150-SB2NBD Allen Bradley

Serial SMC 50

 

The SMC-50 provides a scalable solution addressing power company requirements and distribution limitations.

Advanced linear starting technology yields consistent starting performance and limits peak current and torque shock. Advanced control and monitoring maximizes uptime with reduced need for system maintenance. Solid State power structure with optional external bypass provides operating redundancy. Optional communications allow monitoring and control over the existing EtherNet/IP backbone. Advanced diagnostics and condition monitoring support customizable protection. The Energy Saver mode helps reduce total power consumption during periods of light production

 

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Error codes

 

 

 

 

Fault name : Shorted SCR with phase indication (Code 4,5 or 6)

Possible causes : Shorted power module

Possible solutions : Check for shorted SCR, replace power module if necessary

 

 

Fault name : Open gate with phase indication (Code 7,8 or 9)

Possible causes : Open gate circuitry

                          Loose gate lead

Possible solutions : Perform resistance check; replace power module if necessary

                            Check gate lead connections to the control module

 

 

Fault name : PTC power pole and SCR Overtemp (Code 10 or 60)

Possible causes : Controller ventilation blocked

                         Controller duty cycle exceeded

                         Fan failure

                         Ambient temperature limit exceeded

                         Failed thermistor

Possible solutions : Check for proper ventilation

                             Check application duty cycle

                             Wait for motor to cool or provide external cooling

                             Replace power module or control module as needed

                             Replace fan

 

 

Fault name : Open Bypass(Code 11, 12 or 13)

Possible causes : Control voltage is low

                         Inoperable power module bypass

Possible solutions : Check control voltage power supply

                            Replace power module

                            Check control module TB2…TB4 and TB5…TB7 for proper order and secureness

                            Make sure that no auxiliary contact is set to “external bypass”

                       

 

Fault name : No load fault or Open load (Code 14, 15, 16 or 17)

Possible causes : Loss of load side power wiring with phase indication (15=A, 17=C)

                         Start command cycled unexpectedly with motor rotating

Possible solutions : Check all load side power connections

                            Check motor windings

 

 

Fault name : Voltage unbalance or Current imbalance (Code 18 or 42)

Possible causes : Power line unbalance is greater than the programmed value

                         The delay time programmed is too short for the application

Possible solutions : Check the power system and correct if necessary or change the programmed value

                             Extend the delay time to match the application requirements

                             Disable this fault/alarm feature

 

 

Fault name : Overvoltage (Code 19)

Possible causes : Supply voltage is greater than user programmed value

                         The delay time is too short for the application

Possible solutions : Check power system and correct if necessary

                            Correct the user-programmed value

                            Extend the delay time to match the application requirements.

 

 

Fault name : Undervoltage (Code 20)

Possible causes : Supply voltage is less than user programmed value

                         The delay time is too short for the application

Possible solutions : Check power system and correct if necessary

                             Correct the user-programmed value

                             Extend the delay time to match the application requirements.

 

 

Fault name : Overload (Code 21)

Possible causes : Motor overloaded

                         Overload parameters are not matched to the motor

Possible solutions : Check motor overload condition

                            Check values for overload class and motor FLC

                            Verify current draw of the motor

 

 

Fault name : Underload (Code 22)

Possible causes : Broken motor shaft, belts, grating etc…

                         Pump cavitation

                         Programmed setting incorrect for application

Possible solutions : Check machine drive components and loading

                             Check pump system

                             Repair or replace motor

                             Check programmed settings

                             Disable this fault/alarm feature

 

 

Fault name : Jam (Code 23)

Possible causes : Motor current has exceeded the user programmed jam level

Possible solutions : Correct source of jam or excessive loading

                             Check programmed time value

                             Disable this fault/alarm feature       

 

 

Fault name : Ground fault (Code X058)

Possible causes : Ground fault current level has exceeded programmed value

                          The delay time is too short for the application

Possible solutions : Check power system and motor; correct if necessary

                            Check programmed ground fault levels to match application requirements

                            Extend the delay time to match the application requirements