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Rockwell Automation Allen-Bradley Dialog Plus 1503D - Page 147

Rockwell Automation Allen-Bradley Dialog Plus 1503D
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Troubleshooting 10-5
1560D-UM051D-EN-P – February 2005
Table 10.B
Motor Will Not Start – No Output Voltage to the Motor
Display Possible Causes 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 page 2-9 to 2-11
to enable control capability
Check control voltage
Replace control module
Starting
Two or three power phases are missing
Check power system
Check voltage feedback
Table 10.C
Motor Rotates (but does not accelerate to full speed)
Display Possible Causes 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 to a higher setting
• Replace control module
Table 10.D
Motor Stops While Running
Display Possible Causes 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
Check voltage feedback
Replace control module

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