![background image](http://html1.mh-extra.com/html/carrier/aero-39mn-series/aero-39mn-series_installation-start-up-and-service-instructions-manual_2562126264.webp)
264
Table 53 —
Alarm Codes
*This alarm is not indicated by a relay out-
put, even when the relay output is config-
ured to indicate alarm conditions
(parameter 1401 RELAY OUTPUT = 5
[ALARM] or 16 [FLT/ALARM]).
ALARM CODE
ALARM NAME IN PANEL
DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
2001
—
Reserved
2002
—
Reserved
2003
—
Reserved
2004
DIR LOCK
The change in direction being attempted is not allowed. Do not attempt to change the direction
of motor rotation, or change parameter 1003 DIRECTION to allow direction change (if reverse
operation is safe).
2005
I/O COMM
Field bus communication has timed out. Check fault setup (3018 COMM FAULT FUNC and
3019 COMM FAULT TIME). Check communication settings (Group 51 or 53 as appropriate).
Check for poor connections and/or noise on line.
2006
AI1 LOSS
Analog input 1 is lost, or value is less than the minimum setting. Check input source and con-
nections. Check the parameter that sets the minimum (3021) and the 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 con-
nections. Check the parameter that sets the minimum (3022) and the parameter that sets the
Alarm/Fault operation (3001).
2008
PANEL LOSS
Panel communication is lost and either the VFD is in local control mode (the control panel dis-
plays HAND), or the VFD is in remote control mode (AUTO) and is parameterized to accept
start/stop, direction or reference from the control panel. To correct, check the communication
lines and connections, Parameter 3002 PANEL LOSS, and parameters in groups 10 COM-
MAND INPUTS and 11 REFERENCE SELECT (if drive operation is REM).
2009
—
Reserved
2010
MOT OVERTEMP
Motor is hot, based on either the VFD estimate or on temperature feedback. This alarm warns
that a Motor Overload fault trip may be near. Check for overloaded motor. Adjust the parame-
ters used for the estimate (3005 through 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 that the motor and drive ratings match (motor is NOT undersized for the drive).
Check the settings on parameters 3013 to 3015.
2012
MOTOR STALL
Motor is operating in the stall region. This alarm warns that a Motor Stall fault trip may be near.
2013*
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*
AUTOCHANGE
This alarm warns that the PFA autochange function is active. To control PFA, use parameter
group 81 (PFA) and the Pump Alternation macro.
2015
PFA INTERLOCK
This alarm warns that the PFA interlocks are active, which means that the drive cannot start
any motor (when Autochange is used), or a speed regulated motor (when Autochange is not
used).
2016
—
Reserved
2017*
OFF BUTTON
This alarm indicates that the OFF button has been pressed.
2018*
PID SLEEP
This alarm warns that the PID sleep function is active, which means that the motor could accel-
erate when the PID sleep function ends. To control PID sleep, use parameters 4022 through
4026 or 4122 through 4126.
2019
ID RUN
The VFD is performing an ID run.
2020
OVERRIDE
Override mode is activated.
2021
START ENABLE 1
MISSING
This alarm warns that the Start Enable 1 signal is missing. To control Start Enable 1 function,
use parameter 1608. To correct, check the digital input configuration and the communication
settings.
2022
START ENABLE 2
MISSING
This alarm warns that the Start Enable 2 signal is missing. To control Start Enable 2 function,
use parameter 1609. To correct, check the digital input configuration and the communication
settings.
2023
EMERGENCY STOP
Emergency stop is activated.