67
1003 PAR AI SCALE
Parameter values are inconsistent. Check that parameter 1301 AI 1 MIN > 1302 AI 1 MAX and that parameter 1304 AI 2
MIN > 1305 AI 2 MAX.
1004 PAR AO SCALE
Parameter values are inconsistent. Check that parameter 1504 AO 1 MIN > 1505 AO 1 MAX and that parameter 1510 AO 2
MIN > 1511 AO 2 MAX.
1005 PAR PCU 2
Parameter values for power control are inconsistent: Improper motor nominal kVA or motor nominal power. Check the
following parameters:
1.1 < (9906 MOTOR NOM CURR * 9905 MOTOR NOM VOLT * 1.73 / PN) < 2.6
Where: PN = 1000 * 9909 MOTOR NOM POWER (if units are kW) or PN = 746
* 9909 MOTOR NOM POWER (if units are HP, e.g., in US)
1006 PAR EXT RO
Parameter values are inconsistent. Check the extension relay module for connection and 1410 - 1412 RELAY OUTPUTS 4
- 6 have non-zero values.
1007 PAR FBUS
Parameter values are inconsistent. Check that a parameter is set for field bus control (e.g., 1001 EXT1 COMMANDS = 10
(COMM)), but 9802 COMM PROT SEL = 0.
1008 PAR PFA MODE
Parameter values are inconsistent. The 9904 MOTOR CTRL MODE must = 3 (SCALAR SPEED) when 8123 PFA ENABLE
activated.
1009 PAR PCU 1
Parameter values for power control are inconsistent or improper motor nominal frequency or speed. Check for both of the
following:
1 < (60 * 9907 MOTOR NOM FREQ / 9908 MOTOR NOM SPEED < 16
0.8 < 9908 MOTOR NOM SPEED / (120 * 9907 MOTOR NOM FREQ / Motor poles) < 0.992
1010
OVERRIDE/PFA
CONFLICT
Override mode is enabled and PFA is activated at the same time. This cannot be done because PFA interlocks cannot be
observed in the override mode.
Table 33 — ACH550/ACS320 Fault Codes (cont)
FAULT
CODE
FAULT NAME IN PANEL DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
Table 34 — ACH550/ACS320 Alarm Codes
ALARM
CODE
ALARM NAME IN PANEL DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
2001 — Not used.
2002 — Not used.
2003 — Not used.
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 Al1 LOSS
Analog input 1 is lost, or value is less than the minimum setting. Check input source and connections. Check the parameter
that sets the minimum (3021) and the parameter that sets the Alarm/Fault operation (3001).
2007 Al2 LOSS
Analog input 2 is lost, or value is less than the minimum setting. Check input source and connections. Check 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 displays 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
COMMAND 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 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 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
a
a. This alarm is not indicated by a relay output, even when the relay output is configured to indicate alarm conditions, parameter 1401 RELAY OUTPUT = 5 (ALARM) or
16 (FLT/ALARM).
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
a
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 accelerate when the PID sleep
function ends. To control PID sleep, use parameters 4022 - 4026 or 4122 - 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.
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