault (not Compact PLUS)
F120
Technology board fault (not Compact PLUS)
F121
Technology board fault (not Compact PLUS)
F122
Technology board fault (not Compact PLUS)
F123
Technology board fault (not Compact PLUS)
F124
Technology board fault (not Compact PLUS)
F125
Technology board fault (not Compact PLUS)
F126
Technology board fault (not Compact PLUS)
F127
Technology board fault (not Compact PLUS)
F128
Technology board fault (not Compact PLUS)
F129
Technology board fault (not Compact PLUS)
F130
Technology board fault (not Compact PLUS)
F131
Technology board fault (not Compact PLUS)
F132
Technology board fault (not Compact PLUS)
F133
Technology board fault (not Compact PLUS)
F134
Technology board fault (not Compact PLUS)
F135
Technology board fault (not Compact PLUS)
F136
Technology board fault (not Compact PLUS)
F137
Technology board fault (not Compact PLUS)
F138
Technology board fault (not Compact PLUS)
F139
Technology board fault (not Compact PLUS)
F140
Technology board fault (not Compact PLUS)
F141
Technology board fault (not Compact PLUS)
F142
Technology board fault (not Compact PLUS)
F143
Technology board fault (not Compact PLUS)
F144
Technology board fault (not Compact PLUS)
F145
Technology board fault (not Compact PLUS)
F146
Technology board fault (not Compact PLUS)
F147
Technology board fault (not Compact PLUS)
F148
Fault 1 Function blocks
F149
Fault 2 Function blocks
F150
Fault 3 Function blocks
F151
Fault 4 Function blocks
F152
Signs of life repeatedly invalid.
F243
Link int.
F244
ParaLink int.
F255
Fault in EEPROM
A001
Calculating time
A002
SIMOLINK start alarm
A014
Simulation active alarm
A015
External alarm 1
A016
External alarm 2
A017
SAFE STOP alarm active
A020
Overcurrent
A021
Overvoltage
A022
Inverter temperature
A023
Motor temperature
A024
Motor movement
A025
I2t Inverter
A026
Ud too high
A029
I2t motor
A033
Overspeed
A034
Setpoint/actual value deviation
A035
Wire break
A036
Brake checkback "Brake still closed"
A037
Brake checkback "Brake still open"
A041
Vdmax controller inhibit
A042
Motor stall/lock
A043
n-act jump
A044
I too low
A045
DC braking activated
A049
No slave (not Compact PLUS)
A050
Slave incorrect (not Compact PLUS)
A051
Peer baud rate (not Compact PLUS)
A052
Peer PcD L (not Compact PLUS)
A053
Peer Lng f. (not Compact PLUS)
A057
TB Param (not Compact PLUS)
A061
Alarm 1 Function blocks
A062
Alarm 2 Function blocks
A063
Alarm 3 Function blocks
A064
Alarm 4 Function blocks
A065
Auto restart active
A066
fsyn > fmax
A067
fsyn < fmin
A068
fsyn<>fsoll
A069
RGen active
A070
Sync error
A071
tSY missing
A075
Ls, Rr Dev.
A076
t-comp lim
A077
r-g limit
A078
Stands. Meas
A079
Mld Inv Stop
A080
MotId:Dr.M
A081
CB alarm
A082
CB alarm
A083
CB alarm
A084
CB alarm
A085
CB alarm
A086
CB alarm
A087
CB alarm
A088
CB alarm
A089
CB alarm
A090
CB alarm
A091
CB alarm
A092
CB alarm
A093
CB alarm
A094
CB alarm
A095
CB alarm
A096
CB alarm
A097
TB alarm 1 (not Compact PLUS)
A098
TB alarm 1 (not Compact PLUS)
A099
TB alarm 1 (not Compact PLUS)
A100
TB alarm 1 (not Compact PLUS)
A101
TB alarm 1 (not Compact PLUS)
A102
TB alarm 1 (not Compact PLUS)
A103
TB alarm 1 (not Compact PLUS)
A104
TB alarm 1 (not Compact PLUS)
A105
TB alarm 1 (not Compact PLUS)
A106
TB alarm 1 (not Compact PLUS)
A107
TB alarm 1 (not Compact PLUS)
A108
TB alarm 1 (not Compact PLUS)
A109
TB alarm 1 (not Compact PLUS)
A110
TB alarm 1 (not Compact PLUS)
A111
TB alarm 1 (not Compact PLUS)
A112
TB alarm 1 (not Compact PLUS)
A113
TB alarm 2 (not Compact PLUS)
A114
TB alarm 2 (not Compact PLUS)
A115
TB alarm 2 (not Compact PLUS)
A116
TB alarm 2 (not Compact PLUS)
A117
TB alarm 2 (not Compact PLUS)
A118
TB alarm 2 (not Compact PLUS)
A119
TB alarm 2 (not Compact PLUS)
A120
TB alarm 2 (not Compact PLUS)
A121
TB alarm 2 (not Compact PLUS)
A122
TB alarm 2 (not Compact PLUS)
A123
TB alarm 2 (not Compact PLUS)
A124
TB alarm 2 (not Compact PLUS)
A125
TB alarm 2 (not Compact PLUS)
A126
TB alarm 2 (not Compact PLUS)
A127
TB alarm 2 (not Compact PLUS)
A128
TB alarm 2 (not Compact PLUS)
FF01
Time slot overflow
FF03
Access fault Optional board
FF04
RAM
FF05
EPROM fault
FF06
Stack overflow
FF07
Stack underflow
FF08
No description available
FF09
No description available
FF10
No description available
FF11
No description available
FF13
Wrong firmware version
FF14
FF processing
FF15
CSTACK_OVERFLOW

About Drive Fault Codes

Both AC Variable Frequency Drives (VFDs) and DC Drives display fault codes when they encounter operational issues. These codes help technicians diagnose and resolve problems quickly. This tool provides fault codes, descriptions, causes, and solutions for various drive manufacturers and models.

If you can't find your specific drive model or the fault code you're experiencing, please refer to the manufacturer's documentation or contact technical support.

Understanding Drive Fault Codes

What are Drive Fault Codes?

Drive fault codes are diagnostic messages displayed by AC and DC drives to indicate specific errors or malfunctions. These codes are essential for troubleshooting and maintaining industrial motor control systems. Each manufacturer uses unique code formats, but they generally point to similar issues like overvoltage, undervoltage, overcurrent, overheating, or communication failures.

Common Drive Types

AC Variable Frequency Drives (VFDs)

VFDs control AC motors by adjusting frequency and voltage to regulate motor speed and torque. They are widely used in applications requiring variable speed control with energy efficiency.

  • Control both speed and torque
  • Energy-efficient operation
  • Smooth acceleration/deceleration
  • Regenerative braking capabilities

DC Drives

DC drives control DC motors by adjusting the armature voltage and sometimes the field current. They excel in applications requiring high starting torque and precise speed control.

  • High starting torque
  • Simple control architecture
  • Wide speed range control
  • Quick response to command changes

Common Drive Fault Categories

Power-Related Faults

  • Input phase loss
  • Overvoltage during acceleration/deceleration
  • Undervoltage conditions
  • DC bus voltage issues

Thermal Faults

  • Drive overheating
  • Motor overtemperature
  • Heatsink thermal issues
  • Cooling system failures

Communication Faults

  • Fieldbus communication errors
  • Serial communication timeout
  • Network connection issues
  • Protocol compatibility problems

Motor/Load Faults

  • Motor overload
  • Output phase loss
  • Overcurrent during acceleration
  • Ground/earth faults

Troubleshooting Best Practices

When troubleshooting drive fault codes, always follow these best practices:

  1. Document the exact fault code and conditions when it occurred
  2. Check for simple issues first (loose connections, overloaded motor)
  3. Verify input power quality and stability
  4. Inspect the motor and load for mechanical issues
  5. Examine environmental conditions (temperature, humidity, dust)
  6. Consult manufacturer documentation for specific guidance

Popular Drive Manufacturers

Our database includes fault codes from leading drive manufacturers including:

  • ABB
  • Siemens
  • Allen Bradley / Rockwell Automation
  • Schneider Electric
  • Danfoss
  • Yaskawa
  • Mitsubishi Electric
  • Eaton
  • Emerson
  • Fuji Electric

For additional resources on drive maintenance and troubleshooting, check out our Drive Maintenance Guide and Motor Sizing Calculator.

Frequently Asked Questions

How do I reset a drive fault code?

What causes overcurrent faults in drives?

What's the difference between AC and DC drives?

Can I view fault history on a drive?

How can I prevent common drive faults?