1305 TROUBLESHOOTING GUIDE
FAULT
DESCRIPTION
CORRECTIVE ACTION
Diag C Lim Fault
F36
The drive output current has exceeded the software [Current
Limit] and the [Cur Lim Trip En] parameter was enabled.
Check programming of [Curr Lim Trip En] parameter. Check
for excess load, improper DC boost setting, DC brake volts set
too high or other causes of excess current.
Drive Reset Fault
F22
Occurs on power-up. It is reset by the stop input. If the
input is set already, it will be cleared automatically on power-up.
Check stop connection at TB2, terminal 8.
EEprom Fault
F32
EEPROM has invalid data or can not be programmed to valid
data. Reset to Default Parameters and CYCLE power.
Check cable connection from main control board to power
board.
Hz Err Fault
F29
This fault indicates that there is not a valid operating frequency.
It can be caused by any of the following:
1. [Maximum Frequency] is less than [Minimum Freq].
2. Skip frequencies and skip bandwidth eliminate all operating
frequencies.
3. 4-20mA input signal speed reference has been lost or is out
of range and [4-20mA Loss Sel] is set for "Stop-Fault."
4. The adapter that was the active frequency source was
disconnected.
1. Check [Minimum Freq] and [Maximum Freq] parameters.
2. Check [Skip Freq 1], [Skip Freq 2], [Skip Freq 3] and
[Skip Freq Band] parameters.
3. Check for broken wires, loose connections or transducer
loss at 4-20mA input, TB2.
4. Active frequency source cannot be removed.
Hz Sel Fault
F30
Internal error.
Reset drive to factory defaults.
IPM Current Fault
F44
The internal power module overcurrent limit had been exceeded.
Check for short circuit at the drive output or excessive load
conditions at the motor, specifically cable capacitance to ground.
IPM Overtemp Fault
F45
The internal power module thermal limit has been exceeded.
Check for blocked or dirty heat sink fins. Check for proper
mounting and spacing. Check if the ambient
temperature limit has been exceeded.
Max Retries Fault
F33
Drive unsuccessfully attempted to reset a fault and resume
running for the programmed number of [Reset/Run Tries].
Check fault buffer for fault code requiring reset. Correct the
cause of the fault and manually clear by cycling the stop
command or cycling power.
Motor Mode Flt
F24
Internal error.
Reset drive to factory defaults.
Motor Stall Fault
F6
The motor is stalled.
If the motor is drawing excessive current, the motor load is
excessive and will not allow the drive to accelerate to set speed.
A longer accel time or a reduced load may be required.
Neg Slope Fault
F35
Drive software detected a portion of the volts/Hz curve with a
negative slope.
Check drive programming.
1. [Maximum Voltage] parameter must be greater than [Base
Voltage].
2. [Base Voltage] parameter must be greater than [Start
Boost].
3. If the [DC Boost Select] parameter is set to "Break Point,"
[Base Voltage] must be greater than [Break Voltage] and
[Break Voltage] must be greater than [Start Boost].
Op Error Fault
F11
Internal error.
Reset drive to factory defaults.
Open Pot Fault
F9
An external pot is connected and the ground lead of the pot is
disconnected creating a potential drive overspeed hazard.
Check the external potentiometer circuit at TB2, terminals 1, 2
and 3 for an open circuit.
Overcurrent Fault
F12
Overcurrent is detected in overcurrent hardware trip circuit.
Check for a short circuit at the drive output or excessive load
conditions at the motor.
FAULT
DESCRIPTION
CORRECTIVE ACTION
Overload Fault
F7
Internal electronic overload trip.
An excessive motor load exists. It must be reduced such that
drive output current does not exceed the % of current set by the
[Overload Current] parameter. Reduce [Start Boost]
Overspeed Fault
F25
Internal error.
Reset drive to factory defaults.
Overtemp Fault
F8
Temperature sensor detects excessive heat.
Check for blocked or dirty heat sink fins. Check for proper
mounting and spacing (See page 2-1). Check if the ambient
temperature limit has been exceeded.
Overvolt Fault
F5
DC bus voltage exceeded maximum value.
Monitor the AC line for high line voltage or transient conditions.
Bus overvoltage can also be caused by motor regeneration.
Extend the decel time or install dynamic brake option.
Phase U Fault
F38
A phase to ground fault has been detected between the drive
and motor in this phase.
Check the wiring between the drive and motor. Check motor for
grounded phase.
Phase V Fault
F39
A phase to ground fault has been detected between the drive
and motor in this phase.
Check the wiring between the drive and motor. Check motor for
grounded phase.
Phase W Fault
F40
A phase to ground fault has been detected between the drive
and motor in this phase.
Check the wiring between the drive and motor. Check motor for
grounded phase.
Power Loss Fault
F3
DC bus voltage remained below 85% of nominal for longer than
0.500 sec. [Line Loss Fault] parameter is programmed to
"F03 Enable".
Monitor the incoming AC line for low voltage or line power
interruption.
Power Mode Fault
F26
Internal error.
Reset drive to factory defaults.
Reprogram Fault
F48
Occurs when drive parameters are reset to defaults.
Clear fault.
Run Boost Fault
F34
An attempt has been made to set the [Run Boost] parameter
to a value greater than the [Start Boost] parameter.
Verify that parameter has been programmed correctly.
Serial Fault
F10
An active local bus adapter is disconnected while it possesses
control of a local bus function.
Check for a break in communications line.
Undervolt Fault
F4
DC Bus voltage fell below the minimum value. [Line Loss
Fault] parameter is programmed to "U Volt Run".
Monitor the incoming AC line for low voltage or line power
interruption.
UV Short Fault
F41
Excessive current has been detected between these two drive
output terminals.
Check the motor and external wiring to the drive output terminals
for a shorted condition.
UW Short Fault
F42
Excessive current has been detected between these two drive
output terminals.
Check the motor and external wiring to the drive output terminals
for a shorted condition.
VW Short Fault
F43
Excessive current has been detected between these two drive
output terminals.
Check the motor and external wiring to the drive output terminals
for a shorted condition.
General Problem
Action to Take
Motor does not start
(No output voltage to motor)
("Stopped" is displayed on the HIM).
(1) Check power circuit
- Check supply voltage.
- Check all fuses and disconnects.
(2) Check motor
- Verify that motor is connected properly.
(3) Check control input signals.
- Verify that ENABLE signal is present. ("Not Enabled" is displayed on the HIM)
- Verify that START signal is present.
- Verify that STOP signal is present.
- Verify that RUN FORWARD and RUN REVERSE signals are NOT both active.
(4) Check parameter mask settings
- Verify that [START MASK] is set properly.
- Verify that [LOGIC MASK] is set properly.
- Verify that [LOCAL MASK] is set properly.
Drive Started but motor NOT rotating.
("At Speed 0.00 Hz" is displayed on HIM).
(1) Check motor
- Verify that motor is connected properly.
(2) Check Frequency Source
- Verify that frequency signal is present at terminal block TB2.
- 4-20mA signal
- 0-10V signal
-Remote Potentiometer
- Verify that Adapter or Preset Frequencies are set properly.
(3) Check control input signals.
- Verify that SW1, SW2 and SW3 are in the proper state.
(4) Check parameter settings
- Verify that [FREQ SOURCE] is showing the desired frequency source.
- Verify that [FREQ COMMAND] is the desired value.
- Verify that [REFERENCE MASK] is set properly.
Motor not accelerating properly.
(1) Check motor
- Verify that motor is connected properly.
- Verify that no mechanical problems exist.
(2) Check control input signals
- Verify that SW1, SW2, and SW3 are in the proper state to select desired Accel/Decel rates.
(3) Check parameter settings
- Verify that [ACCEL TIME 1] and [ACCEL TIME 2] are set properly.
- Verify that [CURRENT LIMIT] is set properly.
- Verify that [DC BOOST SELECT] is set correctly.
- Verify that [START BOOST] and [RUN BOOST] are set properly.
Specific Problem
Action to Take
Can't JOG from Adapter.
(1) Verify that [JOG MASK] is set properly to allow jogging from that adapter.
(2) Verify that [LOGIC MASK] is set properly to allow jogging from that adapter.
(3) Is drive already running?
(4) Examine [STOP OWNER] to verify that a maintained STOP does not exist.
Can't change direction from Adapter.
(1) Verify that [DIRECTION MASK] is set to allow direction changes from that adapter.
(2) Verify that [LOGIC MASK] is set to allow direction changes from that adapter.
Can't START from Adapter.
(1) Verify that [START MASK] is set properly to allow starting from that adapter.
(2) Verify that [LOGIC MASK] is set properly to allow starting from that adapter.
(3) Is drive already running?
(4) Examine [STOP OWNER] to verify that a maintained STOP does not exist.
Display indicates "Not Enabled".
(1) Check enable signal at TB2, terminals 11 & 12.
Can't operate in "RUN FWD/RUN REV"
mode.
(1) Verify that [INPUT MODE] is set correctly.
(2) Has power been cycled for above change to take effect?
(3) Are both RUN FORWARD and RUN REVERSE switches active?
Can't change speed from Adapter.
(1) Verify that the speed source is the adapter in question.
(examine [FREQ SOURCE] parameter).
Can't operate drive without HIM.
(1) Verify that SW1, SW2, and SW3 are in the proper state to select the desired speed source.
(Refer to Table 5.A on page 5-23)
(2) Verify that [FREQ SOURCE] and [FREQ COMMAND] are desired values.
Drive faults when Adapter is unplugged.
(1) Verify that [LOGIC MASK] is set properly to allow removal of a particular Adapter
while drive is powered up.
(2) Verify that the adapter being unplugged is not the active frequency source.
PIN ID ERROR is displayed on HIM.
(1) Unplug the HIM from the cable or drive and re-connect.
"NETWORK ERROR X"
is displayed on the HIM.
(1) Press the "UP" or "DOWN" arrow to clear the message from the HIM display.
(2) Unplug the HIM from the cable or drive and re-connect.
Can't clear fault from Adapter or
Terminal Block with stop command.
(1) Verify that [FAULT CLEAR MODE] is set to "Enabled"
(2) Verify that [FAULT MASK] is set to allow clearing of faults from chosen device.
(3) Verify that [LOGIC MASK] is set properly.