ABB ACH550-01 User Manual page 375

ACH550 User's Manual
Alarm
Display
code
2022
START ENABLE
2
MISSING
2023
EMERGENCY
STOP
2025
FIRST START
2026
INPUT PHASE
LOSS
Note 1. Even when the relay output is configured to indicate alarm conditions
(e.g. parameter 1401
is not indicated by a relay output.
Diagnostics and maintenance
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.
Emergency stop activated.
Signals that 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 models.
The intermediate DC circuit DC voltage is
oscillating due to missing input power line phase or
blown fuse. The alarm is generated when the DC
voltage ripple exceeds 14% of the nominal DC
voltage.
• Check input power line fuses
• Check for input power supply imbalance.
1 = 5 (
RELAY OUTPUT
Description
for a description of
MOTOR ID RUN
) or 16 ( /
ALARM FLT ALARM
), this alarm
363