252 ACS550 User’s Manual
Diagnostics
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 Group 31: AUTOMATIC RESET.
2014
(Note 1)
AUTOCHANGE This alarm warns that the PFC autochange function is active.
• To control PFC, use Group 81: PFC CONTROL and the PFC macro
on page 78.
2015
PFC I LOCK This alarm warns that the PFC 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/
2017
RESERVED Not used.
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.
2019
ID RUN Performing ID Run.
2020
RESERVED Not used.
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:
• Digital input configuration.
• 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:
• Digital input configuration.
• Communication settings.
2023
EMERGENCY
STOP
Emergency stop activated.
2024
ENCODER ERROR The drive is not detecting a valid encoder signal. Check for and
correct:
• Encoder presence and proper connection (reverse wired, loose
connection,or short circuit).
• Voltage logic levels are outside of the specified range.
• A working and properly connected Pulse Encoder Interface Module,
OTAC-01.
• Wrong value entered in parameter 5001
PULSE NR. A wrong value
will only be detected if the error is such that the calculated slip is
greater than 4 times the rated slip of the motor.
• Encoder is not being used, but parameter 5002
ENCODER ENABLE =
1(
ENABLE).
2025
FIRST START Signals that a the drive is performing a First Start evaluation of motor
characteristics. This is normal the first time the motor is run after motor
parameters are entered or changed. See parameter 9910
ID RUN for a
description of motor models.
2026
RESERVED Not used.
Alarm
code
Display Description
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