Rockwell Automation 150 USE MN/SMC DIALOG + CONTROLLER - Manual (Page 153)

10-4 Troubleshooting
Table 10.B Motor Will Not Start — No Output Voltage to the Motor
Table 10.C Motor Rotates (but does not accelerate to full speed)
Table 10.D Motor Stops While Running
Display Possible Cause Possible Solutions
Fault displayed
• See fault description • See Table 10.A
addressing fault
conditions
Display is blank
• Control voltage is
absent
• Failed control module
• Check control wiring and
correct if necessary
• Replace control module
Stopped
0.0 Amps
• Pilot devices
• SMC Enable input is
open at terminal 13
• Terminal 15 is open on
Soft Stop, Pump
Control, and SMB
• Start-Stop control has
not been enabled for
the human interface
module
• Control voltage
• Failed control module
• Check wiring
• Check wiring
• Check wiring
• Follow the instructions on
pages 2-13 and 2-14 to
enable control capability
• Check control voltage
• Replace control module
Starting
• Two or three power
phases are missing • Check power system
Display Possible Cause Possible Solutions
Fault displayed
• See fault description • See Table 10.A
addressing fault
conditions
Starting
• Mechanical problems
• Inadequate Current
Limit setting
• Failed control module
• Check for binding or
external loading and
correct
• Check motor
• Adjust the Current Limit
Level to a higher setting
• Replace control module
Display Possible Cause Possible Solutions
Fault displayed
• See fault description • See Table 10.A
addressing fault
conditions
Display is blank
• Control voltage is
absent
• Failed control module
• Check control wiring and
correct if necessary
• Replace control module
Stopped
0.0 Amps
• Pilot devices
• Failed control module
• Check control wiring and
correct if necessary
• Replace control module
Starting
• Two or three power
phases are missing
• Failed control module
• Check power system
• Replace control module