WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to perform installation, start-up, and maintenance
by qualified personnel can result in death or serious
injury.
•
Disconnect power before proceeding.
WARNING/ALARM 17, Control word timeout
There is no communication to the frequency converter.
The warning is only active when
parameter O-04 Control
Word Timeout Function
is NOT set to
[0] Off
.
If
parameter O-04 Control Word Timeout Function
is set to
[5] Stop and Trip
, a warning appears, and the frequency
converter ramps down to a stop and shows an alarm.
Troubleshooting
•
Check the connections on the serial communi-
cation cable.
•
Increase
parameter O-03 Control Word Timeout
Time
.
•
Check the operation of the communication
equipment.
•
Verify that proper EMC installation was
performed.
ALARM 18, Start failed
The speed has not been able to exceed
parameter AP-70 Compressor Start Max Speed [RPM]
during
start within the allowed time. (set in
parameter AP-72 Compressor Start Max Time to Trip
). This
may be caused by a blocked motor.
WARNING 23, Internal fan fault
The fan warning function is a protective function that
checks if the fan is running/mounted. The fan warning can
be disabled in
parameter SP-53 Fan Monitor
(
[0] Disabled
).
For frequency converters with DC fans, there is a feedback
sensor mounted in the fan. If the fan is commanded to run
and there is no feedback from the sensor, this alarm
appears. For frequency converters with AC fans, the
voltage to the fan is monitored.
Troubleshooting
•
Check for proper fan operation.
•
Cycle power to the frequency converter and
check that the fan operates briefly at start-up.
•
Check the sensors on the control card.
WARNING 24, External fan fault
The fan warning function is a protective function that
checks if the fan is running/mounted. The fan warning can
be disabled in
parameter SP-53 Fan Monitor
(
[0] Disabled
).
For frequency converters with DC fans, there is a feedback
sensor mounted in the fan. If the fan is commanded to run
and there is no feedback from the sensor, this alarm
appears. For frequency converters with AC fans, the
voltage to the fan is monitored.
Troubleshooting
•
Check for proper fan operation.
•
Cycle power to the frequency converter and
check that the fan operates briefly at start-up.
•
Check the sensors on the heat sink.
ALARM 29, Heatsink temp
The maximum temperature of the heat sink is exceeded.
The temperature fault is not reset until the temperature
drops below a defined heat sink temperature. The trip and
reset points are different based on the frequency converter
power size.
Troubleshooting
Check for the following conditions.
•
The ambient temperature is too high.
•
The motor cables are too long.
•
Incorrect airflow clearance above and below the
frequency converter.
•
Blocked airflow around the frequency converter.
•
Damaged heat sink fan.
•
Dirty heat sink.
ALARM 30, Motor phase U missing
Motor phase U between the frequency converter and the
motor is missing.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to perform installation, start-up, and maintenance
by qualified personnel can result in death or serious
injury.
•
Disconnect power before proceeding.
Troubleshooting
•
Remove the power from the frequency converter
and check motor phase U.
ALARM 31, Motor phase V missing
Motor phase V between the frequency converter and the
motor is missing.
Troubleshooting
AF-600 FP
™
Programming Guide
DET-620D
03/2016 All rights reserved.
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