Troubleshooting
10-3
Table 10.A SMC Fault Display Explanation
①
Prestart fault indication.
②
To further define this fault, the user can clear the fault and re-initiate a start signal. If the fault condition is still present, the controller will display either a Power Loss
or a Line Fault with the phase indicated.
Display
Fault
Code
Possible Causes
Possible Solutions
Power Loss
①
(with phase indication)
F1, F2, F3,
F30, F31,
& F32
•
Missing supply phase (as indicated)
•
Converter module and/or cable failure
•
Check for open line (i.e., blown line fuse)
•
Inspect converter module cable connections
Line Fault
①
(with phase indication)
F11, F12,
F13, F26,
F27, & F28
•
Missing supply phase
•
Motor not connected properly
•
Shorted SCR
•
Converter module and/or cable failure
•
Check for open line (i.e., blown fuse)
•
Check for open load lead
•
Check for shorted SCR; replace if necessary
•
Inspect converter module cable connections
•
Consult the factory
Line Fault
②
(no phase indication)
F15 and
F29
•
Missing supply phase
•
Motor not connected properly
•
Shorted SCR
•
Check for open line ( i.e., blown fuse)
•
Check for open load lead
•
Check for shorted SCR; replace if necessary
Voltage Unbalance
F10
•
Supply unbalance is greater than the user-
programmed value
•
The delay time is too short for the application
•
Check power system and correct if necessary
•
Extend the delay time to match the
application requirements
Phase Reversal
F16
•
Incoming supply voltage is not in the
expected ABC sequence
•
Check power wiring
Undervolt
F4
•
Supply voltage is less than user-programmed
value
•
The delay time is too short for the application
•
Check power system and correct if necessary
•
Correct the user-programmed value
•
Extend the delay time to match the
application requirements
Overvolt
F5
•
Supply voltage is greater than user-
programmed value
•
Check power system and correct if necessary
•
Correct the user-programmed value
Overload
F7
•
Motor overloaded
•
Overload parameters are not matched to the
motor
•
Check motor overload condition
•
Check programmed values for overload class
and motor FLC
Stall
F6
•
Motor has not reached full speed by the end
of the programmed ramp time
•
Correct source of stall
Jam
F19
•
Motor current has exceeded the user
programmed jam level.
•
Correct source of jam
Underload
F9
•
Broken motor shaft
•
Broken belts, toolbits, etc.
•
Pump cavitation
•
Repair or replace motor
•
Check machine
•
Check pump system
Open Gate
(with phase indication)
F23-F25
•
Open gate circuitry
•
Loose gate lead (180–1000A)
•
Perform resistance check; replace power
module if necessary
•
Check gate lead connections to the interface
board
Excess Starts/Hr.
F64
•
Number of starts in a one hour period has
exceeded the value programmed
•
Wait an appropriate amount of time to restart
•
Turn off the Starts/Hr. feature
Controller Temperature
F8
•
Controller ventilation blocked
•
Controller duty cycle exceeded
•
Fan failure (if used)
•
Ambient temperature limit exceeded
•
Failed thermistor
•
Failed control module
•
Check for proper ventilation
•
Check application duty cycle
•
Replace fan
•
Wait for controller to cool or provide external
cooling
•
Replace power module
•
Replace control module
Comm Fault
F21
•
Communication disconnection at the serial
port
•
Check for a communication cable
disconnection to the SMC Dialog Plus
controller
System Faults
F128 &
above
•
Internal control module hardware failure
•
Replace control module
MPU Comm Fault
—
•
Internal control module hardware failure
•
Replace control module
Curr Fdbk Loss
F20
•
Converter module cable disconnection
•
Inspect converter module cable and
connections
Содержание SMC Dialog Plus
Страница 46: ...2 20 Installation ...
Страница 78: ...4 14 Programming ...
Страница 149: ...9 6 Diagnostics ...
Страница 157: ...10 8 Troubleshooting Figure 10 3 Removal of Control Module 180 360A 1 3 2 4 ...
Страница 169: ...A 6 Specifications ...
Страница 179: ...C 4 Renewal Parts ...