Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) - Manual (Page 126)

116 Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013
Chapter 9 Troubleshooting
Underload 23 • Broken motor shaft
• Broken belts, tool bits, etc.
• Pump cavitation • Repair or replace motor
• Check machine
• Check pump system
Jam 24 • Motor current has exceeded the user
programmed jam level
• Correct source of jam
• Check programmed time value
Stall 25 • Motor has not reached full speed by the end of
the programmed ramp time
• Correct source of stall
Phase Reversal 26 • Incoming supply voltage is not in the expected
ABC sequence
• Check power wiring
• Disable protection if not needed
Comm Loss 27, 28, 29 • Communication disconnection at the serial port • Check for a communication cable disconnection
to the SMC Flex controller
Network 30, 31, 32 • DPI network loss • Reconnect for each DPI connected device
Ground Fault 33 • Ground fault current level has exceeded
programmed values
• Check power system and motor; correct if
necessary
• Check programmed ground fault levels to
match application requirements
Excess Starts/Hr. 34 • Number of starts in a one-hour period has
exceeded the value programmed
• Wait an appropriate amount of time to restart
• Consult factory if more than 2 starts per hour
are required
Power Loss
(1)
(with phase indication) 35, 36, 37 • Missing supply phase (as indicated)
• Loss of feedback • Check for open line (i.e., blown line fuse)
• Check CT connections, replace Interface board
HAL_ID 38 • Faulty interface • Check ribbon cable connections between
interface board and control module
• Check current loop system
• Replace interface board
NVS Error 39 • Data entry error • Check user data and perform a User Store
function
• Replace control module
Line Loss 41, 42, 43 • Line Distortion
• High impedance connection • Check supply voltage for capability to start/stop
motor
• Verify system grounding (refer to Resistance
Checks on page 68 of Chapter 3 )
• Check for loose connections on line side or
motor side power wires
V24 Loss 45 • Internal power supply problem • Cycle control power to reset the control module
• If Fault persists, replace control module
V Control Loss 46 • Internal sense circuit problem • Cycle control power to reset the control module
• If Fault persists, replace control module
Option Input 1 48 • External Fault • Check programming of Parameter 132
• Check status of device connected to Input 1
Option Input 2 49 • External Fault • Check programming of Parameter 24
• Check status of device connected to Input 2
System Faults 128 to 209 • Control module internal fault • Cycle control power to reset the control module
• If fault persists, replace control module
(1) Prestart fault indication
Display Fault Code Possible Causes Possible Solutions