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ACH550 Installation, Operation and Maintenance Manual
ACH550-UH
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
2015
PFA
INTERLOCK
This alarm warns that the PFA interlocks are active, which means that
the drive cannot start the following:
• Any motor (when Autochange is used),
• The speed regulated motor (when Autochange is not used).
2016
Reserved
2017
OFF
BUTTON
Note 1.
2018
(note 1)
PID
SLEEP
This alarm warns that the PID sleep function is active, which means
that the motor could accelerate when the PID sleep function ends.
• To control PID sleep, use parameters 4022…4026 or 4122…4126.
Alarm
Code
Display
Description