ACH550-UH User’s Manual 1-287
Diagnostics
2006 AI1 LOSS Analog input 1 is lost, or value is less than the minimum setting.
Check:
• Input source and connections
• Parameter that sets the minimum (3021)
• Parameter that sets the Alarm/Fault operation (3001)
2007
AI2 LOSS Analog input 2 is lost, or value is less than the minimum setting.
Check:
• Input source and connections
• Parameter that sets the minimum (3022)
• Parameter that sets the Alarm/Fault operation (3001)
2008
PANEL LOSS Panel communication is lost and either:
• Drive is in local control mode (the control panel displays HAND or
OFF), or
• Drive is in remote control mode (AUTO) and is parameterized to
accept start/stop, direction or reference from the control panel.
To correct check:
• Communication lines and connections
• Parameter 3002
PANEL LOSS.
• Parameters in Groups 10 START/STOP/DIR and 11: REFERENCE
SELECT (if drive operation is AUTO).
2009
DEVICE
OVERTEMP
Drive heatsink is hot. This alarm warns that a DEVICE OVERTEMP fault
may be near.
R1…R4 & R7/R8: 100 °C (212 °F)
R5/R6: 110 °C (230 °F)
Check for and correct:
• Fan failure.
• Obstructions in the air flow.
• Dirt or dust coating on the heat sink.
• Excessive ambient temperature.
• Excessive motor load.
2010
MOT OVERTEMP Motor is hot, based on either the drive’s estimate or on temperature
feedback. This alarm warns that a Motor Underload fault trip may be
near. Check:
• Check for overloaded motor.
• Adjust the parameters used for the estimate (3005…3009).
• Check the temperature sensors and Group 35 parameters.
2011
UNDERLOAD Motor load is lower than expected. This alarm warns that a Motor
Underload fault trip may be near. Check:
• Motor and drive ratings match (motor is NOT undersized for the
drive)
• Settings Group 37: USER LOAD CURVE
2012
MOTOR STALL Motor is operating in the stall region. This alarm warns that a Motor
Stall fault trip may be near.
2013
(note 1)
AUTORESET This alarm warns that the drive is about to perform an automatic fault
reset, which may start the motor.
• To control automatic reset, use parameter Group 31: AUTOMATIC
RESET.
2014
(note 1)
AUTOCHANGE This alarm warns that the PFA autochange function is active.
• To control PFA, use parameter Group 81: PFA CONTROL
Alarm
Code
Display Description
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