ACH550 Installation, Operation and Maintenance Manual 31
ACH550-UH
Note 1. Even when the relay output is configured to indicate alarm conditions (e.g. parameter
1401
RELAY OUTPUT 1 = 5 (ALARM) or 16 (FLT/ALARM)), this alarm is not indicated by a relay output.
Maintenance
Warning! Read Safety on page 2 before performing any maintenance on the
equipment. Ignoring the safety instructions can cause injury or death.
2019 ID RUN Performing ID run.
2020
OVERRIDE This alarm warns that the Override function is active, which may start
the motor.
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 (
ENABLED).
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 (MOTOR ID
RUN) for a description of motor models.
2026 RESERVED Not used.
2027
USER LOAD
CURVE
This alarm warns that the condition defined by parameter 3701 USER
LOAD C MODE has been valid longer that half of the time difined by 3703
USER LOAD C TIME.
2028
START DELAY Shown during the Start delay. See parameter 2113 START DELAY.
Alarm
Code
Display Description
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